CN1308227A - Display method for metallurgical structure of titanium alloy - Google Patents
Display method for metallurgical structure of titanium alloy Download PDFInfo
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- CN1308227A CN1308227A CN 00136153 CN00136153A CN1308227A CN 1308227 A CN1308227 A CN 1308227A CN 00136153 CN00136153 CN 00136153 CN 00136153 A CN00136153 A CN 00136153A CN 1308227 A CN1308227 A CN 1308227A
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Abstract
The present invention relates to a method for displaying metallurgical structure of metal alloy, in particular it is a method for displaying colour metallurgical structure of titanium alloy. It is characterized by using the solution containing lactic acid, propanetriol, nitric acid, hydrochloric acid and fluohydric acid as filming agent. As compared with other processes said invention raises the discrimination rate of microstructure and possesses clear and beautiful picture. Said invention method is simple and easy to implement, and has no need of special equipment.
Description
The present invention relates to a kind of display packing of metallurgical structure of metal alloy method for displaying metallographic structure, particularly titanium alloy.
The display packing that is used for the metallurgical structure of metal at present, great majority adopt heated oxide method and electro-etching method, these methods are at present at iron and steel, stainless steel, copper, aluminium, the metallographic of metal materials such as nickel is effectively used in showing, but said method is in the metallurgical structure of titanium alloy shows, in view of the characteristic that titanium alloy had, conventional visualizingre agent often can not show their complete crystal boundaries and crystal grain details effectively, also usually because be difficult to grasp the etch degree, make reagent surface coverage one deck not meet the film of optical microscope requirement, covered real tissue, the microstructure that shows single-phase titanium alloy is much more difficult more than two titanium alloys, utilize chemical dyeing method can improve the contrast of microstructure and mutually distinguishing ability, but existing colour metallograpy method is to so far, be difficult to titanium alloy, particularly the demonstration of single-phase titanium alloy.
In order to overcome in the prior art, the deficiency that exists in metallurgical structure of titanium alloy shows provides a kind of method that can show the single-phase titanium alloy metallurgical structure effectively to purpose of the present invention exactly.
The objective of the invention is to be achieved through the following technical solutions.
A kind of display packing of metallurgical structure of titanium alloy, comprise conventional sample making course, it is characterized in that the metallographic structure of adopting the percent by volume of each component of membrane reagent and consist of 9%～13% lactic acid, 10%～15% glycerine, 0.1%～1.3% nitric acid, 0.2～1.2% hydrochloric acid, 0.4%～1% hydrofluorite, surplus is a water.
Method of the present invention utilizes the long-pending film of chemical precipitation to show the microstructure of single-phase titanium alloy, under common light field mode, can obtain the metallographic structure of the complete clear wash rice of crystal boundary, intercrystalline position to obvious difference, the inner abundant information exquisiteness of crystal grain, it is good to obtain level under polarized light, bright metallographic structure.
This method is compared with conventional etch method, has improved the resolution of microstructure largely, and picture is clear attractive in appearance, compares with heated oxide method, anodizing and electro-etching method, and method of the present invention is simple, without any need for specific installation.
Description of drawings.
Fig. 1 is Ti-4Al-5.5Mo-4.5V-3.5Cr-1.8Zr alloy aging attitude 200x for the composition that adopts method of the present invention to obtain
Fig. 2 is Ti-5Al-2.5Sn alloy annealed condition Figure 100 x for the composition that adopts method of the present invention to obtain
Fig. 3 is Ti-4.5Al-2V alloy welding attitude 200x for the composition that adopts method acquisition of the present invention
Fig. 4 is Ti-2Zr-1Mo alloy annealed state 100x for the composition that adopts method of the present invention to obtain
Fig. 5 is Ti-2.5Cu alloy annealed state 200x for the composition that adopts method of the present invention to obtain
Fig. 6 is Ti-3Al-2.5V alloy annealed state 200x for the composition that adopts method of the present invention to obtain
Fig. 7 is Ti-3.5Al-2Zr-1Mo alloy aging attitude 100x for the composition that adopts method of the present invention to obtain
Fig. 8 is Ti-4Al-5.5Mo-4.5V-3.5Cr-1.8Zr alloy aging attitude 1000x for the composition that adopts method of the present invention to obtain
Fig. 9 is Ti-5Al-2.5Sn alloy annealed state 100x for the composition that adopts method of the present invention to obtain
Figure 10 is Ti-5Al-2.5Sn alloy annealed state 100x for the composition that adopts method of the present invention to obtain
Figure 11 is Ti-3.5Al-2Zr-1Mo alloy welding attitude 200x for the composition that adopts method acquisition of the present invention
Figure 12 is Ti-3.5Al-2Zr-1Mo alloy annealed state 200x for the composition that adopts method of the present invention to obtain
The invention will be further described below in conjunction with example.
A kind of display packing of metallurgical structure of titanium alloy, comprise conventional sample making course, it is characterized in that adopting the metallographic structure percent by volume of each component of membrane reagent consist of 9%～13% lactic acid, 10%～15% glycerine, 0.1%～1.3% nitric acid, 0.2～1.2% hydrochloric acid, 0.4%～1% hydrofluorite, surplus is a water.The method that the present invention adopts is according to chemogenic deposit mechanism, employing is good to sample polished surface wellability, and be easy to control the reagent of shape film speed, sample order preparation routinely, sample polishing table finishes dry after clear water washes down, at room temperature carrying out membrane operations, sample will place solution fully, the polished surface level up, the observation surface color changes, and until generating one deck light color film, immediately sample is immersed the clear water cessation reaction then, need fully washing at last, alcohol carries out conventional metallographic observation after washing the back hot blast drying.This method is compared with conventional etch method, has improved the resolution of microstructure and the sight of metallograph largely, compares with anodizing and electro-etching method with the heated oxide method, and method is simple for this, without any need for specific installation.
Embodiment 1
With composition is that Ti-4Al-5.5Mo-4.5V-3.5Cr-1.8Zr alloy aging attitude sample consists of 9% lactic acid, 15% glycerine, 0.7% nitric acid, 0.5% hydrochloric acid, 1% hydrofluorite through percent by volume, surplus be water film film, the alloy aging attitude 200x resolution height that shows, clear image is attractive in appearance.
Embodiment 2
With composition is that Ti-5Al-2.5Sn alloy annealed condition assay maps consists of 13% lactic acid, 10% glycerine, 0.1% nitric acid, 0.7% hydrochloric acid, 0.6% hydrofluorite through percent by volume, surplus be water film film, the alloy annealed state 100x resolution height that shows, clear image is attractive in appearance.
Embodiment 3
Composition is consisted of 9% lactic acid, 10% glycerine, 0.3% nitric acid, 0.6% hydrochloric acid, 0.6% hydrofluorite for Ti-4.5Al-2V alloy welding attitude assay maps through percent by volume, surplus be water film film, the welding attitude 200x resolution height of the alloy that shows, clear image is attractive in appearance.
Embodiment 4
With composition is that Ti-2Zr-1Mo alloy annealed state assay maps consists of 10% lactic acid, 10% glycerine, 0.1% nitric acid, 1.2% hydrochloric acid, 0.8% hydrofluorite through percent by volume, surplus be water film film, the annealed state 100x resolution height of the alloy that shows, clear image is attractive in appearance.
Embodiment 5
With composition is that Ti-2.5Cu alloy annealed state assay maps consists of 13% lactic acid, 10% glycerine, 0.2% nitric acid, 0.6% hydrochloric acid, 0.4% hydrofluorite through percent by volume, surplus be water film film, the annealed state 200x resolution height of the alloy that shows, clear image is attractive in appearance.
Embodiment 6
With composition is that Ti-3Al-2.5V alloy annealed state assay maps consists of 9% lactic acid, 10% glycerine, 0.5% nitric acid, 1.1% hydrochloric acid, 0.9% hydrofluorite through percent by volume, surplus be water film film, the annealed state 200x resolution height of the alloy that shows, clear image is attractive in appearance.
Embodiment 7
Composition is consisted of 10% lactic acid, 10% glycerine, 0.3% nitric acid, 1% hydrochloric acid, 0.7% hydrofluorite for Ti-3.5Al-2Zr-1Mo alloy welding attitude assay maps through percent by volume, surplus be water film film, the welding attitude 100x of the alloy that shows, the resolution height, clear image is attractive in appearance.
Embodiment 8
With composition is that Ti-4Al-5.5Mo-4.5V-3.5Cr-1.8Zr alloy aging attitude assay maps consists of 10% lactic acid, 15% glycerine, 1.3% nitric acid, 0.7% hydrochloric acid, 1% hydrofluorite through percent by volume, surplus be water film film, the aging state 1000x of the alloy that shows, the resolution height, clear image is attractive in appearance.
Embodiment 9
With composition is that Ti-5Al-2.5Sn alloy annealed state assay maps consists of 13% lactic acid, 10% glycerine, 0.1% nitric acid, 0.9% hydrochloric acid, 0.8% hydrofluorite through percent by volume, surplus be water film film, the annealed state 100x of the alloy that shows, the resolution height, clear image is attractive in appearance.
Embodiment 10
With composition is that Ti-5Al-2.5Sn alloy annealed state sample consists of 13% lactic acid, 10% glycerine, 0.1% nitric acid, 0.7% hydrochloric acid, 1% hydrofluorite through percent by volume, surplus be water film film, the annealed state 100x of the alloy that shows, the resolution height, clear image is attractive in appearance.
Embodiment 11
Composition is consisted of 10% lactic acid, 10% glycerine, 0.3% nitric acid, 1% hydrochloric acid, 0.7% hydrofluorite for Ti-3.5Al-2Zr-1Mo alloy welding attitude sample through percent by volume, surplus be water film film, the welding attitude 200x of the alloy that shows, the resolution height, clear image is attractive in appearance.
Embodiment 12
With composition is that Ti-3.5Al-2Zr-1Mo alloy annealed state sample consists of 12% lactic acid, 12% glycerine, 0.2% nitric acid, 1% hydrochloric acid, 1% hydrofluorite through percent by volume, surplus be water film film, the annealed state 200x of the alloy that shows, the resolution height, clear image is attractive in appearance.
Claims (1)
1. the display packing of a metallurgical structure of titanium alloy, comprise conventional sample making course, it is characterized in that the metallographic structure of adopting the percent by volume of each component of membrane reagent and consist of 9%～13% lactic acid, 10%～15% glycerine, 0.1%～1.3% nitric acid, 0.2～1.2% hydrochloric acid, 0.4%～1% hydrofluorite, surplus is a water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136153 CN1100984C (en) | 2000-12-26 | 2000-12-26 | Display method for metallurgical structure of titanium alloy |
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|---|---|---|---|
| CN 00136153 CN1100984C (en) | 2000-12-26 | 2000-12-26 | Display method for metallurgical structure of titanium alloy |
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| CN1308227A true CN1308227A (en) | 2001-08-15 |
| CN1100984C CN1100984C (en) | 2003-02-05 |
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| CN 00136153 Expired - Fee Related CN1100984C (en) | 2000-12-26 | 2000-12-26 | Display method for metallurgical structure of titanium alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072834A (en) * | 2010-11-02 | 2011-05-25 | 西部金属材料股份有限公司 | Method for observing metallographic structure on titanium/steel explosion welding interface |
| CN101413140B (en) * | 2007-10-17 | 2012-08-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Blue anodic oxidation process for titanium alloy |
| CN104006994A (en) * | 2014-05-26 | 2014-08-27 | 上海大学 | Method for displaying color metallographic tissues of pure aluminum |
-
2000
- 2000-12-26 CN CN 00136153 patent/CN1100984C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413140B (en) * | 2007-10-17 | 2012-08-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Blue anodic oxidation process for titanium alloy |
| CN102072834A (en) * | 2010-11-02 | 2011-05-25 | 西部金属材料股份有限公司 | Method for observing metallographic structure on titanium/steel explosion welding interface |
| CN104006994A (en) * | 2014-05-26 | 2014-08-27 | 上海大学 | Method for displaying color metallographic tissues of pure aluminum |
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| Publication number | Publication date |
|---|---|
| CN1100984C (en) | 2003-02-05 |
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