Acta Metall Sin  1996, Vol. 32 Issue (11): 1130-1138    DOI:

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EFFECTS OF Si ON MECHANICAL PROPERTIES AND GRAIN BOUNDARY STRUCTURES IN HYPEREUTECTOID Mn STEELS

ZHU Xiaodong; LI Chengji; ZHANG Shouhua (University of Scicnce and Technol ogy Beijing; Beijing 100083); ZOU Ming; SU Shihuai (Panzhihua Iron and Steel [Group] Company; Panzhihua 617067)

ZHU Xiaodong; LI Chengji; ZHANG Shouhua (University of Scicnce and Technol ogy Beijing; Beijing 100083); ZOU Ming; SU Shihuai (Panzhihua Iron and Steel [Group] Company; Panzhihua 617067). EFFECTS OF Si ON MECHANICAL PROPERTIES AND GRAIN BOUNDARY STRUCTURES IN HYPEREUTECTOID Mn STEELS. Acta Metall Sin, 1996, 32(11): 1130-1138.

Abstract References Related Articles Recommended Metrics Download:  PDF(884KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The effects of Si on the grain boundary structure and mechanical properties of hypereutectoid Mn steels austenitized at 950℃ and isothemially transformed at 560℃were studied by means of SEM and TEM. The experimental results showed that the impact toughness and elongation can be improved by Si additions. The observation of microstructure revealed that grain boundary cemetite networks can be inhibited and grain boundary ferrite formed in these hypereutectoid steels by Si addition. The formation mechanism of grain boundary ferrite has also been discussed. Correspondent: LI Chengji, Professor, Department of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083 Key words:  grain boundary ferrite      hypereutetoid steel      pearlite      mechanical property      Received:  18 November 1996      Service E-mail this article Add to citation manager E-mail Alert RSS Collect articles（） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1996/V32/I11/1130 1AlltenAG,PaysonP．TransASM,1953;45:4982ParkerER．MetallTrans,1977;8:10253胡光立,康沫狂等．航空材料,1985;5:14KangMokuang．In:LiuGuoxun,StuartH,ZhangHongtao,LiChengeds．HSLASteels'95ConfProc,Beijing:ChinaScience&TechnologyPress,1995:4955TsukataniI,HashimotoS,InoueT．In:TitherG,ZhangShouhuaeds．,HSLASteels:Processing,PropertiesandApplications,ProcoftheSecondInternationalConferenceonHSLASteels,USA:TMS,1990:2916王传雅．特殊钢,1994;15(6):547周富智主编．低合金钢性能手册．北京:冶金工业出版社,1986:3438HanK,SmithGDW,EdmondsDV．MetallMaterTrans,1995;26A:16179PickeringFB,GarbarzB．ScrMetall,1987;21:24910朱晓东,李承基,章守华等．北京科技大学学报,1996,6(待出版)11刘世楷,张筠．材料科学进展,1988;2:．2212SandvikBPJ．MetallTrans,1982;13A:77713LeHouillerR,BeginG,DubeA．MetallTrans,1971;2:264714李承基,胡梦怡．金属热处理学报,1981:1:1815HehemannRF,KinsmanKR,AaronsonHI．MetallTrans,1972;3A:107716李承基,高德春,曹凤豫,陆丰．金属学报,1993;29:A53517MemahonCJ．MetallTrans,1980;11A:53118李承基．贝氏体相变理论．北京:机械工业出版社,1995:52 [1] ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing. 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