CN102465296A - Metallographic corrosive of G3 alloy steel - Google Patents

Metallographic corrosive of G3 alloy steel Download PDF

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Publication number
CN102465296A
CN102465296A CN2010105506007A CN201010550600A CN102465296A CN 102465296 A CN102465296 A CN 102465296A CN 2010105506007 A CN2010105506007 A CN 2010105506007A CN 201010550600 A CN201010550600 A CN 201010550600A CN 102465296 A CN102465296 A CN 102465296A
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CN
China
Prior art keywords
metallographic
alloy
mass percent
alloy steel
percent concentration
Prior art date
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Pending
Application number
CN2010105506007A
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Chinese (zh)
Inventor
朱丽霞
瞿婷婷
仝珂
何小东
庄传晶
李金凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Petroleum Corp
CNPC Tubular Goods Research Institute
Original Assignee
China National Petroleum Corp
CNPC Tubular Goods Research Institute
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Filing date
Publication date
Application filed by China National Petroleum Corp, CNPC Tubular Goods Research Institute filed Critical China National Petroleum Corp
Priority to CN2010105506007A priority Critical patent/CN102465296A/en
Publication of CN102465296A publication Critical patent/CN102465296A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/28—Acidic compositions for etching iron group metals

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

The invention relates to metallographic corrosive which is particularly suitable to G3 alloy steel and comprises the following components by volume percentage: 4-5 parts of hydrochloric acid with the mass percentage concentration being 36 percent, 1 part of the nitric acid with the mass percentage concentration being 65 percent, 1 part of the acetic acid with the mass percentage concentration being 36 percent, and 1 part of the water; the metallographic corrosive disclosed by the invention is prepared by utilizing conventional chemical reagents, and the preparation method is simple; and the metallographic structure of the G3 alloy steel can be quickly and distinctly displayed by utilizing the metallographic corrosive.

Description

A kind of metallographic etching agent of G3 steel alloy
Technical field
The present invention relates to a kind of metallographic etching agent, be specially adapted to the metallographic etching agent of G3 steel alloy.
Background technology
Contain very high H in the hydrocarbon resources of peracidity fld 2S content contains CO simultaneously again 2Deng corrosive gases.Large-scale peracidity natural-gas field for these geologic framework complicacies, HTHP, high corrosive medium environment; Carbon steel, low alloy steel commonly used in the past; Or even Martensite Stainless Steel, duplex stainless steel etc. all can't satisfy request for utilization because of etching problem, and anti-sulphur pipe, anti-CO commonly used in the past 2Pipe and super 13Cr and some sophisticated coated layer anticorrosives are no longer suitable, need seek new material more reliably.Nickel-base alloy G3 becomes in the nickel-base alloy oil well pipe the most representative a kind of with its good mechanical property and resistance to corrosion.
In the G3 alloy research, the difference of the difference of material composition, processing thermal treatment process tends to obtain dissimilar metallographic structures, and the performance of final alloy is difference to some extent also.In order to obtain needed G3 alloy, need observe the metallographic structure of alloy, and the bonding properties test data, in time adjust composition, complete processing or the thermal treatment process etc. of alloy, its prerequisite is to adopt suitable etching reagent to realize the demonstration of tissue.Based on the literature survey of G3 alloy, find to have the research report of G3 steel alloy metallographic etching agent aspect as yet, brought very big difficulty for production and inspection body.
Summary of the invention
The metallographic etching agent that the purpose of this invention is to provide the metallographic structure of a kind of clear demonstration G3 steel alloy, this etching reagent preparation is simple, can make the quick clear demonstration of metallographic structure, thereby feasibility is provided for the controlling of production process and the examination and test of products of G3 alloy.
The metallographic etching agent of a kind of clear demonstration G3 steel alloy of the present invention metallographic structure: be made up of hydrochloric acid, nitric acid, acetate and water, the volume percent of its each component is:
4～5 parts of hydrochloric acid (mass percent concentration is 36%)
1 part in nitric acid (mass percent concentration is 65%)
1 part of acetate (mass percent concentration is 36%)
1 part in water
Preparing method of the present invention is: proportionally elder generation places beaker with water, adds hydrochloric acid, nitric acid, acetate then, mixes to get final product.
Advantage of the present invention and effect: metallographic etching agent of the present invention is conventional chemical reagent preparation, and compound method is simple, uses the metallographic structure that this metallographic etching reagent can quick, clear demonstration G3 steel alloy.
Embodiment
Embodiment 1
Earlier 5ml water is placed container, add 5ml acetate (mass percent concentration is 36%), 5ml nitric acid (mass percent concentration is 65%) and 20ml hydrochloric acid (mass percent concentration is 36%) then respectively, stir gently, mix with glass stick.After treating that etching reagent prepares, the G3 steel alloy sample after the polishing is immersed in the metallographic etching agent for preparing, sample metallographicobservation face is vertical with the etching reagent liquid level during immersion, and the etch time is 5～10 seconds.The intact sample that takes out of etch is rinsed well with absolute ethyl alcohol repeatedly, dries or dries up with hair dryer, the metallographic structure of the G3 alloy sample that promptly obtains observing.
Embodiment 2
Earlier 5ml water is placed container, add 5ml acetate (mass percent concentration is 36%), 5ml nitric acid (mass percent concentration is 65%) and 25ml hydrochloric acid (mass percent concentration is 36%) then respectively, stir gently, mix with glass stick.After treating that etching reagent prepares, the G3 steel alloy sample after the polishing is immersed in the metallographic etching agent for preparing, sample metallographicobservation face is vertical with the etching reagent liquid level during immersion, and the etch time is 5～10 seconds.The intact sample that takes out of etch is rinsed well with absolute ethyl alcohol repeatedly, dries or dries up with hair dryer, the metallographic structure of the G3 alloy sample that promptly obtains observing.
Embodiment 3
Earlier 10ml water is placed container, add 10ml acetate (mass percent concentration is 36%), 10ml nitric acid (mass percent concentration is 65%) and 50ml hydrochloric acid (mass percent concentration is 36%) then respectively, stir gently, mix with glass stick.After treating that etching reagent prepares, the G3 steel alloy sample after the polishing is immersed in the metallographic etching agent for preparing, sample metallographicobservation face is vertical with the etching reagent liquid level during immersion, and the etch time is 5～10 seconds.The intact sample that takes out of etch is rinsed well with absolute ethyl alcohol repeatedly, dries or dries up with hair dryer, the metallographic structure of the G3 alloy sample that promptly obtains observing.

Claims (1)

1. the metallographic etching agent of a G3 steel alloy, it is characterized in that: be made up of hydrochloric acid, nitric acid, acetate and water, the volume percent of its each component is:
Mass percent concentration is 4～5 parts of 36% hydrochloric acid
Mass percent concentration is 1 part in 65% a nitric acid
Mass percent concentration is 1 part of 36% a acetate
1 part in water.
CN2010105506007A 2010-11-18 2010-11-18 Metallographic corrosive of G3 alloy steel Pending CN102465296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105506007A CN102465296A (en) 2010-11-18 2010-11-18 Metallographic corrosive of G3 alloy steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105506007A CN102465296A (en) 2010-11-18 2010-11-18 Metallographic corrosive of G3 alloy steel

Publications (1)

Publication Number Publication Date
CN102465296A true CN102465296A (en) 2012-05-23

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Family Applications (1)

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CN2010105506007A Pending CN102465296A (en) 2010-11-18 2010-11-18 Metallographic corrosive of G3 alloy steel

Country Status (1)

Country Link
CN (1) CN102465296A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102888608A (en) * 2012-11-02 2013-01-23 上海锅炉厂有限公司 Corrosive for displaying austenitic stainless steel grain boundary of fine grains and method for preparing corrosive
CN104404520A (en) * 2014-11-18 2015-03-11 河北钢铁股份有限公司 Metallographic structure etching solution of high-nitrogen stainless steel and metallographic etching method
CN104513985A (en) * 2014-12-10 2015-04-15 金川集团股份有限公司 Nickel-chromium alloy metallographic corrosion solution and corrosion method
CN105018932A (en) * 2015-07-24 2015-11-04 金川集团股份有限公司 Ni80Cr20 alloy rolled plate metallographic corrosive liquid and preparation method and use method thereof
CN105755470A (en) * 2016-04-08 2016-07-13 金川集团股份有限公司 Metallographic etchant for cast and forged pure nickel and preparation method and corrosion method of metallographic etchant
CN106198161A (en) * 2016-06-24 2016-12-07 北京北冶功能材料有限公司 A kind of metallographic sample chemical polishing soln and using method thereof
CN108930037A (en) * 2017-05-22 2018-12-04 东友精细化工有限公司 Metal film etchant and the conductive pattern forming method for utilizing it
CN111662717A (en) * 2020-07-14 2020-09-15 北京航空航天大学宁波创新研究院 Metallographic corrosive liquid of bismuth selenide material and metallographic display method
CN113295503A (en) * 2021-05-28 2021-08-24 金川镍钴研究设计院有限责任公司 Chemical polishing etching solution for MBA-2 copper alloy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753817A (en) * 1971-07-16 1973-08-21 Driver Co W Method for processing wire
CN101532928A (en) * 2009-03-17 2009-09-16 北京科技大学 Method for preparing electroformed nickel metallographic sample and displaying constitution

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753817A (en) * 1971-07-16 1973-08-21 Driver Co W Method for processing wire
CN101532928A (en) * 2009-03-17 2009-09-16 北京科技大学 Method for preparing electroformed nickel metallographic sample and displaying constitution

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102888608A (en) * 2012-11-02 2013-01-23 上海锅炉厂有限公司 Corrosive for displaying austenitic stainless steel grain boundary of fine grains and method for preparing corrosive
CN102888608B (en) * 2012-11-02 2014-05-14 上海锅炉厂有限公司 Corrosive for displaying austenitic stainless steel grain boundary of fine grains and method for preparing corrosive
CN104404520A (en) * 2014-11-18 2015-03-11 河北钢铁股份有限公司 Metallographic structure etching solution of high-nitrogen stainless steel and metallographic etching method
CN104404520B (en) * 2014-11-18 2017-02-22 河北钢铁股份有限公司 Metallographic structure etching solution of high-nitrogen stainless steel and metallographic etching method
CN104513985A (en) * 2014-12-10 2015-04-15 金川集团股份有限公司 Nickel-chromium alloy metallographic corrosion solution and corrosion method
CN105018932A (en) * 2015-07-24 2015-11-04 金川集团股份有限公司 Ni80Cr20 alloy rolled plate metallographic corrosive liquid and preparation method and use method thereof
CN105755470A (en) * 2016-04-08 2016-07-13 金川集团股份有限公司 Metallographic etchant for cast and forged pure nickel and preparation method and corrosion method of metallographic etchant
CN106198161A (en) * 2016-06-24 2016-12-07 北京北冶功能材料有限公司 A kind of metallographic sample chemical polishing soln and using method thereof
CN108930037A (en) * 2017-05-22 2018-12-04 东友精细化工有限公司 Metal film etchant and the conductive pattern forming method for utilizing it
CN111662717A (en) * 2020-07-14 2020-09-15 北京航空航天大学宁波创新研究院 Metallographic corrosive liquid of bismuth selenide material and metallographic display method
CN111662717B (en) * 2020-07-14 2021-08-31 北京航空航天大学宁波创新研究院 Metallographic corrosive liquid of bismuth selenide material and metallographic display method
CN113295503A (en) * 2021-05-28 2021-08-24 金川镍钴研究设计院有限责任公司 Chemical polishing etching solution for MBA-2 copper alloy

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Application publication date: 20120523