CN102419275A - Method for observing metallographic structure of molybdenum-niobium alloy - Google Patents
Method for observing metallographic structure of molybdenum-niobium alloy Download PDFInfo
- Publication number
- CN102419275A CN102419275A CN2011102312610A CN201110231261A CN102419275A CN 102419275 A CN102419275 A CN 102419275A CN 2011102312610 A CN2011102312610 A CN 2011102312610A CN 201110231261 A CN201110231261 A CN 201110231261A CN 102419275 A CN102419275 A CN 102419275A
- Authority
- CN
- China
- Prior art keywords
- sample
- niobium alloy
- metallographic structure
- metallographic
- observation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a method for observing a metallographic structure of a molybdenum-niobium alloy. The method is characterized by comprising the following steps: after grinding a sample on a grinding machine and then polishing the sample on a polishing machine, carrying out attrition on the observed surface of the sample by using a mixed solution of potassium ferricyanides and sodium hydroxides firstly; then, eroding the sample by using a reagent containing sulfuric acid, nitric acid, hydrochloric acid and hydrofluoric acid, carrying out metallographic structure observation on the sample. By using the method disclosed by the invention, the metallographic structure of a molybdenum-niobium alloy can be observed clearly. The method is easy to operate without using any special devices.
Description
Technical field
The observation procedure of a kind of molybdenum niobium alloy metallographic structure relates to the sample treatment in a kind of molybdenum niobium alloy metallographic structure procedure for displaying.
Background technology
The molybdenum niobium alloy is to use wider target at present.In order to study the performance of molybdenum niobium alloy, need to observe the microstructure and the grain size of molybdenum niobium alloy, whether even to confirm crystal grain, thus improvement each item technology.In existing molybdenum niobium alloy document, because the problem of preparation method and erosion is difficult to obtain microstructure clearly.Be difficult for polishing during like metallographic sample preparation, single etchant also is difficult to let the molybdenum niobium alloy demonstrate real tissue, and these problems all make us can not obtain desirable molybdenum niobium alloy metallographic structure.
Summary of the invention
The object of the invention is exactly the deficiency that exists to above-mentioned prior art; Provide a kind of and can effectively solve the problem that existing molybdenum niobium alloy metallographic sample is difficult to obtain clear tissue, make the observation procedure of the apparent molybdenum niobium alloy of molybdenum niobium alloy metallographic structure metallographic structure.
The objective of the invention is to realize through following technical scheme.
The observation procedure of a kind of molybdenum niobium alloy metallographic structure is characterized in that the step of its observation process comprises:
(1) with plane of vision of observation sample machining;
(2) adopt metallographic waterproof abrasive paper to grind the metallographic plane of vision that processes;
(3) the metallographic plane of vision is carried out mechanical buffing, make it as bright as a sixpence;
(4) lose the metallographic sample plane of vision with comprising that the potassium ferricyanide and NaOH mixed solution are wiped, make plane of vision be light blue;
(5) reagent with sulfuric acid+nitric acid+hydrochloric acid+hydrofluorite corrodes, and makes specimen surface be silver gray, carries out metallographic structure observation then.
The observation procedure of a kind of molybdenum niobium alloy of the present invention metallographic structure is characterized in that described step (2) uses 150 to sample successively on metallographic grinder
#, 700
#, 1000
#Metallographic waterproof abrasive paper grind step by step, when changing grit paper each time and grind, grind direction and will change 90 °, to guarantee the eliminating last vestige that grinds fully; Sample wash drop grain after the grinding.
The observation procedure of a kind of molybdenum niobium alloy of the present invention metallographic structure is characterized in that described step (3) polishes ground sample earlier on buffing machine, up to the sample surfaces no marking with pull, buffing machine is 2.5 μ m Buddha's warrior attendant powder and saturated Cr
2O
3Solution.
The observation procedure of a kind of molybdenum niobium alloy of the present invention metallographic structure, the sample that mechanical buffing is good uses volume ratio to be the potassium ferricyanide to it is characterized in that described step (4): NaOH=1-3:2 solution is wiped erosion, and wiping the erosion time is 8-20s.
The observation procedure of a kind of molybdenum niobium alloy of the present invention metallographic structure is characterized in that described step (5) is H to selecting volume ratio for use through the sample of step (4)
2SO
4: HNO
3: HF:HCl=1-2:1-1.5:1-1.5:0.5-1 solution corrodes, and erosion time is 2-6s.
The observation procedure of a kind of molybdenum niobium alloy of the present invention metallographic structure, the stock removal foot can guarantee to demonstrate true tissue.Selecting for use the potassium ferricyanide and NaOH mixed solution to wipe that erosion can be avoided directly corroding with acid solution and the excessive erosion that causes reduces the hole, hole that forms because of excessive erosion, is H and select volume ratio for use
2SO
4: HNO
3: the solution of HF:HCl=1-2:1-1.5:1-1.5:0.5-1 corrodes can avoid the oxidation of sample inspection surface to form oxide film.The method easy operating can clearly be observed out the metallographic structure of niobium molybdenum niobium alloy, does not need any specific installation.The present invention obtains good effect in the preparation of molybdenum niobium alloy metallographic sample.
Description of drawings
Fig. 1 is the molybdenum niobium alloy metallographic structure figure of embodiment 1, enlargement factor 100 *;
Fig. 2 is the molybdenum niobium alloy metallographic structure figure of embodiment 2, enlargement factor 100 *;
Fig. 3 is the molybdenum niobium alloy metallographic structure figure of embodiment 3, enlargement factor 100 *.
Embodiment
The observation procedure of a kind of molybdenum niobium alloy metallographic structure, its process at first earlier use 150 to sample successively on muller
#, 700
#, 1000
#Metallographic waterproof abrasive paper grind step by step, the sample wash drop grain after the grinding, ground sample polishes on buffing machine, polishing back uses earlier volume ratio to be that the solution of the potassium ferricyanide: NaOH=1-3:2 wipes erosion to sample, uses volume ratio to be H then
2SO
4: HNO
3: HF:HCl=1-2:1-1.5:1-1.5:0.5-1 solution corrodes.Adopt the inventive method can observe the metallographic structure of molybdenum niobium alloy clearly.The potassium ferricyanide mass percent concentration of being selected for use is 10%; The NaOH mass percent concentration of being selected for use is 10%; The concentrated sulphuric acid mass percent concentration of being selected for use is 95%-98%; The nitric acid mass percent concentration of being selected for use is 65%-68%, and the hydrochloric acid mass percent concentration of being selected for use is 36%-38%, and the hydrofluorite mass percent concentration of being selected for use is 40%.
Embodiment 1
The metallographic structure observation procedure of the molybdenum niobium alloy plate of 10mm * 10mm.It is characterized in that sample is used 150 earlier successively on muller
#, 700
#, 1000
#Metallographic waterproof abrasive paper grind step by step, the sample wash drop grain after the grinding, ground sample polishes on buffing machine, polishing back uses earlier volume ratio to be that the solution of the potassium ferricyanide: NaOH=1:2 wipes erosion to sample, wipes and loses 8s, uses volume ratio to be H then
2SO
4: HNO
3: HF:HCl=1:1:1:0.5 solution corrodes 2s.
Embodiment 2
The metallographic structure observation procedure of the molybdenum niobium alloy plate of 10mm * 10mm.It is characterized in that sample is used 150 earlier successively on muller
#, 700
#, 1000
#Metallographic waterproof abrasive paper grind step by step, the sample wash drop grain after the grinding, ground sample polishes on buffing machine, polishing back uses earlier volume ratio to be that the solution of the potassium ferricyanide: NaOH=2:2 wipes erosion to sample, wipes and loses 14s, uses volume ratio to be H then
2SO
4: HNO
3: HF:HCl=2:1.5:1.5:0.5 solution corrodes 4s.
Embodiment 3
The metallographic structure observation procedure of the molybdenum niobium alloy plate of 10mm * 10mm.It is characterized in that sample is used 150 earlier successively on muller
#, 700
#, 1000
#Metallographic waterproof abrasive paper grind step by step, the sample wash drop grain after the grinding, ground sample polishes on buffing machine, polishing back uses earlier volume ratio to be that the solution of the potassium ferricyanide: NaOH=3:2 wipes erosion to sample, wipes and loses 20s, uses volume ratio to be H then
2SO
4: HNO
3: HF:HCl=1:1:1:1 solution corrodes 6s.
Claims (6)
1. the observation procedure of molybdenum niobium alloy metallographic structure is characterized in that the step of its observation process comprises:
(1) with plane of vision of observation sample machining;
(2) adopt metallographic waterproof abrasive paper to grind the metallographic plane of vision that processes;
(3) the metallographic plane of vision is carried out mechanical buffing, make specimen surface bright like mirror;
(4) with the mixed solution of the potassium ferricyanide and NaOH erosion is wiped on sample observation surface, make inspection surface be light blue;
(5) reagent with sulfuric acid+nitric acid+hydrochloric acid+hydrofluorite corrodes, and makes sample observation surface be silver gray, carries out metallographic structure observation then.
2. the observation procedure of a kind of molybdenum niobium alloy according to claim 1 metallographic structure is characterized in that described step (2) uses 150 to sample successively on metallographic grinder
#, 700
#, 1000
#Metallographic waterproof abrasive paper grind step by step, when changing grit paper each time and grind, grind direction and will change 90 °, to guarantee the eliminating last vestige that grinds fully; Sample wash drop grain after the grinding.
3. the observation procedure of a kind of molybdenum niobium alloy according to claim 1 metallographic structure; It is characterized in that described step (3) polishes ground sample earlier on buffing machine; Up to the sample surfaces no marking with pull, buffing machine is 2.5 μ m Buddha's warrior attendant powder and saturated Cr
2O
3Solution.
4. the observation procedure of a kind of molybdenum niobium alloy according to claim 1 metallographic structure; The sample observation surface that mechanical buffing is good uses volume ratio to be the potassium ferricyanide to it is characterized in that described step (4): NaOH=1-3:2 solution is wiped erosion, and wiping the erosion time is 8-20s.
5. the observation procedure of a kind of molybdenum niobium alloy according to claim 1 metallographic structure is characterized in that to select volume ratio for use be H to described step (5) to wiping the sample lost
2SO
4: HNO
3: HF:HCl=1-2:1-1.5:1-1.5:0.5-1 solution corrodes, and erosion time is 2-6s.
6. the observation procedure of a kind of molybdenum niobium alloy according to claim 1 metallographic structure; It is characterized in that the potassium ferricyanide mass percent concentration of being selected for use is 10%; The NaOH mass percent concentration of being selected for use is 10%, and the concentrated sulphuric acid mass percent concentration of being selected for use is 95%-98%, and the nitric acid mass percent concentration of being selected for use is 65%-68%; The hydrochloric acid mass percent concentration of being selected for use is 36%-38%, and the hydrofluorite mass percent concentration of being selected for use is 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102312610A CN102419275A (en) | 2011-08-12 | 2011-08-12 | Method for observing metallographic structure of molybdenum-niobium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102312610A CN102419275A (en) | 2011-08-12 | 2011-08-12 | Method for observing metallographic structure of molybdenum-niobium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102419275A true CN102419275A (en) | 2012-04-18 |
Family
ID=45943790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102312610A Pending CN102419275A (en) | 2011-08-12 | 2011-08-12 | Method for observing metallographic structure of molybdenum-niobium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102419275A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721594A (en) * | 2012-06-29 | 2012-10-10 | 西部金属材料股份有限公司 | Method for observing tungsten-ferro-nickel alloy metallographic structure |
| CN103398889A (en) * | 2013-08-21 | 2013-11-20 | 南京金创有色金属科技发展有限公司 | Microscopic structure display method of duplex stainless steel-carbon steel composite board |
| CN103983499A (en) * | 2014-05-12 | 2014-08-13 | 太原科技大学 | Method for observing inner shearing zone of zirconium base amorphous alloy |
| CN104422611A (en) * | 2013-09-02 | 2015-03-18 | 宁波江丰电子材料股份有限公司 | Metallurgical corrosive and metallurgical structure display method |
| CN105510105A (en) * | 2015-12-26 | 2016-04-20 | 山东泰山钢铁集团有限公司 | Method for rapidly determining phase content of double-phase stainless steel by using metallographic dyeing and software |
| CN110983338A (en) * | 2019-12-25 | 2020-04-10 | 爱发科电子材料（苏州）有限公司 | Metallographic corrosive agent and corrosion method for molybdenum or molybdenum alloy and display method of metallographic structure |
| CN111074279A (en) * | 2018-10-22 | 2020-04-28 | 宁波江丰电子材料股份有限公司 | Target corrosive agent and application method thereof |
| CN114526978A (en) * | 2022-02-25 | 2022-05-24 | 中国工程物理研究院材料研究所 | Metallographic corrosive liquid of vanadium alloy and preparation method of metallographic sample of vanadium alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354326A (en) * | 2008-09-18 | 2009-01-28 | 西部金属材料股份有限公司 | Method for observing tungsten material product microscopic structure |
| CN102042985A (en) * | 2010-10-22 | 2011-05-04 | 西部金属材料股份有限公司 | Observation method of Ti-Ni alloy metallographic structure |
-
2011
- 2011-08-12 CN CN2011102312610A patent/CN102419275A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354326A (en) * | 2008-09-18 | 2009-01-28 | 西部金属材料股份有限公司 | Method for observing tungsten material product microscopic structure |
| CN102042985A (en) * | 2010-10-22 | 2011-05-04 | 西部金属材料股份有限公司 | Observation method of Ti-Ni alloy metallographic structure |
Non-Patent Citations (2)
| Title |
|---|
| 中国机械工程学会热处理专业学会《热处理手册》编委会: "《热处理手册》", 31 October 1992, 机械工业出版社 * |
| 岗特.裴卓: "《金相浸蚀手册》", 31 August 1982, 科学普及出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721594A (en) * | 2012-06-29 | 2012-10-10 | 西部金属材料股份有限公司 | Method for observing tungsten-ferro-nickel alloy metallographic structure |
| CN103398889A (en) * | 2013-08-21 | 2013-11-20 | 南京金创有色金属科技发展有限公司 | Microscopic structure display method of duplex stainless steel-carbon steel composite board |
| CN104422611A (en) * | 2013-09-02 | 2015-03-18 | 宁波江丰电子材料股份有限公司 | Metallurgical corrosive and metallurgical structure display method |
| CN103983499A (en) * | 2014-05-12 | 2014-08-13 | 太原科技大学 | Method for observing inner shearing zone of zirconium base amorphous alloy |
| CN105510105A (en) * | 2015-12-26 | 2016-04-20 | 山东泰山钢铁集团有限公司 | Method for rapidly determining phase content of double-phase stainless steel by using metallographic dyeing and software |
| CN111074279A (en) * | 2018-10-22 | 2020-04-28 | 宁波江丰电子材料股份有限公司 | Target corrosive agent and application method thereof |
| CN110983338A (en) * | 2019-12-25 | 2020-04-10 | 爱发科电子材料（苏州）有限公司 | Metallographic corrosive agent and corrosion method for molybdenum or molybdenum alloy and display method of metallographic structure |
| CN114526978A (en) * | 2022-02-25 | 2022-05-24 | 中国工程物理研究院材料研究所 | Metallographic corrosive liquid of vanadium alloy and preparation method of metallographic sample of vanadium alloy |
| CN114526978B (en) * | 2022-02-25 | 2024-01-02 | 中国工程物理研究院材料研究所 | Metallographic corrosive liquid of vanadium alloy and preparation method of metallographic sample of vanadium alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102419275A (en) | Method for observing metallographic structure of molybdenum-niobium alloy | |
| CN102331363A (en) | Method for observing metallographic structure of niobium-titanium alloy | |
| CN102042985B (en) | Observation method of Ti-Ni alloy metallographic structure | |
| CN1967197A (en) | Method for preparing Al-Si-Cu-based alloy metallographic sample and displaying tissue thereof | |
| CN106637212B (en) | Macrostructure's display methods of metallographic etching agent and alloy | |
| CN101354326B (en) | Method for observing tungsten material product microscopic structure | |
| CN101738340B (en) | Method for preparing sample showing metallurgical structure of tantalum-tungsten alloy | |
| CN102383130B (en) | Observation method for metallographic structures of amorphous alloys | |
| CN102890027A (en) | Metallographic structure display method of interstitial free (IF) steel cold-rolled sheet containing titanium (Ti) | |
| CN103512791B (en) | A kind of grain boundary corrosion method of high niobium beta-titanium alloy | |
| CN103175726A (en) | Metallographic corrosion method for clearly displaying original austenite grain boundary of NiCrMoV type rotor steel | |
| CN103993319A (en) | Corrosive agent and display method for macrostructure of aluminum and aluminum copper alloys | |
| CN103033403B (en) | A kind of preparation method of thin-sheet metal film test sample | |
| CN102706721A (en) | Observation method of niobium-tungsten-molybdenum alloy metallographic structure | |
| CN101587033A (en) | A kind of method of displaying austenite structure quickly and easily | |
| CN104198257B (en) | The preparation method of aluminium alloy metallographic specimen | |
| CN101699253A (en) | Method for displaying metallographic structure of target | |
| CN103852358B (en) | The display packing of a kind of ultra low carbon IF thin plate metallographic structure | |
| CN110983338A (en) | Metallographic corrosive agent and corrosion method for molybdenum or molybdenum alloy and display method of metallographic structure | |
| CN104422611A (en) | Metallurgical corrosive and metallurgical structure display method | |
| CN103063492A (en) | Method for battery grid Pb-Ca alloy metallographic sample preparation and structure demonstration | |
| CN101984334B (en) | Method for displaying metallurgical structure of interstitial-free steel by ultralow-carbon cold roll annealing | |
| CN104480470A (en) | Titanium metal sample metallurgical etching solution and etching method | |
| CN101532928B (en) | Method for preparing electroformed nickel metallographic sample and displaying constitution | |
| CN103335877A (en) | Method for preparing metal thin film metallographic structure sample |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |