CN106498400A - 17‑4ph钢用晶粒度腐蚀剂 - Google Patents

17‑4ph钢用晶粒度腐蚀剂 Download PDF

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CN106498400A
CN106498400A CN201611153125.3A CN201611153125A CN106498400A CN 106498400 A CN106498400 A CN 106498400A CN 201611153125 A CN201611153125 A CN 201611153125A CN 106498400 A CN106498400 A CN 106498400A
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caustic
content
grain size
steel grain
martensitic stain
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张小斌
李阳洋
王永强
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Shaanxi Hongyuan Aviation Forging Co Ltd
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Shaanxi Hongyuan Aviation Forging Co Ltd
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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/32—Polishing; Etching

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
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Abstract

本发明涉及17‑4PH沉淀硬化型马氏体不锈钢晶粒度的腐蚀剂，其成分配比：含量不小于40％的氢氟酸：含量65‑68％的硝酸：水＝1ml:2ml:98ml溶液。可以使17‑4Ph沉淀硬化型马氏体不锈钢在腐蚀后在光学显微镜下清除的显现晶界。

Description

17-4PH钢用晶粒度腐蚀剂
技术领域：本发明涉及17-4PH沉淀硬化型马氏体不锈钢晶粒度的腐蚀剂。
背景技术：17-4PH(0Cr17Ni4Cu4Nb)材料为一种马氏体沉淀硬化不锈钢，从固溶温度到室温时，组织转变为马氏体，由于时效处理后，马氏体基体沉淀出富铜相，因碳含量较低，耐腐蚀性和可焊性均优于马氏体不锈钢，一般腐蚀剂不能充分的显示其组织特征和组织细节，很难通过简单的腐蚀而显现晶界。采用常规腐蚀剂腐蚀出17-4PH高倍组织，晶界不易显现，需靠位相进行晶粒判定，对晶粒度的判定存在一定的偏差。通过电解的方法可以清晰的显现晶界，但成本较高。
发明内容：
本发明的目的：本发明要解决的技术问题是提供一种17-4PH钢用晶粒度腐蚀剂，能够清晰的显示马氏体组织晶界，从而在显微镜下观察17-4PH沉淀硬化型不锈钢晶粒度。
本发明的技术方案：一种17-4PH钢用晶粒度腐蚀剂，其成分配比：含量不小于40％的氢氟酸：含量65-68％的硝酸：水＝1ml:2ml:98ml溶液。
本发明的有益效果：本发明的腐蚀剂可以使17-4Ph沉淀硬化型马氏体不锈钢在腐蚀后在光学显微镜下清除的显现晶界。
附图说明：
图1为采用现有技术对17-4PH沉淀硬化型马氏体不锈钢进行腐蚀后的200倍照片。
图2为采用本专利技术对17-4PH沉淀硬化型马氏体不锈钢进行腐蚀后的200倍照片。
具体实施方式：
一、腐蚀剂的制备：将含量不小于40％的氢氟酸、含量65-68％的工业硝酸及水按照1:2:98的比例进行配制。
二、将磨光或抛光好的17-4PH沉淀硬化型马氏体不锈钢试样，清洗吹干后浸泡在腐蚀剂中，试样抛光面朝上浸泡1min-1.5min，当检测面由镜面状态腐蚀至钝化面后取出，使用酒精或热水对检测面进行清洗并吹干，用光学显微镜进行17-4PH沉淀硬化型马氏体不锈钢的金相组织观察，结果如图2。

Claims (1)

1.一种17-4PH钢用晶粒度腐蚀剂，其特征在于，其成分配比：含量不小于40％的氢氟酸：含量65-68％的硝酸：水＝1ml:2ml:98ml溶液。
CN201611153125.3A 2016-12-14 2016-12-14 17‑4ph钢用晶粒度腐蚀剂 Pending CN106498400A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005114626A (ja) * 2003-10-09 2005-04-28 Sanyo Special Steel Co Ltd オーステナイト結晶粒界顕出用の腐食液
CN102443803A (zh) * 2012-02-23 2012-05-09 中国船舶重工集团公司第七二五研究所 一种马氏体沉淀硬化不锈钢晶界的金相腐蚀方法
CN103695907A (zh) * 2013-12-16 2014-04-02 贵州安大航空锻造有限责任公司 显示Cr13型马氏体不锈钢晶粒度的腐蚀剂及其制备方法
CN103712844A (zh) * 2013-12-16 2014-04-09 贵州安大航空锻造有限责任公司 显示Cr13型马氏体不锈钢晶粒度的腐蚀方法
CN105628480A (zh) * 2015-12-21 2016-06-01 中车戚墅堰机车车辆工艺研究所有限公司 一种用于显示回火马氏体原始奥氏体晶粒边界的腐蚀剂及腐蚀方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005114626A (ja) * 2003-10-09 2005-04-28 Sanyo Special Steel Co Ltd オーステナイト結晶粒界顕出用の腐食液
CN102443803A (zh) * 2012-02-23 2012-05-09 中国船舶重工集团公司第七二五研究所 一种马氏体沉淀硬化不锈钢晶界的金相腐蚀方法
CN103695907A (zh) * 2013-12-16 2014-04-02 贵州安大航空锻造有限责任公司 显示Cr13型马氏体不锈钢晶粒度的腐蚀剂及其制备方法
CN103712844A (zh) * 2013-12-16 2014-04-09 贵州安大航空锻造有限责任公司 显示Cr13型马氏体不锈钢晶粒度的腐蚀方法
CN105628480A (zh) * 2015-12-21 2016-06-01 中车戚墅堰机车车辆工艺研究所有限公司 一种用于显示回火马氏体原始奥氏体晶粒边界的腐蚀剂及腐蚀方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王丽人: ""一种显示马氏体不锈钢组织的金相侵蚀剂"", 《青海科技》 *

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