| 新型耐空蚀Cr-Co-Ni-Mn奥氏体不锈钢研究 |
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| 引用本文： | 刘强,李波,陈希章,刘靖,郭辉,袁勇. 新型耐空蚀Cr-Co-Ni-Mn奥氏体不锈钢研究[J]. 功能材料, 2012, 43(5): 673-676 |
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| 作者姓名： | 刘强 李波 陈希章 刘靖 郭辉 袁勇 |
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| 作者单位： | 江苏大学材料科学与工程学院,江苏镇江,212013 |
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| 基金项目： | 江苏省高校自然科学计划资助项目，江苏大学高级专业人才科研启动资助项目 |
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| 摘 要： | 制备了一种Cr-Co-Ni-Mn含钴奥氏体不锈钢。与304不锈钢比较,研究了其抗空蚀性能,用TEM观察了空蚀试样的组织结构,并测定了该钢种的强度,利用时效处理研究其组织稳定性。结果表明Cr-Co-Ni-Mn含钴奥氏体不锈钢屈服强度、抗拉强度比常用的304不锈钢高,奥氏体组织稳定,空蚀孕育期长,耐空蚀效果好。TEM观察到试样空蚀作用层有ε马氏体组织,这些形变组织有利于吸收应变能,提高材料耐空蚀能力。综合该钢的性能,在耐空蚀领域有潜在的应用前景。
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| 关 键 词： | Cr-Co-Ni-Mn奥氏体不锈钢 组织稳定性 空蚀 ε马氏体相变 |
Study on an Cr-Co-Ni-Mn austenitic stainless steel for cavitation erosion |
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| LIU Qiang,LI Bo,CHEN Xi-zhang,LIU Jing,GUO Hui,YUAN Yong. Study on an Cr-Co-Ni-Mn austenitic stainless steel for cavitation erosion[J]. Journal of Functional Materials, 2012, 43(5): 673-676 |
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| Authors: | LIU Qiang LI Bo CHEN Xi-zhang LIU Jing GUO Hui YUAN Yong |
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| Affiliation: | (School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | An Cr-Co-Ni-Mn austenitic stainless steel was self-produced.The properties of its cavitation erosion in comparison with 304 stainless steel was studied.Microstructure of Cr-Co-Ni-Mn austenitic stainless steel was observed by TEM after cavitation erosion.The strength of this material was measured,the structural stability after aging was analyzied.The results reveal that Cr-Co-Ni-Mn austenitic stainless steel has higher strength,and longer incubation time than 304 austenitic stainless steel during cavitation erosion.The austenitic microstructure of this material is more stable.The strain ε-martensite were produced during cavitation erosion,and the structures transformation absorbs shock energy.These exhibt improved cavitation erosion resistance,it can be used in the cavitation field. |
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| Keywords: | Cr-Co-Ni-Mn austenitic stainless steel structural stability cavitation erosion E-martensite phase transformation |
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