杨鹏鹏,宋波,毛璟红,苏步新,黄运红,华正利

• 1:北京科技大学钢铁冶金新技术国家重点实验室
• 2:北京科技大学冶金与生态工程学院
• 3:北京科技大学材料科学与工程学院

摘要(Abstract)：

利用扫描电镜及能谱分析研究了16Mn钢中Sb的析出行为,利用光学显微镜观察钢的显微组织。结果表明:16Mn钢中Sb的析出位置主要有两种:一是沿原奥氏体晶界析出;二是在MnS夹杂物上富集析出。Sb在MnS夹杂物上的富集析出,能促进钢中晶内铁素体的形成。适当提高S含量,降低O含量,加入Ti变质钢中MnS夹杂等方式,能增加Sb在夹杂物上富集析出,促进了晶内铁素体,尤其是晶内针状铁素体形成,减少了Sb的晶界析出。

关键词(KeyWords)： 硫化锰;Sb;晶内铁素体;形核;针状铁素体

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51174019)

作者(Author): 杨鹏鹏,宋波,毛璟红,苏步新,黄运红,华正利

DOI: 10.13289/j.issn.1009-6264.2012.11.019

参考文献(References)：

• [1]王玉,彭德缘.残余元素对不锈钢的热加工性的影响[J].特殊钢,1990(1):24-29.WANG Yu,PENG De-yuan.Effect of residual elements on hot workability of stainless steel[J].Special Steel,1990(1):24-29.
• [2]Van Wijngaarden M J U T,Visagie G P.The effect of residuals on the presence of intergranular surface cracks on continuously cast billets[C]∥15 thPTD conference proceedings,ISS AIME,1996:93-97.
• [3]刘富有.残余元素的表面富集与晶界氧化[J].金属学报,1978,14(3):310-315.LIU Fu-you.Surface enrichment of residual elements and oxidation of the austenite grain boundaries[J].Acta Metallurgica Sinica,1978,14(3):310-315.
• [4]Yuan Z X,Guo A M,Liu J,et al.Antimony grain boundary segregation and its suppression by cerium in Fe-2%Mn-Sb structural steels[J].ActaMetallurgica Sinica,2003,16(3):175-182.
• [5]杨小平,李长荣.残余Cu对钢材热加工性能的危害及其抑制措施[J].热加工工艺,2009,38(10):155-157.YANG Xiao-ping,LI Chang-rong.Harmfulness of residual Cu to hot-working properties of steel and its suppression measures[J].Hot WorkingTechnology,2009,38(10):155-157.
• [6]Kenichi Yamamoto,Hiroyuki Shibata,Shozo Mizoguchi.Precipitation behavior of copper,tin and manganese sulfide at high temperature in Fe-10%Cu-0.5%Sn alloys[J].ISIJ Intenational,2006,46(1):82-88.
• [7]Wu K M,Li Z G,He X L,et al.Microstructure evolution in a low carbon Nb-Ti microalloyed steel[J].ISIJ International,2006,46:161-165.
• [8]Tomita Y,Saito N,Tsuzuki T,et al.Improvement in HAZ toughness of steel by TiN-MnS addition[J].ISIJ International,1994,34(10):829-835.
• [9]Sarmad S,Karasev A V,Jonsson P G.Review on the role of Non-metallic Inclusion in the nucleation of acicular ferrite in steels[J].ISIJ International,2009,49(7):1067-1068.
• [10]Mabuchi H,Uemori R,fujioka M.The role of Mn depletion in intra-granular ferrite transformation in the heat affected zone of welding joints with largeheat input in structural steels[J].ISIJ International,1996,36(11):1406-1412.
• [11]卓晓军,Han-Soo Kim,Youn-Bae Kang,等.硅锰钛脱氧钢中以锰钛氧化物和硫化锰夹杂物为形核核心的晶内铁素体形成研究[C]//2005中国钢铁年会论文集.北京:中国金属学会,2005:687-694.
• [12]Llewellyn D T.Copper in steels[J].Ironmaking and Steelmaking,1995,22(1):25-34.
• [13]赵天从.锑[M].北京:冶金工业出版社,1987.
• [14]夏云进,王福明,王金龙.氧含量对易切削钢中硫化物生成行为的影响[J].北京科技大学学报,2010,32(10):1271-1276.XIA Yun-jin,WANG Fu-ming,WANG Jin-long.Effect of oxygen content on the formation behavior of sulfides in free-cutting steel[J].Journal ofUniversity of Science and Technology Beijing,2010,32(10):1271-1276.
• [15]罗志涛.钛氧化物冶金在非调质钢中的基础研究[D].北京科技大学,2005.

文章评论(Comment)：