金属学报  2011, Vol. 47 Issue (9): 1210-1215    DOI: 10.3724/SP.J.1037.2011.00183

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加热过程中硫系易切削钢中MnS夹杂物行为的动态原位观察

邵肖静, 王新华, 姜敏, 王万军, 黄福祥, 冀云卿

北京科技大学冶金与生态工程学院, 北京 100083

IN SITU OBSERVATION OF MnS INCLUSION BEHAVIOR IN RESULFURIZED FREE-CUTTING STEEL DURING HEATING

SHAO Xiaojing, WANG Xinhua, JIANG Min, WANG Wanjun, HUANG Fuxiang, JI Yunqing

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083

邵肖静 王新华 姜敏 王万军 黄福祥 冀云卿. 加热过程中硫系易切削钢中MnS夹杂物行为的动态原位观察[J]. 金属学报, 2011, 47(9): 1210-1215.
, , , , , . IN SITU OBSERVATION OF MnS INCLUSION BEHAVIOR IN RESULFURIZED FREE-CUTTING STEEL DURING HEATING[J]. Acta Metall Sin, 2011, 47(9): 1210-1215.

摘要 参考文献 相关文章 Metrics 全文: PDF(2775 KB)   摘要: 以高硫易切削钢轧材中大尺寸、长条状MnS为例, 利用高温激光共聚焦扫描显微镜观察了加热过程中MnS夹杂物的演变过程, 并分析了升温速率对MnS形态演变的影响. 研究表明, 在加热过程中, 经轧制伸长的大尺寸MnS发生了径向收缩、轴向分裂, 使其长度减小、形态趋近纺锤形. 当升温速率在0.5-2℃/s时, 随着升温速率的增加大尺寸细长MnS的分裂程度逐渐降低; 当升温速率增加至6-10℃/s后MnS基本不再发生分裂. 关键词 ： 硫系易切削钢,  高温激光共聚焦扫描显微镜,  MnS夹杂物     Abstract：MnS is a common type of non-metallic inclusions in steel, which is of good deformability during rolling. As elongated MnS inclusions in rolling direction often cause poor mechanical property of steel. However, MnS is indispensable in resulfurized free-cutting steel. In order to improve mechanical property, especially cutting property of free-cutting steel, the good control of shape and size of MnS is important. In this study, confocal scanning laser microscope was used firstly to observe the morphology evolution of large-sized slender MnS during heating. The effect of heating rate was also considered. The results indicated that for morphology evolution of MnS, the shrink occurred in longitudinal direction, whereas expansion and contraction happened in radial direction, which finally caused the split of slender MnS. When samples were heated at the rate between 0.5-2℃/s, the split degree of MnS decreased with the increase of heating rate. When the heating rate was in the range of 6-10℃/s, the splitting behavior of MnS could not occur. Key words： resulfurized free-cutting steel    confocal scanning laser microscope    MnS inclusion 收稿日期: 2011-03-31      作者简介: 邵肖静, 女, 1983年生, 博士生 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 邵肖静 王新华 王万军 姜敏 黄福祥 冀云卿 44.8K 链接本文: https://www.ams.org.cn/CN/10.3724/SP.J.1037.2011.00183      或      https://www.ams.org.cn/CN/Y2011/V47/I9/1210 [1] Chen H X, Zhou P, Chen A J, L¨u H L, Li C F. China Metall, 2001; 11: 32 (陈洪星, 周平, 陈爱洁, 吕洪亮, 李丰常. 中国冶金, 2001; 11: 32) [2] Jiang G H. Master Dissertation, Kunming University of Science and Technology, 2006 (蒋光辉. 昆明理工大学硕士学位论文, 2006) [3] Mao Z Q. Auto Technol Mater, 2000; 2: 1 (毛志强. 汽车工艺与材料, 2000; 2: 1) [4] Li Y M, Zhu F X, Cui F P, Fang K. J Northeastern Univ (Nat Sci), 2007; 28: 1002 (李艳梅, 朱伏先, 崔凤平, 房 轲. 东北大学学报(自然科学版), 2007; 28: 1002) [5] Chen M, Liu G, Zhang X H, Shen Z, Yang G J. Chin J Mechan Eng, 2007; 43: 161 (陈明, 刘钢, 张晓辉, 沈中, 杨贵军. 机械工程学报, 2007; 43: 161) [6] Xu J, Xu D S, Li L C, Xiong L L, Wang J F. Auto Sci Technol, 2003; 1: 28 (许俊, 徐德生, 李良策, 熊龙亮, 王劲枫. 汽车科技, 2003; 1: 28) [7] Li L S, Zhu R, Dong J. In: Li W X ed., CSM 2003 Annual Meeting Proceedings, Beijing: Metallurigical Industry Press, 2003: 335 (李联生, 朱 荣, 董杰. 见: 李文秀主编, 2003中国钢铁年会论文集, 北京: 冶金工业出版社, 2003: 335) [8] Xia Y J,Wang F M,Wang J L, Zhao J. J Univ Sci Technol Beijing, 2010; 32B: 1271 (夏云进, 王福明, 王金龙, 赵晶. 北京科技大学学报, 2010; 32B: 1271) [9] Chen L, Chen W Q, Xiao F H. Spec Steel, 2008; 29: 47 (陈列, 陈伟庆, 肖飞虎. 特殊钢, 2008; 29: 47) [10] Li G Z, Wang F M, Hui R, Cao W K. Int J Miner Metall Mater, 2009; 16: 650 [11] Li L S, Zhu R, Yin H, Liu P, Zhang L P, Wei C Z, Zhou P, Dong J. Chin Rare Earths, 2005; 26(5): 48 (李联生, 朱 荣, 殷浩, 刘平, 张利平, 魏承志, 周平, 董杰. 稀土, 2005; 26(5): 48) [12] Yun G A, Qin Z, Tian Z H, Sun Y H,Cai K K. J Univ Sci Technol Beijing, 2007; 29B: 685 (严国安, 秦哲, 田志红, 孙彦辉, 蔡开科. 北京科技大学学报, 2007; 29B: 685) [13] Shao X J, Wang X H, Wang W J, Huang F X, Jiang M. J Univ Sci Technol Beijing, 2010; 32B: 570 (邵肖静, 王新华, 王万军, 黄福祥, 姜敏. 北京科技大学学报, 2010; 32B: 570) [14] Nichols F A. J Mater Sci, 1976; 11: 1077 [15] Nichols F A, MullinsWW. Trans Metall Soc AIME, 1965; 233: 1840 [16] Liu W J, Jonas J J. Metall Trans, 1989; 20A: 1361 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed