| 300M超高强度钢板条马氏体的晶体学研究 |
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| 引用本文： | 罗承萍,许麟康,查健中. 300M超高强度钢板条马氏体的晶体学研究[J]. 金属学报, 1993, 29(7): 28-33 |
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| 作者姓名： | 罗承萍 许麟康 查健中 |
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| 作者单位： | 华南理工大学机械二系，华南理工大学，广东省钢铁研究所 |
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| 摘 要： | 电子衍射和晶体学测量证实,300M超高强度钢板条马氏体的惯习面为{335}_A型,与奥氏体的位向关系偏离K-S关系2.5°,为G—T关系,相邻板条间绕其公共面{110}_M法线相对旋转约60°,形成板条间不同的位向关系,包括近似{112}_M孪晶关系。
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| 关 键 词： | 板条马氏体 超高强度钢 晶体学 |
| 收稿时间： | 1993-07-18 |
| 修稿时间： | 1993-07-18 |
CRYSTALLOGRAPGY OF LATH MARTENSITE IN ULTRAHIGH-STRENGTH STEEL 300M |
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| LUO Chengping,XU Linkang,CHA Jianzhong South-China University of Technology,Guangzhou Guangdong Iron and Steel Research Institute. CRYSTALLOGRAPGY OF LATH MARTENSITE IN ULTRAHIGH-STRENGTH STEEL 300M[J]. Acta Metallurgica Sinica, 1993, 29(7): 28-33 |
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| Authors: | LUO Chengping XU Linkang CHA Jianzhong South-China University of Technology Guangzhou Guangdong Iron Steel Research Institute |
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| Affiliation: | LUO Chengping,XU Linkang,CHA Jianzhong South-China University of Technology,Guangzhou Guangdong Iron and Steel Research InstituteDepartment of Mechanical Engineering |
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| Abstract: | A TEM study was made of the crystallography of the lath martensite formedin a Ultrahigh-strength steel 300M. It was found that the habit plane is close to {335}_A, theorientation relationship between the martensite and austenite is the G-T one which is 2.5°away from the K-S relationship, and the laths relate to each other by a relative rotation ofabout 60° about the normal to their common planes {110}_M. Although various orientationrelationships, including a near {112}_M twin one, could be formed between the lathsthemselves due to the rotations, a unique G-T orientation relationship was kept between thelath and austenite. |
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| Keywords: | lath martensite habit plane ultrahigh-strenth steel steel 300M |
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