温余远,鲁世强,刘俊伟,刘大博,刘天琦

• 1:南昌航空大学材料科学与工程学院
• 2:北京航空材料研究院

摘要(Abstract)：

研究了300 M钢在不同加热温度(850～1180℃)和保温时间(5～120 min)下的奥氏体晶粒长大规律。绘制了300 M钢奥氏体晶粒尺寸在不同加热温度和保温时间下的等值线图;利用Sellars晶粒长大模型,构建了300 M钢的奥氏体晶粒长大数学模型。结果表明,300 M钢在高温加热时具有较好的抗晶粒粗化能力,在1050℃左右开始粗化。奥氏体晶粒尺寸等值线图可定性和定量预测奥氏体晶粒长大规律;奥氏体晶粒长大数学模型可用两个数学公式来描述,即当加热温度为850℃≤T≤1050℃时,d6.14=texp(68.97-64945.88/T);当加热温度为1050℃≤T≤1180℃时,d7.39=texp(134.56-144504.52/T)。

关键词(KeyWords)： 300M钢;奥氏体晶粒;晶粒长大;模型

Abstract:

Keywords:

基金项目(Foundation): 江西省自然科学基金(2008GZC0041)

作者(Author): 温余远,鲁世强,刘俊伟,刘大博,刘天琦

DOI: 10.13289/j.issn.1009-6264.2012.09.010

参考文献(References)：

• [1]中国航空材料手册编辑委员会.中国航空材料手册(第1卷):结构钢,不锈钢[M].北京:中国标准出版社,1988:433.
• [2]张伟,赵振业,张德堂,等.300M超高强度钢的奥氏体相变再结晶温度和低倍粗晶的消除[J].材料工程,1993(8):21-25.ZHANG Wei,ZHAO Zhen-ye,ZHANG De-tang,et al.The austenite recrystallization temperature and eliminating of coarsed macro-grain of 300Multrahigh-strength steel[J].Journal of Materials Engineering,1993(8):21-25.
• [3]王长健,王钢.300M钢晶粒度腐蚀方法研究[J].大型铸锻件,2004(3):13-16.WANG Chang-jian,WANG Gang.The research for the grain size corrosion method of 300M steel[J].Heavy Castings and Forgings,2004(3):13-16.
• [4]GB/T6394—2002金属平均晶粒度测定方法[S].
• [5]胡德林.钢的奥氏体晶粒度及其控制[J].金属热处理,1983,8(11):53-61.HU De-lin.Austenite grain size and controlling of steel[J].Heat Treatment of Metals,1983,8(11):53-61.
• [6]张志波,孙新军,刘清友,等.均热过程中低碳钢奥氏体晶粒长大规律研究[J].材料热处理学报,2008,29(5):89-92.ZHANG Zhi-bo,SUN Xin-jun,LIU Qing-you,et al.Study on austenite grain growth of a low carbon steel in heating process[J].Transactions ofMaterials and Heat Treatment,2008,29(5):89-92.
• [7]毛卫民,赵新兵.金属的再结晶与晶粒长大[M].北京:冶金工业出版社,1994:236.
• [8]钟云龙,刘国权,刘胜新,等.新型油井管钢33Mn2V的奥氏体晶粒长大规律[J].金属学报,2003,39(7):699-703.ZHONG Yun-long,LIU Guo-quan,LIU Sheng-xin,et al.Austenite grain growth behavior of steel 33Mn2V designed for oil-well tubes[J].ActaMetallurgica Sinica,2003,39(7):699-703.
• [9]Devadas C,Samarasekera I V,Hawbolt E B.The thermal and metallurgical state of steel strip during hot rolling:PartⅢ.Microstructural evolution[J].Metallurgical and Materials Transactions A,1991,22(2):335-349.
• [10]Anelli E.Application trolled mathematical modelling to hot rolling and con-cooling of wire rods and bars of C-Mn[J].ISIJ International,1992,32:440-449.
• [11]Raghunathan N,Sheppard T.Microstructural development during annealing of hot rolled Al-Mg alloys[J].Materials Science and Technology,1989,5(6):542-547.
• [12]李立新,汪凌云,周家林,等.等温条件下晶粒长大模型研究[J].武汉科技大学学报:自然科学版,2002,25(4):335-336.LI Li-xin,WANG Ling-yun,ZHOU Jia-lin,et al.Development of a model of isothermal grain growth[J].Journal of Wuhan University of Science andTechnology:Natural Science Edition,2002,25(4):335-336.

文章评论(Comment)：