CN112540454A - Auxiliary device and method for acquiring grain orientation imaging graph - Google Patents
Auxiliary device and method for acquiring grain orientation imaging graph Download PDFInfo
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Abstract
The invention discloses a device and a method for assisting in acquiring a grain orientation imaging diagram, wherein the device comprises: an upper layer annular cavity, a middle layer annular cavity and a lower layer annular cavity which are fixed in sequence in a stepped manner; the cavity comprises an outer side surface body, an inner side surface body, a top surface body and a bottom surface body which are sequentially fixed and sealed to form the cavity; the bottom surface body is made of white semi-transparent material; annular lamp bodies with different primary colors are arranged in the cavities of the three layers; the light of the lamp body is diffused through the bottom surface body to form an annular surface light source, the light of the annular surface light source irradiates on the alloy crystal grain surface on the object placing table, and then the optical digital microscope acquires a large-area crystal grain orientation imaging picture. Because the brightness of the crystal grain reflecting three layers with different orientations is different, the crystal grain with different orientations has different colors and the crystal grain with the same orientation has the same color in the obtained image, a crystal grain orientation imaging picture is obtained, and the problems of increased production cost caused by the cost of purchasing electronic back scattering diffraction equipment or developing a phase dyeing technology, low electronic back scattering diffraction efficiency and poor universality of the phase dyeing technology are solved.
Description
Technical Field
The invention relates to an auxiliary device and an auxiliary method for acquiring a grain orientation imaging graph, and belongs to the technical field of alloy grain detection.
Background
The existing orientation imaging graph acquisition technology mainly comprises an Electron Back Scattering Diffraction (EBSD) technology and a phase dyeing technology, the electron back scattering diffraction technology detects the chrysanthemum pool patterns of each point and then draws an orientation imaging whole graph, the sample preparation step is complex and long in time, and the efficiency of detecting alloy crystal grains is low due to the fact that the area of the acquired crystal grain images is limited and long in time. The phase dyeing technology can only obtain an orientation imaging picture of a small amount of phases, is still in a research stage at present, and has less effective application.
An optical digital microscope is equipped in most laboratories, and if an electron back scattering diffraction technology is adopted, a scanning electron microscope and an electron back scattering diffraction probe device need to be purchased at the same time, and the whole set of device is about 100 thousands; if the phase dyeing technology is adopted, the development cost of the phase dyeing technology is about 10 ten thousand, different alloys need to be developed into different dyeing methods, and the universality is poor.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an auxiliary device for acquiring a grain-oriented imaging diagram.
The invention also provides a method for acquiring the grain orientation imaging graph.
The invention is realized by the following technical scheme.
The invention provides a grain orientation imaging graph acquisition auxiliary device, which comprises: the inner diameter of the three-layer annular cavity is reduced from bottom to top in sequence, the inner wall of the cavity at the lower layer is fixedly connected with the outer wall of the cavity at the middle layer, and the inner wall of the cavity at the middle layer is fixedly connected with the outer wall of the cavity at the upper layer;
the cavity comprises an outer side surface body, an inner side surface body, a top surface body and a bottom surface body which are sequentially fixed and sealed to form the cavity; the bottom surface body is made of white semitransparent materials, so that light rays of the lamp body are diffused through the bottom surface body to form an annular light source;
annular lamp bodies are arranged in the cavities of the three layers.
And the top edge of the cavity on the upper layer is provided with a threaded through hole, a screw rod is screwed in the threaded through hole, and the threaded through hole is screwed with the screw rod.
The two layers of the cavity are bonded or bound or welded and fixed.
The top surface body is provided with a through hole.
The lamp body is adhered or welded and fixed on the bottom surface of the top surface body of the cavity, and the lead of the lamp body is led out through the through hole on the top surface body of the cavity.
The light emitting of the lamp bodies in the upper, middle and lower annular cavities is blue, red and green respectively, and the brightness of the lamp bodies in the upper, middle and lower annular cavities can be adjusted.
The bottom surface body is made of white acrylic and PC semitransparent materials, and the outer side surface body 11, the inner side surface body 12 and the top surface body 13 are made of stainless steel and aluminum alloy materials.
The distance h1 between the inner surfaces of the top surface body and the bottom surface body is 10 mm; the height h6 of the inner side surface body of the lower cavity and the height h5 of the inner side surface body of the middle cavity are both 18 mm; the height h2 of the inner side surface of the cavity of the upper layer is 15 mm; the height h3 from the bottom surface of the inner side surface body of the cavity on the upper layer to the bottom surface of the inner side surface body of the cavity on the middle layer is 15mm, and the height h4 from the bottom surface of the inner side surface body of the cavity on the upper layer to the bottom surface of the inner side surface body of the cavity on the lower layer is 30 mm.
The inner and outer diameters r1 and r2 of the cavity of the upper layer are 34.00mm and 53.90mm, the inner and outer diameters r2 and r3 of the cavity of the middle layer are 54.00mm and 83.90mm, and the inner and outer diameters r3 and r4 of the cavity of the lower layer are 84mm and 124 mm.
A method for obtaining a grain orientation imaging image uses the auxiliary device for obtaining the grain orientation imaging image, and comprises the following steps:
the method comprises the following steps that firstly, a screw rod is screwed with a threaded through hole, and an auxiliary device for acquiring the grain orientation imaging picture is fixed at the peripheral end of a lens of an optical digital microscope through a cavity on the upper layer;
step two, irradiating blue, red and green light rays by lamp bodies in the upper, middle and lower annular cavities respectively, adjusting the lower layer green lamp to be brightest, and then sequentially weakening the brightness of the middle and upper layer lamps to enable the brightness of blue, red and green light reflected by the corroded crystal grains to be moderate, so that the crystal grains show colorful colors of blue-purple-red-yellow-green;
step three, after aggregation, an optical digital microscope acquires a crystal grain image, and the crystal grain image is colorful; half of the lamp-die-lens angle is equal to the die orientation angle, i.e. the die with orientation angle close to 11 ° reflects the brightness of the blue lamp to the maximum, thus being close to blue in the acquired image, and so on, 20 ° being close to red and 32 ° being close to green; the brightness of the annular lamps of the upper layer, the middle layer and the lower layer reflected by each crystal grain is different, the presented colors are different, the colors of the crystal grains with similar orientations are similar, namely, the crystal grain image acquired by the optical digital microscope is a crystal grain orientation imaging image.
The invention has the beneficial effects that: the light of the lamp body is diffused through the bottom surface body to form an annular surface light source, the light of the annular surface light source irradiates on the alloy crystal grain surface on the object placing table, and then the optical digital microscope acquires a large-area crystal grain orientation imaging picture. Because the brightness of the crystal grains of different orientations reflecting three layers of light sources with different colors is different, the crystal grains of different orientations have different colors and the crystal grains with the same orientation in the obtained image have the same color, a crystal grain orientation imaging picture is obtained.
Drawings
FIG. 1 is a schematic structural diagram of a front view section of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an image of the grain orientation obtained;
in the figure: 1-a cavity; 11-an outside flank body; 12-an inside flank body; 13-top surface; 14-a basal body; 3-lamp body.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
The invention relates to a device for acquiring a grain orientation imaging diagram, which comprises: the three-layer annular cavity body 1 comprises an upper layer of cavity body 1, a middle layer of cavity body 1 and a lower layer of cavity body 1 which are sequentially fixed in a stepped mode, wherein the inner diameter of the three-layer annular cavity body 1 is sequentially reduced from bottom to top, the inner wall of the lower layer of cavity body 1 is fixedly connected with the outer wall of the middle layer of cavity body 1, and the inner wall of the middle layer of cavity body 1 is fixedly connected with the outer wall;
the cavity 1 comprises an outer side surface body 11, an inner side surface body 12, a top surface body 13 and a bottom surface body 14 which are sequentially fixed and sealed to form the cavity; the bottom surface body 14 is made of white semitransparent material, so that the light of the lamp body is diffused by the bottom surface body 14 to form an annular light source;
annular COB packaged LED lamp bodies 3 are installed in the three layers of cavities 1, and the light emitted by the lamp bodies 3 in the upper, middle and lower layers of annular cavities 1 is blue, red and green respectively.
The working principle is as follows: go up annular cavity 1 and fix on optical digital microscope's camera lens periphery end, the distance that the basal body 14 of upper, middle and lower three-layer annular cavity 1 kept fixed apart from the crystalline grain face after the microscope gathers, the light of lamp body 3 is dispersed through basal body 14 and is formed the annular surface light source, the light of annular surface light source shines on putting the alloy crystalline grain face on the thing platform, and then optical digital microscope obtains the crystalline grain orientation image of large tracts of land. Because the brightness of the crystal grains in different orientations is different, the crystal grains in different orientations are different in color, the crystal grains in the same orientation are the same in color, and a crystal grain orientation imaging image is obtained. Because the crystal grain orientation imaging image acquisition auxiliary device is arranged on the optical digital microscope, and the cost of the crystal grain orientation imaging image acquisition auxiliary device is about 500 yuan (the cavity 1 is 300 yuan, the screw 2 is 5 yuan, the lamp body 3 is 60 yuan, the light modulator in the auxiliary accessory is 45 yuan, the power supply is 25 yuan, and the electric wire is 10 yuan), the problems of production cost increase caused by the cost of purchasing electronic back scattering diffraction equipment or developing a phase dyeing technology, low electronic back scattering diffraction efficiency and poor universality of a phase dyeing technology are solved.
The top edge of the upper cavity 1 is provided with a threaded through hole, a screw rod 2 is screwed in the threaded through hole, and the screw rod 2 and the threaded through hole are screwed to fix the device on the peripheral end of a lens of an optical digital microscope, wherein the optical digital microscope is an Olympus optical digital microscope DSX110 (the peripheral diameter of the lens is 33.90mm, and the working distance is 55 mm).
The two layers of the cavity 1 are bonded or bound or welded and fixed.
Be equipped with the through-hole on the top surface body 13, the through-hole diameter is 5mm, is convenient for discharge the gas after lamp body 3 heats the cavity, and atmospheric pressure in the balanced cavity is convenient for install lamp body 3 through the through-hole simultaneously.
The lamp body 3 is adhered or welded and fixed on the bottom surface of the top surface body 13 of the cavity 1, and the lead of the lamp body 3 is led out through the through hole on the top surface body 13 of the cavity 1.
The light emitting of the lamp bodies 3 in the upper, middle and lower annular cavities 1 is blue, red and green, and the brightness of the lamp bodies 3 in the upper, middle and lower annular cavities 1 can be adjusted.
The bottom surface body 14 is made of white acrylic and PC translucent materials, and the outer side surface body 11, the inner side surface body 12 and the top surface body 13 are made of stainless steel and aluminum alloy materials.
The distance h1 between the inner surfaces of the top surface body 13 and the bottom surface body 14 is 10 mm; the height h6 of the inner side surface body 12 of the lower layer cavity 1 and the height h5 of the inner side surface body 12 of the middle layer cavity 1 are both 18 mm; the height h2 of the inner side surface body 12 of the cavity 1 of the upper layer is 15 mm; the height h3 from the bottom surface of the inner side surface body 12 of the upper cavity 1 to the bottom surface of the inner side surface body 12 of the middle cavity 1 is 15mm, and the height h4 from the bottom surface of the inner side surface body 12 of the upper cavity 1 to the bottom surface of the inner side surface body 12 of the lower cavity 1 is 30 mm.
The inner and outer diameters r1 and r2 of the cavity 1 of the upper layer are 34.00mm and 53.90mm, the inner and outer diameters r2 and r3 of the cavity 1 of the middle layer are 54.00mm and 83.90mm, and the inner and outer diameters r3 and r4 of the cavity 1 of the lower layer are 84mm and 124 mm.
A method for obtaining a grain orientation imaging image uses the auxiliary device for obtaining the grain orientation imaging image, and comprises the following steps:
step one, the cavity 1 on the upper layer is fixed on the outer peripheral end of a lens of an optical digital microscope by screwing the screw 2 and the threaded through hole to obtain a grain orientation imaging picture auxiliary device;
step two, the lamp bodies 3 in the upper, middle and lower annular cavities 1 respectively irradiate blue, red and green light rays, the lower green light is firstly adjusted to be brightest, then the brightness of the middle and upper lights is sequentially weakened, so that the brightness of the blue, red and green light reflected by the corroded crystal grains is moderate, and the crystal grains are made to present the colorful colors of blue-purple-red-yellow-green;
step three, after aggregation, an optical digital microscope acquires a crystal grain image, and the crystal grain image is colorful; half of the lamp-die-lens angle is equal to the die orientation angle, i.e. the die with orientation angle close to 11 ° reflects the brightness of the blue lamp to the maximum, thus being close to blue in the acquired image, and so on, 20 ° being close to red and 32 ° being close to green; the brightness and the presented color of the annular lamps of the upper layer, the middle layer and the lower layer reflected by each crystal grain are different, the colors of the crystal grains with similar orientations are similar, namely, the crystal grain image acquired by an optical digital microscope is a crystal grain orientation imaging image, which is shown in fig. 3 below.
Claims (10)
1. An apparatus for assisting in acquiring a grain orientation image, comprising: the three-layer annular cavity (1) comprises an upper layer of cavity (1), a middle layer of cavity (1) and a lower layer of cavity (1) which are sequentially fixed in a stepped manner, wherein the inner diameter of the three-layer annular cavity (1) is sequentially reduced from bottom to top, the inner wall of the lower layer of cavity (1) is fixedly connected with the outer wall of the middle layer of cavity (1), and the inner wall of the middle layer of cavity (1) is fixedly connected with the outer wall of the upper layer of;
the cavity (1) comprises an outer side surface body (11), an inner side surface body (12), a top surface body (13) and a bottom surface body (14) which are sequentially fixed and sealed to form the cavity; the bottom surface body (14) is made of white semitransparent material, so that light rays of the lamp body are diffused through the bottom surface body to form an annular light source;
annular lamp bodies (3) are arranged in the three layers of cavities (1).
2. The die orientation imaging map acquisition aid of claim 1, wherein: the top edge of the upper cavity (1) is provided with a threaded through hole, a screw rod (2) is screwed in the threaded through hole, and the threaded through hole is screwed in the screw rod (2).
3. The die orientation imaging map acquisition aid of claim 1, wherein: the two layers of the cavity (1) are bonded or bound or welded and fixed.
4. The die orientation imaging map acquisition aid of claim 1, wherein: the top surface body (13) is provided with a through hole.
5. The die orientation imaging map acquisition aid of claim 4, wherein: the lamp body (3) is adhered or welded and fixed on the bottom surface of the top surface body (13) of the cavity (1), and a lead of the lamp body (3) is led out through a through hole in the top surface body (13) of the cavity (1).
6. The die orientation imaging map acquisition aid of claim 5, wherein: the light emitting of the lamp bodies (3) in the upper, middle and lower annular cavities (1) are blue, red and green respectively, and the brightness of the lamp bodies (3) in the upper, middle and lower annular cavities (1) can be adjusted.
7. The die orientation imaging map acquisition aid of claim 1, wherein: the bottom surface body (14) is made of white acrylic and PC semitransparent materials, and the outer side surface body (11), the inner side surface body (12) and the top surface body (13) are made of stainless steel and aluminum alloy materials.
8. The die orientation imaging map acquisition aid of claim 1, wherein: the distance h1 between the inner surfaces of the top surface body (13) and the bottom surface body (14) is 10 mm; the height h6 of the inner side surface body (12) of the lower layer cavity (1) and the height h5 of the inner side surface body (12) of the middle layer cavity (1) are both 18 mm; the height h2 of the inner side surface body (12) of the cavity (1) of the upper layer is 15 mm; the height h3 from the bottom surface of the inner side surface body (12) of the upper cavity (1) to the bottom surface of the inner side surface body (12) of the middle cavity (1) is 15mm, and the height h4 from the bottom surface of the inner side surface body (12) of the upper cavity (1) to the bottom surface of the inner side surface body (12) of the lower cavity (1) is 30 mm.
9. The die orientation imaging map acquisition aid of claim 1, wherein: the inner and outer diameters r1 and r2 of the cavity (1) of the upper layer are 34.00mm and 53.90mm; the inner and outer diameters r2 and r3 of the cavity (1) of the middle layer are 54.00mm and 83.90mm; the inner and outer diameters r3 and r4 of the cavity (1) of the lower layer are 84mm and 124 mm.
10. A method for obtaining a grain orientation imaging pattern, using the apparatus of any one of claims 1 to 9, comprising the steps of:
the method comprises the following steps that firstly, a screw (2) is screwed with a threaded through hole, and the grain orientation imaging graph acquisition auxiliary device is fixed at the peripheral end of a lens of the optical digital microscope through a cavity (1) on the upper layer;
step two, irradiating light rays with blue, red and green colors by lamp bodies (3) in the upper, middle and lower annular cavities (1), adjusting a lower layer green lamp to be brightest, and then sequentially weakening the brightness of the middle and upper layer lamps to enable the brightness of blue, red and green light reflected by the corroded crystal grains to be moderate, so that the crystal grains present the colorful color of blue-purple-red-yellow-green;
step three, after aggregation, an optical digital microscope acquires a crystal grain image, and the crystal grain image is colorful; half of the lamp-die-lens angle is equal to the die orientation angle, i.e. the die with orientation angle close to 11 ° reflects the brightness of the blue lamp to the maximum, thus being close to blue in the acquired image, and so on, 20 ° being close to red and 32 ° being close to green; the brightness of the annular lamps of the upper layer, the middle layer and the lower layer reflected by each crystal grain is different, the presented colors are different, the colors of the crystal grains with similar orientations are similar, namely, the crystal grain image acquired by the optical digital microscope is a crystal grain orientation imaging image.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114002117A (en) * | 2021-11-10 | 2022-02-01 | 中国航发贵州黎阳航空动力有限公司 | Detection method for low-power grain size of turbine disk forging |
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