| 航空用PH13-8Mo沉淀硬化不锈钢晶粒度优化显示法 |
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| 引用本文： | 何军,朱苓,鲍晶,朱凯,罗庆. 航空用PH13-8Mo沉淀硬化不锈钢晶粒度优化显示法[J]. 理化检验(物理分册), 2019, 55(8): 533-537,541 |
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| 作者姓名： | 何军 朱苓 鲍晶 朱凯 罗庆 |
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| 作者单位： | 中航工业成都飞机工业(集团)有限责任公司,成都,610091;中航工业成都飞机工业(集团)有限责任公司,成都,610091;中航工业成都飞机工业(集团)有限责任公司,成都,610091;中航工业成都飞机工业(集团)有限责任公司,成都,610091;中航工业成都飞机工业(集团)有限责任公司,成都,610091 |
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| 摘 要： | 航空用PH13-8Mo沉淀硬化不锈钢试样经直接淬硬法热处理后采用常规的不锈钢浸蚀剂不能有效显示晶界。分别采用氧化法与直接淬硬法对试样热处理,其中直接淬硬法热处理后,采用多种浸蚀剂进行浸蚀,然后进行晶粒度评定。结果表明:采用氧化法可得到更加真实、完整、清晰的晶粒形貌,是一种有效、方便、环保的晶粒度评定方法,可用于该钢晶粒度检验;直接淬硬法采用92mL HCl+5 mL H2SO4+3 mL HNO3浸蚀剂室温浸蚀1 min或1g KMnO4+10 mL H2SO4+100mL H2O浸蚀剂热浸蚀2min,晶界显示清晰。
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| 关 键 词： | PH13-8Mo钢 沉淀硬化不锈钢 氧化法 晶粒度评定 马氏体 |
Optimum Methods of Grain Display of PH13-8Mo Precipitation-hardening Stainless Steel for Aviation |
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| HE Jun,ZHU Ling,BAO Jing,ZHU Kai,LUO Qing. Optimum Methods of Grain Display of PH13-8Mo Precipitation-hardening Stainless Steel for Aviation[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2019, 55(8): 533-537,541 |
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| Authors: | HE Jun ZHU Ling BAO Jing ZHU Kai LUO Qing |
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| Affiliation: | (Chengdu Aircraft Industrial (Group) Co. L td . AVIC , Chengdu 610091, China) |
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| Abstract: | It is invalid that the grain boundary shown from the specimen of PH13-8Mo precipitationhardening stainless steel for aviation after heat treatment of direct hardening and etched by normal stainless steel etching solution. Comparison oxidation method with direct hardening method by various corrosion, the results show that oxidation method lead to the real, integrity, clear grain morphology. It is a valid, convenient and environmental method for grain size evaluation of steel PH13-8Mo;92 mL HCl+5 mL H2SO4 +3 mL HNO3 immersion at room forB^ninorSg KMnO4 + 10mL H2SO4 +100 mL H2O thermal etching for 2 min by direct hardening method can produce clear grain boundaries. |
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| Keywords: | steel PH13 8Mo precipitation-hardening stainless steel oxidation method grain size evaluation martensite |
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