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Transformation Behavior of Low Carbon Steels Containing Two Different Si Contents
Alternative TitleTransformation Behavior of Low Carbon Steels Containing Two Different Si Contents
Cai Minghui1; Ding Hua1; Zhang Jiansu3; Li Long4; Li Xiaobin1; Du Linxiu2
2009
Source PublicationJOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN1006-706X
Volume16Issue:2Pages:55-60
AbstractContinuous cooling transformation behaviors of low carbon steels with two Si contents (0.50% and 1.35%) were investigated under undeformed and deformed conditions. Effects of Si contents, deformation, and cooling rates on gamma transformation start temperature (A(r3)), phase microstructures, and hardness were studied. The results show that, in the case of the deformation with the true strain of 0.4, the length of bainitic ferrite laths is Significantly decreased in low Si steel, whereas, the M/A constituent becomes more uniform in high Si steel. An increase in cooling rates lowers the A(r3) greatly. The steel with higher level of Si exhibits higher A(r3), and higher hardness both under undeformed and deformed conditions compared with the steel with a lower Si content. Especially, the influence of Si on A(r3) is dependent on deformation. Such effects are more significant under the undeformed condition. The hardness of both steels increases with the increase of cooling rates, whereas, the deformation involved in both steels reduces the hardness.
Other AbstractContinuous cooling transformation behaviors of low carbon steels with two Si contents (0. 50% and 1. 35%) were investigated under undeformed and deformed conditions. Effects of Si contents, deformation, and cooling rates on γ transformation start temperature (Ar3), phase microstructures, and hardness were studied. The results show that, in the ease of the deformation with the true strain of 0. 4, the length of bainitic ferrite laths is significantly decreased in low Si steel, whereas, the M/A constituent becomes more uniform in high Si steel. An increase in cooling rates lowers the Ar3 greatly. The steel with higher level of Si exhibits higher Ar3, and higher hardness both under undeformed and deformed conditions compared with the steel with a lower Si content. Especially, the influence of Si on At3 is dependent on deformation. Such effects are more significant under the undeformed condition. The hardness of both steels increases with the increase of cooling rates, whereas, the deformation involved in both steels reduces the hardness.
KeywordDUAL-PHASE STEELS MN DEFORMATION AUSTENITE KINETICS Si content low carbon steel cooling rate transformation behavior bainitic morphology
Indexed ByCSCD
Language英语
CSCD IDCSCD:3505965
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/143729
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.东北大学
3.Baoshan Iron & Steel Grp Co, Ctr Technology, Shanghai 201900, Peoples R China
4.Natl Institute Mat Sci, Tsukuba, Ibaraki 3050047, Japan
Recommended Citation
GB/T 7714
Cai Minghui,Ding Hua,Zhang Jiansu,et al. Transformation Behavior of Low Carbon Steels Containing Two Different Si Contents[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2009,16(2):55-60.
APA Cai Minghui,Ding Hua,Zhang Jiansu,Li Long,Li Xiaobin,&Du Linxiu.(2009).Transformation Behavior of Low Carbon Steels Containing Two Different Si Contents.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,16(2),55-60.
MLA Cai Minghui,et al."Transformation Behavior of Low Carbon Steels Containing Two Different Si Contents".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 16.2(2009):55-60.
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