WO2003026815A1 - Device and method for producing microcrystalline materials - Google Patents
Device and method for producing microcrystalline materials Download PDFInfo
- Publication number
- WO2003026815A1 WO2003026815A1 PCT/AT2002/000272 AT0200272W WO03026815A1 WO 2003026815 A1 WO2003026815 A1 WO 2003026815A1 AT 0200272 W AT0200272 W AT 0200272W WO 03026815 A1 WO03026815 A1 WO 03026815A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- deformation
- material sample
- sample
- pressure
- spatial directions
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
- B21J1/025—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough affecting grain orientation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/03—Amorphous or microcrystalline structure
Definitions
- the invention relates to a device and a method for producing finely crystalline, preferably submicron or nanocrystalline materials by multiple plastic deformation of a material sample, wherein the outer shape of the material sample after the first deformation essentially corresponds to that after the last deformation.
- Submicron or nanocrystalline materials in particular of metals, alloys, or intermetallic compounds, are ideally suited for a wide range of applications and in particular have a very high strength. Such materials have been used since the 1980's, e.g. manufactured by powder metallurgical way. However, metallic materials produced in such a way unfortunately have a relatively low ductility.
- the material sample 1 to be deformed is located in a cylindrical recess of a pressure-resistant mold 2 and is pressurized with a pressure piston 3 with a cylindrical cross-section.
- a rotational movement of the mold 2 or the plunger 3 about the common axis there is a high-pressure torsional deformation of the sample 1, which, however, is very inhomogeneous, since in the region of the axis of rotation less deformation than in the peripheral region is applied.
- Fig. 3 the CEC method is sketched, in which the pressure-resistant mold 2 has a cylindrical channel with a taper.
- the material sample 1 is pressed by means of a first plunger 3 through the cylindrical taper of the channel against the pressure of a second plunger 3, wherein the sample is subjected to a compression followed by extrusion. Thereafter, the direction of movement of the two plunger 3 is reversed and the sample of material 1 is again pressed through the cylindrical taper. Again, the outer shape of the material sample remains essentially unchanged. and the cyclic deformation can be repeated until the desired fine structure is achieved.
- the starting material in contrast to the present invention, is not a solid, homogeneous material sample, but a mass M of particulate material which is pressure sintered by applying first, second and third compressive forces in directions normal to each other to form a final product.
- Means for heating the mass M suitable for supplying a sintering heat, e.g. an induction heating unit with a coil surrounding the mass M or an electric heating unit with opposite current-conducting electrodes.
- a sintering heat e.g. an induction heating unit with a coil surrounding the mass M or an electric heating unit with opposite current-conducting electrodes.
- JP 08-188838 A discloses a device with which a homogeneous particle distribution in particle-reinforced aluminum alloys is to be achieved.
- a variant of the ECA method is described in a first embodiment, in which two angled channels are combined in the form of a cross channel, but here - as in all ECA method - the sample by more or less formed edges (change in direction by 90 °) must be pressed, whereby large frictional forces arise.
- JP 08-188838 A two opposing plunger are used in each case, which are guided by their conical shape in the pairwise movement to each other sliding and change the volume and shape of the interior.
- the high frictional forces of the pressure pistons guided against one another must be mentioned.
- Object of the present invention is to propose a device or a method for producing finely crystalline, preferably submicron or nanocrystalline materials by multiple plastic deformation of a material sample, with homogeneous, submicron or nanocrystalline materials are to arise at relatively low energy consumption.
- This object is achieved according to the invention by the following method steps:
- the device according to the invention has a pressure-resistant form with a substantially parallelepiped or cube-shaped interior, wherein at least one of the interior bounding wall surfaces is designed as movable in the direction of the interior plunger, after the pressurization, the material sample is substantially normal to Pressure direction in a free area of the pressure-resistant mold expands.
- the strength of recrystallized pure copper from about 60 MPa can be increased to 500 MPa, without significant losses in the elongation at break.
- Intermetallic Ni 3 Al materials are relatively brittle. Such treatment can give them considerable ductility.
- Recrystallized pure chromium has a brittle-transition temperature of about 300 ° C. In a submicron crystalline pure chromium produced by multiple plastic deformation, the brittle transition temperature is below room temperature.
- a deformation path of more than 30%, preferably 50 to 60%, of the thickness of the material sample in the direction of deformation is carried out.
- a deformation path of more than 30%, preferably 50 to 60%, of the thickness of the material sample in the direction of deformation is carried out.
- about 8 to 10 deformation steps are necessary. With increasing number of cycles, the grain size decreases further and the misorientation (tilting) of the neighboring grains increases.
- At least one pressure stamp is used to deform the material sample, which alternately acts on different boundary surfaces of the material sample, which boundary surfaces enclose an angle of substantially 90 °.
- 4a to 4c show a first embodiment of a device for producing finely crystalline materials in the working positions a to c and the
- the material sample 1 is first of all inserted into the pressure-resistant mold 2, as shown in FIG. 4 a, with the top surface A of the sample resting against the pressure ram 3. Thereafter, as shown in FIG. 4b, a compression deformation of the sample, wherein the plunger 3 in the example shown a Deformation of about 50% of the thickness or height of the material sample travels in the deformation direction.
- the sample expands normal to the printing direction into the free area 7 of the pressure-resistant mold 2 until the expansion is limited by the side surfaces 6. This results again in a material sample of the same or very similar external shape as in Fig. 4a with the boundary surfaces A to C.
- the sample is rotated and used for the next deformation of FIG. 4c in the mold 2.
- two or three plungers 3 are used whose axes are normal to one another.
- one of the two pressure pistons 3 can be held in each case, and thus form part of the pressure-resistant mold 2, while the other pressure piston 3 deforms the material sample 1.
- the manipulation effort is thereby reduced since the material sample 1 does not have to be removed from the mold 2 after each deformation, rotated and replaced.
- two or three mutually adjoining wall surfaces are designed as pressure stamps 3 which can be actuated alternately.
- the guide elements for the three pressure pistons 3 are indicated only by dashed lines, the material sample is concealed by the cyclically actuable pressure pistons 3.
- At least one of the wall surfaces bounding the interior space may be made removable or slidable.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50207219T DE50207219D1 (en) | 2001-09-25 | 2002-09-19 | DEVICE AND METHOD FOR PRODUCING FINE CRYSTALLINE MATERIALS |
EP02799373A EP1438150B1 (en) | 2001-09-25 | 2002-09-19 | Device and method for producing microcrystalline materials |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0151601A AT411027B (en) | 2001-09-25 | 2001-09-25 | DEVICE AND METHOD FOR PRODUCING FINE CRYSTALLINE MATERIALS |
ATA1516/2001 | 2001-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003026815A1 true WO2003026815A1 (en) | 2003-04-03 |
Family
ID=3688304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2002/000272 WO2003026815A1 (en) | 2001-09-25 | 2002-09-19 | Device and method for producing microcrystalline materials |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1438150B1 (en) |
AT (2) | AT411027B (en) |
DE (1) | DE50207219D1 (en) |
WO (1) | WO2003026815A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005039792A1 (en) * | 2003-10-08 | 2005-05-06 | University Of Strathclyde | A method of treating a metal billet |
AT501546A1 (en) * | 2005-03-08 | 2006-09-15 | Austria Wirtschaftsservice Tec | METHOD FOR PRODUCING METALLIC COMPOSITE MATERIALS |
DE102009050543B3 (en) * | 2009-10-23 | 2011-05-26 | Peter Prof. Dr.-Ing. Dipl.-Wirtsch.-Ing. Groche | Method and device for producing fine-grained, polycrystalline materials or workpieces from elongated or tubular semi-finished products |
AT510770A1 (en) * | 2010-11-29 | 2012-06-15 | Ait Austrian Inst Technology | METHOD FOR PRODUCING AN OBJECT FROM A METAL OR ALLOY, ITEM OBTAINED THEREOF AND PRESS TOOL THEREFOR |
CN103785844A (en) * | 2014-01-13 | 2014-05-14 | 上海交通大学 | Nano-structure block magnesium material and preparation method thereof |
JP2014530765A (en) * | 2011-10-20 | 2014-11-20 | ポステク アカデミー−インダストリー ファウンデイションPostech Academy−Industryfoundation | Method for producing helical layered composites using compression torsion |
CN104690205A (en) * | 2015-01-27 | 2015-06-10 | 浙江大学 | Die and method for preparing large-size three-dimensional full-density nanocrystalline iron body material |
CN105107914A (en) * | 2015-08-17 | 2015-12-02 | 盐城工学院 | High-pressure torsion forming machine |
CN106269971A (en) * | 2016-08-17 | 2017-01-04 | 中国兵器工业第五九研究所 | The method that Compound Extrusion prepares micro-nano copper is reversed in a kind of multidirectional compression |
CN106381458A (en) * | 2016-10-13 | 2017-02-08 | 南京工程学院 | Amorphous alloy strengthening method based on limited high-pressure torsion |
DE102015218408A1 (en) | 2015-09-24 | 2017-03-30 | Siemens Aktiengesellschaft | Component and / or surface of a refractory metal or a refractory metal alloy for thermocyclic loads and manufacturing method thereto |
CN106825097A (en) * | 2017-04-01 | 2017-06-13 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
CN108714631A (en) * | 2018-05-17 | 2018-10-30 | 北京科技大学 | It is a kind of turn round-squeeze compound strong flow manufacturing process and process unit |
CN111139346A (en) * | 2020-01-16 | 2020-05-12 | 暨南大学 | Method for improving catalytic activity of Fe-based amorphous alloy for electrolytic water hydrogen evolution through plastic deformation treatment |
CN113774297A (en) * | 2021-09-08 | 2021-12-10 | 厦门理工学院 | Method for improving corrosion resistance and mechanical property of aluminum alloy based on severe plastic deformation and high-performance corrosion-resistant aluminum alloy |
Families Citing this family (4)
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DE102015107308B4 (en) * | 2015-05-11 | 2017-10-19 | Gottfried Wilhelm Leibniz Universität Hannover | Extrusion method, extrusion device and extrusion tool |
CN109759488B (en) * | 2018-12-29 | 2019-11-22 | 华中科技大学 | A kind of high pressure torsion shaping dies |
CN110508635B (en) * | 2019-08-27 | 2021-07-30 | 太原理工大学 | Asymmetric reciprocating extrusion device with separated male die and machining method |
CN113369328B (en) * | 2021-06-11 | 2023-04-25 | 中国兵器工业第五九研究所 | Open die cavity circulation extrusion die |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4721537A (en) * | 1985-10-15 | 1988-01-26 | Rockwell International Corporation | Method of producing a fine grain aluminum alloy using three axes deformation |
JPH09276972A (en) * | 1996-04-19 | 1997-10-28 | Nippon Steel Corp | Flat surface strain repeated working method |
EP1044741A2 (en) * | 1999-04-09 | 2000-10-18 | Japan as represented by Director-General, Agency of Industrial Science and Technology | Large deformation apparatus, the deformation method and the deformed metallic materials |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4273581A (en) * | 1978-04-07 | 1981-06-16 | Inoue-Japax Research Incorporated | Sintering method |
US5513512A (en) * | 1994-06-17 | 1996-05-07 | Segal; Vladimir | Plastic deformation of crystalline materials |
JPH08188838A (en) * | 1994-12-28 | 1996-07-23 | Toyota Central Res & Dev Lab Inc | Manufacture of aluminum alloy |
US5850755A (en) * | 1995-02-08 | 1998-12-22 | Segal; Vladimir M. | Method and apparatus for intensive plastic deformation of flat billets |
-
2001
- 2001-09-25 AT AT0151601A patent/AT411027B/en not_active IP Right Cessation
-
2002
- 2002-09-19 AT AT02799373T patent/ATE329707T1/en not_active IP Right Cessation
- 2002-09-19 EP EP02799373A patent/EP1438150B1/en not_active Expired - Lifetime
- 2002-09-19 DE DE50207219T patent/DE50207219D1/en not_active Expired - Fee Related
- 2002-09-19 WO PCT/AT2002/000272 patent/WO2003026815A1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4721537A (en) * | 1985-10-15 | 1988-01-26 | Rockwell International Corporation | Method of producing a fine grain aluminum alloy using three axes deformation |
JPH09276972A (en) * | 1996-04-19 | 1997-10-28 | Nippon Steel Corp | Flat surface strain repeated working method |
EP1044741A2 (en) * | 1999-04-09 | 2000-10-18 | Japan as represented by Director-General, Agency of Industrial Science and Technology | Large deformation apparatus, the deformation method and the deformed metallic materials |
Non-Patent Citations (2)
Title |
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DATABASE WPI Section PQ Week 199802, Derwent World Patents Index; Class P52, AN 1998-013134, XP002222070 * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30) * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005039792A1 (en) * | 2003-10-08 | 2005-05-06 | University Of Strathclyde | A method of treating a metal billet |
AT501546A1 (en) * | 2005-03-08 | 2006-09-15 | Austria Wirtschaftsservice Tec | METHOD FOR PRODUCING METALLIC COMPOSITE MATERIALS |
AT501546B1 (en) * | 2005-03-08 | 2007-02-15 | Austria Wirtschaftsservice Tec | METHOD FOR PRODUCING METALLIC COMPOSITE MATERIALS |
DE102009050543B3 (en) * | 2009-10-23 | 2011-05-26 | Peter Prof. Dr.-Ing. Dipl.-Wirtsch.-Ing. Groche | Method and device for producing fine-grained, polycrystalline materials or workpieces from elongated or tubular semi-finished products |
AT510770A1 (en) * | 2010-11-29 | 2012-06-15 | Ait Austrian Inst Technology | METHOD FOR PRODUCING AN OBJECT FROM A METAL OR ALLOY, ITEM OBTAINED THEREOF AND PRESS TOOL THEREFOR |
AT510770B1 (en) * | 2010-11-29 | 2015-01-15 | Ait Austrian Inst Technology | METHOD FOR PRODUCING AN OBJECT FROM A METAL OR ALLOY, ITEM OBTAINED THEREOF AND PRESS TOOL THEREFOR |
JP2014530765A (en) * | 2011-10-20 | 2014-11-20 | ポステク アカデミー−インダストリー ファウンデイションPostech Academy−Industryfoundation | Method for producing helical layered composites using compression torsion |
CN103785844A (en) * | 2014-01-13 | 2014-05-14 | 上海交通大学 | Nano-structure block magnesium material and preparation method thereof |
CN104690205B (en) * | 2015-01-27 | 2016-08-17 | 浙江大学 | The mould of the three-dimensional large scale full-compact nanometer crystalline substance iron block materials of preparation and method |
CN104690205A (en) * | 2015-01-27 | 2015-06-10 | 浙江大学 | Die and method for preparing large-size three-dimensional full-density nanocrystalline iron body material |
CN105107914A (en) * | 2015-08-17 | 2015-12-02 | 盐城工学院 | High-pressure torsion forming machine |
DE102015218408A1 (en) | 2015-09-24 | 2017-03-30 | Siemens Aktiengesellschaft | Component and / or surface of a refractory metal or a refractory metal alloy for thermocyclic loads and manufacturing method thereto |
CN106269971A (en) * | 2016-08-17 | 2017-01-04 | 中国兵器工业第五九研究所 | The method that Compound Extrusion prepares micro-nano copper is reversed in a kind of multidirectional compression |
CN106269971B (en) * | 2016-08-17 | 2018-06-19 | 中国兵器工业第五九研究所 | A kind of method that multidirectional compression torsion Compound Extrusion prepares micro-nano copper |
CN106381458A (en) * | 2016-10-13 | 2017-02-08 | 南京工程学院 | Amorphous alloy strengthening method based on limited high-pressure torsion |
CN106825097A (en) * | 2017-04-01 | 2017-06-13 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
CN108714631A (en) * | 2018-05-17 | 2018-10-30 | 北京科技大学 | It is a kind of turn round-squeeze compound strong flow manufacturing process and process unit |
CN111139346A (en) * | 2020-01-16 | 2020-05-12 | 暨南大学 | Method for improving catalytic activity of Fe-based amorphous alloy for electrolytic water hydrogen evolution through plastic deformation treatment |
CN111139346B (en) * | 2020-01-16 | 2021-07-27 | 暨南大学 | Method for improving catalytic activity of Fe-based amorphous alloy for electrolytic water hydrogen evolution through plastic deformation treatment |
CN113774297A (en) * | 2021-09-08 | 2021-12-10 | 厦门理工学院 | Method for improving corrosion resistance and mechanical property of aluminum alloy based on severe plastic deformation and high-performance corrosion-resistant aluminum alloy |
Also Published As
Publication number | Publication date |
---|---|
DE50207219D1 (en) | 2006-07-27 |
EP1438150B1 (en) | 2006-06-14 |
AT411027B (en) | 2003-09-25 |
EP1438150A1 (en) | 2004-07-21 |
ATA15162001A (en) | 2003-02-15 |
ATE329707T1 (en) | 2006-07-15 |
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