CN108118246A - A kind of anti-fracture wear-resistant steel alloy of high tenacity - Google Patents
A kind of anti-fracture wear-resistant steel alloy of high tenacity Download PDFInfo
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- CN108118246A CN108118246A CN201711460174.6A CN201711460174A CN108118246A CN 108118246 A CN108118246 A CN 108118246A CN 201711460174 A CN201711460174 A CN 201711460174A CN 108118246 A CN108118246 A CN 108118246A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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Abstract
The present invention provides a kind of anti-fracture wear-resistant steel alloy of high tenacity, by weight percentage including following component：C 0.10 0.23%, Si 0.3 1.5%, Mn 0.8 2.0%, Cr 0.3 2.0%, Mo 0.1 0.8%, Sr 0.02 1.50%, B 0.002 0.008%, Nb 0.02 0.50%, In 0.01 0.80%, Er 0.01 0.80%, P≤0.03% (not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.The steel alloy of the present invention is on the premise of excellent high temperature abrasion resistance properties are had both, with excellent obdurability, stirring-head can effectively be avoided when carrying out aluminum bronze, red copper when the butt welding of materials, it deforms upon or is broken since high torque is acted on along the root of clamp area and mixing needle, so as to extend stirring-head service life, enterprise's production cost is reduced.
Description
Technical field
The present invention relates to Steel material field, more particularly to a kind of anti-fracture wear-resistant steel alloy of high tenacity.
Background technology
Stirring-head is the key that agitating friction welding technology, is known as the heart of agitating friction weldering.The quality of stirring-head is not only
It determines the performance of friction stir welding, and decides the production cost of agitating friction weldering.Stirring-head is by the shaft shoulder, clamping part
Divide and mixing needle forms.During agitating friction weldering, mixing needle will be rotating at the combination interface of insertion materials to be welded, and
Advance under certain speed along weld seam.Therefore, in agitating friction weldering, the working environment of mixing needle is more severe, to wear resistance
Can, especially high-temperature wearable damage performance requirement is high.
Domestic most common stirring head material is H13 steel.But the high temperature of the stirring-head of H13 steel making in the welding process
Under heat fatigue effect, the transition position being connected positioned at mixing needle root with the shaft shoulder forms tired source, when materials such as progress aluminum bronze, red coppers
Butt welding when, due under being acted in high torque along clamp area and the fracture of root of mixing needle.
The Chinese invention patent of Application No. 201510991313.2 discloses a kind of high nitrogen steel of agitating friction weldering and stirs
Mix head and its manufacturing process.The high nitrogen steel material of the stirring-head by weight percentage, contains following element：Mn 16-19%,
Cr 20-30%, N 0.5-0.9%, Mo 1.5-2.5%, Ni≤0.2%, S≤0.03%, P≤0.03%, C≤0.03%,
Si≤0.4%, surplus are iron and inevitable impurity.The high nitrogen steel strength of materials height, creep resistant, fatigue behaviour are good, using this
The stirring-head intensity that material makes is high, benefits from long lifespan, and heat production is stablized, and disclosure satisfy that the low melting points non-ferrous metal such as aluminium alloy to stirring
Mix the requirement of a performance.
But above-mentioned stirring head material is used for the welding of the low melting points non-ferrous metals such as aluminium alloy, and the stirring head material
It is not with the characteristics of high tenacity, therefore, when carrying out aluminum bronze, red copper when the butt welding of materials, under high torque effect, presss from both sides
The root for holding area and mixing needle is easily broken off.
The content of the invention
In view of the foregoing deficiencies of prior art, it is anti-fracture wear-resistant it is an object of the invention to provide a kind of high tenacity
Steel alloy, for solve in the prior art the poor toughness of stirring-head steel alloy, easy fracture, it is easy to wear the problems such as.
In order to achieve the above objects and other related objects, it is anti-fracture wear-resistant to provide a kind of high tenacity for first aspect present invention
Steel alloy, by weight percentage including following component：C 0.10-0.23%, Si 0.3-1.5%, Mn 0.8-2.0%, Cr
0.3-2.0%, Mo 0.1-0.8%, Sr 0.02-1.50%, B 0.002-0.008%, Nb 0.02-0.50%, In 0.01-
0.80%th, Er 0.01-0.80%, P≤0.03% (not including 0%), S≤0.03% (not including 0%), surplus is for Fe and not
It can avoid impurity.
In some embodiments of the invention, by weight percentage including following component：C 0.16-0.23%, Si 0.3-
0.9%th, Mn 1.35-2.0%, Cr 0.3-1.2%, Mo 0.4-0.8%, Sr 0.02-0.85%, B 0.005-0.008%,
Nb 0.02-0.50%, In 0.30-0.80%, Er 0.01-0.45%, P≤0.03% (not including 0%), S≤0.03%
(not including 0%), surplus are Fe and inevitable impurity.
In some embodiments of the invention, by weight percentage including following component：C 0.16-0.20%, Si 0.7-
0.9%th, Mn 1.35-1.50%, Cr 0.8-1.2%, Mo 0.4-0.45%, Sr 0.35-0.85%, B 0.005%, Nb
0.18-0.50%, In 0.30-0.40%, Er 0.25-0.45%, P≤0.03% (not including 0%), S≤0.03% (do not wrap
Containing 0%), surplus is Fe and inevitable impurity.
In some embodiments of the invention, by weight percentage including following component：C 0.16-0.20%, Si 0.7-
0.85%th, Mn 1.35-1.50%, Cr 0.8-1.1%, Mo 0.40-0.42%, Sr 0.35-0.85%, B 0.005%, Nb
0.18-0.28%, In 0.30-0.40%, Er 0.25-0.45%, P≤0.03% (not including 0%), S≤0.03% (do not wrap
Containing 0%), surplus is Fe and inevitable impurity.
In some embodiments of the invention, by weight percentage including following component：C 0.18-0.20%, Si 0.7-
0.8%th, Mn 1.35-1.50%, Cr 1.0-1.1%, Mo 0.40-0.42%, Sr 0.35-0.6%, B 0.005%, Nb
0.18-0.25%, In 0.35-0.40%, Er 0.38-0.45%, P≤0.03% (not including 0%), S≤0.03% (do not wrap
Containing 0%), surplus is Fe and inevitable impurity.
In some embodiments of the invention, by weight percentage including following component：C 0.20%, Si 0.8%, Mn
1.35%th, Cr 1.0%, Mo 0.42%, Sr 0.6%, B 0.005%, Nb 0.25%, In 0.35%, Er 0.38%, P
≤ 0.03% (not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.
In some embodiments of the invention, weight percent≤0.008% (not including 0%) of P.
In some embodiments of the invention, weight percent≤0.005% (not including 0%) of P.
In some embodiments of the invention, weight percent≤0.008% (not including 0%) of S.
In some embodiments of the invention, weight percent≤0.005% (not including 0%) of S.
In some embodiments of the invention, weight percent≤0.004% (not including 0%) of S.
In some embodiments of the invention, weight percent≤0.10% (not including 0%) of inevitable impurity.
In some embodiments of the invention, weight percent≤0.08% (not including 0%) of inevitable impurity.
Second aspect of the present invention provides application of the above-mentioned anti-fracture wear-resistant steel alloy of high tenacity in stirring-head production.
As described above, a kind of anti-fracture wear-resistant steel alloy of high tenacity of the present invention, has the advantages that：The present invention
Steel alloy on the premise of excellent high temperature abrasion resistance properties are had both, have excellent obdurability, can effectively avoid stirring-head
When carrying out Solder for Al-Cu Joint Welding, red copper when the butt welding of materials, shape occurs since high torque is acted on along clamp area and the root of mixing needle
Become or be broken, so as to extend stirring-head service life, reduce enterprise's production cost.Peak temperature is molten less than material during welding
Point is typically in the range of between the 50%-90% of materials to be welded fusing point.
Wherein, in steel alloy：
The main function of carbon (C) is to maintain the preferable intensity of material.
The main function of silicon (Si) is as reducing agent and deoxidier, and improves the elastic limit of steel, and yield point, tension are strong
Degree and antioxygenic property.
The main function of manganese (Mn) is as deoxidier and desulfurizing agent, and improves the obdurability of material, improves the heat of material
Processing performance.
The main function of chromium (Cr) is intensity, hardness, wearability, inoxidizability and the corrosion resistance for improving material.
The main function of molybdenum (Mo) is crystal grain thinning, improves the quenching degree and thermostrength of material, makes material at high temperature
Keep enough intensity and creep resisting ability.
The main function of strontium (Sr) is the high-temperature oxidation resistance for improving material, and the high-temperature wearable of reinforcing material damages performance.
The main function of boron (B) is the compactness for improving material, improves intensity.
The main function of niobium (Nb) be crystal grain thinning, reduce material superheated susceptivity and temper brittleness, improve intensity and
Corrosion resistance.
The main function of indium (In) is the toughness for improving material.
The main function of erbium (Er) is composition, form, distribution and the property for changing field trash in material, so as to improve material
Toughness, cold-forming property and abrasion resistance properties.
Second aspect of the present invention provides the purposes in the stirring-head production of the above-mentioned anti-fracture wear-resistant steel alloy of high tenacity.
It is compared with the prior art, the beneficial effects of the invention are as follows：The steel alloy of the present invention is to have both excellent high temperature wear-resistant
On the premise of performance, there is excellent obdurability, stirring-head can effectively be avoided to carry out the butt welding of the materials such as aluminum bronze, red copper
When, it deforms upon or is broken since high torque is acted on along the root of clamp area and mixing needle, the longevity is used so as to extend stirring-head
Life reduces enterprise's production cost.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be clear that in the following example not specifically dated process equipment or device using conventional equipment in the art or
Device；All pressure values and scope are all referring to absolute pressure.
Embodiment 1
A kind of anti-fracture agitating friction bonding machine stirring-head steel alloy of high tenacity heat resistant and wear resistant, is wrapped by weight percentage
Include following component：C 0.10%, Si 1.5%, Mn 0.8%, Cr 2.0%, Mo 0.1%, Sr 1.50%, B 0.002%,
Nb 0.50%, In 0.01%, Er 0.80%, P 0.03%, S 0.03%, inevitable impurity 0.08%, surplus Fe.
Embodiment 2
A kind of anti-fracture agitating friction bonding machine stirring-head steel alloy of high tenacity heat resistant and wear resistant, is wrapped by weight percentage
Include following component：C 0.23%, Si 0.3%, Mn 2.0%, Cr 0.3%, Mo 0.8%, Sr 0.02%, B 0.008%,
Nb 0.02%, In 0.80%, Er 0.01%, P 0.01%, S 0.01%, the content 0.08% of inevitable impurity, surplus
For Fe.
Embodiment 3
A kind of anti-fracture agitating friction bonding machine stirring-head steel alloy of high tenacity heat resistant and wear resistant, is wrapped by weight percentage
Include following component：C 0.16%, Si 0.9%, Mn 1.4%, Cr 1.2%, Mo 0.45%, Sr 0.75%, B 0.005%,
Nb 0.50%, In 0.40%, Er 0.40%, P 0.005%, S 0.004%, inevitable impurity 0.08%, surplus are
Fe。
Embodiment 4
A kind of anti-fracture agitating friction bonding machine stirring-head steel alloy of high tenacity heat resistant and wear resistant, is wrapped by weight percentage
Include following component：C 0.20%, Si 0.8%, Mn 1.35%, Cr 1.0%, Mo 0.42%, Sr 0.6%, B 0.005%,
Nb 0.25%, In 0.35%, Er 0.38%, P 0.005%, S 0.005%, inevitable impurity 0.08%, surplus are
Fe。
Embodiment 5
A kind of anti-fracture agitating friction bonding machine stirring-head steel alloy of high tenacity heat resistant and wear resistant, is wrapped by weight percentage
Include following component：C 0.18%, Si 0.7%, Mn 1.50%, Cr 1.10%, Mo 0.40%, Sr 0.35%, B
0.005%th, Nb 0.18%, In 0.40%, Er 0.45%, P 0.005%, S 0.008%, inevitable impurity 0.08%,
Surplus is Fe.
Embodiment 6
A kind of anti-fracture agitating friction bonding machine stirring-head steel alloy of high tenacity heat resistant and wear resistant, is wrapped by weight percentage
Include following component：C 0.16%, Si 0.85%, Mn 1.45%, Cr 0.80%, Mo 0.40%, Sr 0.85%, B
0.005%th, Nb 0.28%, In 0.30%, Er 0.25%, P 0.008%, S 0.008%, inevitable impurity 0.08%,
Surplus is Fe.
With reference to GB/T229-2007《Metal material Charpy pendulum impact test method》Standard carries out the impact test of material,
Test temperature is room temperature；With reference to GB/T 21143-2014《The uniform tests method of the quasi-static fracture toughness of metal material》Standard
The destructive test of material is carried out, test temperature is room temperature (25 DEG C)；With reference to GB/T 12444-2006《Material Wear is tested
Method test ring-test block sliding wear testing》Standard carries out the high temperature wear experiment of material, and test temperature is 500 DEG C.In order to business
It is more intuitively compared with H13 steel, test result is converted to relative impact toughness, opposite fracture toughness, opposite respectively
Abrasion resistance properties, and the test value of H13 steel is defined as 1.A kind of high tenacity heat resistant and wear resistant is anti-fracture described in each embodiment stirs
Friction welding machine stirring-head steel alloy is mixed, is compared with the test data of H13 Steel materials：
Table 1
| Embodiment | Relative impact toughness | With respect to fracture toughness | Relative wear damages performance |
| H13 steel | 1 | 1 | 1 |
| Embodiment 1 | 1.24 | 1.28 | 1.34 |
| Embodiment 2 | 1.31 | 1.37 | 1.46 |
| Embodiment 3 | 1.48 | 1.49 | 1.54 |
| Embodiment 4 | 1.62 | 1.63 | 1.69 |
| Embodiment 5 | 1.54 | 1.58 | 1.74 |
| Embodiment 6 | 1.51 | 1.53 | 1.72 |
The preparation process of the steel alloy：The first step prepares electroslag using " intermediate frequency furnace+electroslag remelting " technique
Ingot, specially：First melting ferrimanganic intermediate alloy and the simple substance of other respective components in intermediate frequency furnace, smelting temperature 1520~
1590 DEG C, after composition adjustment reaches qualification, molten steel is poured by rodlike consutrode using bet method, it is de- after the completion of casting
Slow cooling is carried out in mould and immediately embedment sand pit；Second step, ingot annealing processing, anneals in chamber type electric resistance furnace, annealing temperature
840~890 DEG C of degree, soaking time are determined according to steel ingot diameter, by the 1.5 minutes/millimeter definite time；3rd step, rolling, according to
The pair rolling technique of finish rolling after roughing is rolled, and obtains club-shaped material；4th step, heat treatment, using secondary returning after quenching
The heat treatment process of fire, 1010~1080 DEG C of hardening heat, (size is based on material maximum gauge by cool time 1.5min/mm
Calculate), oil cooling；530 DEG C~620 DEG C of temperature, tempering is secondary, and each tempering time is 2~4 times of cool time.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of anti-fracture wear-resistant steel alloy of high tenacity, which is characterized in that by weight percentage including following component：C
0.10-0.23%, Si 0.3-1.5%, Mn 0.8-2.0%, Cr 0.3-2.0%, Mo 0.1-0.8%, Sr 0.02-
1.50%th, B 0.002-0.008%, Nb 0.02-0.50%, In 0.01-0.80%, Er 0.01-0.80%, P≤0.03%
(not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.
2. the anti-fracture wear-resistant steel alloy of high tenacity according to claim 1, which is characterized in that include by weight percentage
Following component：C 0.16-0.23%, Si 0.3-0.9%, Mn 1.35-2.0%, Cr 0.3-1.2%, Mo 0.4-0.8%,
Sr 0.02-0.85%, B 0.005-0.008%, Nb 0.02-0.50%, In 0.30-0.80%, Er 0.01-0.45%, P
≤ 0.03% (not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.
3. the anti-fracture wear-resistant steel alloy of high tenacity according to claim 2, which is characterized in that include by weight percentage
Following component：C 0.16-0.20%, Si 0.7-0.9%, Mn 1.35-1.50%, Cr 0.8-1.2%, Mo 0.4-
0.45%th, Sr 0.35-0.85%, B 0.005%, Nb 0.18-0.50%, In 0.30-0.40%, Er 0.25-0.45%,
P≤0.03% (not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.
4. the anti-fracture wear-resistant steel alloy of high tenacity according to claim 3, which is characterized in that include by weight percentage
Following component：C 0.16-0.20%, Si 0.7-0.85%, Mn 1.35-1.50%, Cr 0.8-1.1%, Mo 0.40-
0.42%th, Sr 0.35-0.85%, B 0.005%, Nb 0.18-0.28%, In 0.30-0.40%, Er 0.25-0.45%,
P≤0.03% (not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.
5. the anti-fracture wear-resistant steel alloy of high tenacity according to claim 4, which is characterized in that include by weight percentage
Following component：C 0.18-0.20%, Si 0.7-0.8%, Mn 1.35-1.50%, Cr 1.0-1.1%, Mo 0.40-
0.42%th, Sr 0.35-0.6%, B 0.005%, Nb 0.18-0.25%, In 0.35-0.40%, Er 0.38-0.45%, P
≤ 0.03% (not including 0%), S≤0.03% (not including 0%), surplus is Fe and inevitable impurity.
6. the anti-fracture wear-resistant steel alloy of high tenacity according to claim 5, which is characterized in that include by weight percentage
Following component：C 0.20%, Si 0.8%, Mn 1.35%, Cr 1.0%, Mo 0.42%, Sr 0.6%, B 0.005%, Nb
0.25%th, In 0.35%, Er 0.38%, P≤0.03% (not including 0%), S≤0.03% (not including 0%), surplus Fe
With inevitable impurity.
7. according to the anti-fracture wear-resistant steel alloy of claim 1-6 any one of them high tenacity, which is characterized in that the weight of P
Percentage≤0.008% (does not include 0%)；Preferably, weight percent≤0.005% (not including 0%) of P.
8. according to the anti-fracture wear-resistant steel alloy of claim 1-6 any one of them high tenacity, which is characterized in that the weight of S
Percentage≤0.008% (does not include 0%)；Preferably, weight percent≤0.005% (not including 0%) of S；It is highly preferred that
Weight percent≤0.004% (not including 0%) of S.
9. according to the anti-fracture wear-resistant steel alloy of claim 1-6 any one of them high tenacity, which is characterized in that inevitable
Weight percent≤0.10% (not including 0%) of impurity；Preferably, weight percent≤0.08% of inevitable impurity
(not including 0%).
10. according to the anti-fracture wear-resistant steel alloy of claim 1-9 any one of them high tenacity answering in stirring-head production
With.
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| CN115074628A (en) * | 2022-06-30 | 2022-09-20 | 鞍钢股份有限公司 | HB 450-grade high-wear-resistance cold-bending steel plate and production method thereof |
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