| AISI304不锈钢在冷加工过程中的微观组织变化 |
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| 引用本文： | 许淳淳,张新生,胡钢.AISI304不锈钢在冷加工过程中的微观组织变化[J].北京化工大学学报(自然科学版),2002,29(6):27-31. |
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| 作者姓名： | 许淳淳 张新生 胡钢 |
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| 作者单位： | 1. 北京化工大学材料科学与工程学院,北京,100029;2. 北京化工大学材料科学与工程学院,北京,100029;黄冈师范学院化学系,湖北,黄冈,438000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);G19990650; |
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| 摘 要： | 在不同温度下对AISI304不锈钢进行不同方式、不同程度冷加工,用铁素体测量仪测定马氏体相变量,研究了冷加工与马氏体相变的关系;将AISI304不锈钢在低温(液氮,-70#℃)条件下进行不同程度拉伸,采用透射电镜观测位错分布,研究了冷加工与位错密度的关系.结果表明:冷加工在一定条件下可以产生形变诱发马氏体,其含量随冷加工变形量的增大而增加;同时,冷加工导致AISI304不锈钢中金属晶粒拉长,其位错密度随冷加工变形量的增加而增大.
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| 关 键 词： | AISI304不锈钢 冷加工 马氏体相变 位错密度 |
| 修稿时间： | 2002年3月11日 |
Microstructure change of AISI304 stainless steel in the course of cold working |
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| XU Chun-chun,ZHANG Xin-sheng,HU Gang.Microstructure change of AISI304 stainless steel in the course of cold working[J].Journal of Beijing University of Chemical Technology,2002,29(6):27-31. |
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| Authors: | XU Chun-chun ZHANG Xin-sheng HU Gang |
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| Affiliation: | XU Chun-chun 1 ZHANG Xin-sheng 1 HU Gang 1,2 |
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| Abstract: | Martensite content of AISI304 stainless steels cold - worked at different temperatures , ways and degrees of deformation was examined by ferrmagnetometer , which was used to study the relations between coldworking and martensite phase t ransformation. The dist ribution of the dislocations of AISI304 stainless steels drawn at - 70 ℃ with different degrees of deformation was observed by t ransmission elect ron microscope( TEM) , which was used to study the relations between cold working and dislocation density. The result s show that cold working , to some extent , can cause deformation - induced martensite , whose content increases with the increase of deformation. At the same time , it is also found that cold working makes the particles of AISI304 stainless steels st retched and the dislocation density of AISI304 stainless steel increases with the increase of deformation. |
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| Keywords: | AISI304 stainless steel cold working martensite phase transformation dislocation density |
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