| 18-8型奥氏体不锈钢在低周疲劳变形下的微观组织特征 |
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| 引用本文： | 罗治平,陈成澍,鄢文彬,陶佑卿.18-8型奥氏体不锈钢在低周疲劳变形下的微观组织特征[J].材料科学与工艺,1992(1). |
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| 作者姓名： | 罗治平 陈成澍 鄢文彬 陶佑卿 |
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| 作者单位： | 北京航空材料研究所，西南交通大学，西南交通大学，西南交通大学 |
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| 摘 要： | 利用透射电镜系统地研究了18—8型奥氏体不锈钢在低周疲劳变形下的微观组织,包括奥氏体位错组态,形变孪晶和形变马氏体。发现奥氏体位错组态与应变幅和温度有关,形变马氏体主要在 SB 交截处形核,在室温和低温下由于母相变形方式的不同而产生不同的组织特征。
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| 关 键 词： | 奥氏体不锈钢 低周疲劳变形 透射电镜 微观组织 |
Characteristics of Microstructure in 18-8 Type Austenitic Stainless Steel under Low Cycle Fatigue Deformation |
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| Luo Zhiping Chen Chengshu Yan Wenbin Tao Youqing.Characteristics of Microstructure in 18-8 Type Austenitic Stainless Steel under Low Cycle Fatigue Deformation[J].Materials Science and Technology,1992(1). |
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| Authors: | Luo Zhiping Chen Chengshu Yan Wenbin Tao Youqing |
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| Affiliation: | Southwestern Jiaotong University |
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| Abstract: | Systematic investigations on microstructure in 18-8 type austenitic stainless steel under low cycle fatigue deformation were made by TEM, including dislocation configurations in austenite,deformation twin,and deformation-induced martensite.As a result,the dislocation configurations in austenite were dependent on strain amplitude and temperature,defor- mation-induced martensite nucleated mainly at the intersections of slip bands. Different structural characteristics were shown at room and low temperature because of the different deformation mode of the parent phase. |
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| Keywords: | austenitic stainless steel low cycle fatigue deformation transmission electron microscopy microstructure |
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