李峰,黎振华

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

采用形变热处理的方法来改善含0.36%C、1.48%B的亚共晶Fe-C-B合金的组织和性能。结果表明,高温形变后,合金中的含硼硬质相由连续网状分布转变为块状聚集态分布,α-Fe中形成了(110)晶面的择优取向。形变后的试样经1050℃奥氏体化淬火后,硬质相聚集现象消失,转变为条块状弥散分布在基体中,基体完全转变成马氏体,α-Fe中(110)晶面的择优取向消失。经过形变热处理后,合金硬度达58 HRC,冲击韧性与形变热处理前有较大提高,达到9.3 J/cm2。

关键词(KeyWords)： 亚共晶Fe-C-B合金;形变热处理;硬质相分布

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50701020);; 云南省中青年学术技术带头人后备人才培养项目(2008PY011和2009CI022);; 昆明理工大学金川集团预研项目(KKZ4201251003);; 归国留学人员科研启动基金项目

作者(Author): 李峰,黎振华

参考文献(References)：

• [1]Lakeland K D,Graham E,Heron A.Mechanical properties and microstructures of a series of FCB alloys[D].Brisbane(Australia):The University of Queensland,1992:1-13.
• [2]Guo C Q,Kelly P M.Boron solubility in Fe-Cr-B cast irons[J].Materials Science and Engineering A,2003,352(1-2):40-45.
• [3]赵国荣,黎振华,蒋业华,等.铸造Fe-C-B合金组织与性能研究[J].铸造,2008,57(5):451-457.ZHAO Guo-rong,LI Zhen-hua,JIANG Ye-hua,et al.Microstructure and properties of cast Fe-C-B alloy[J].Foundry,2008,57(5):451-457.
• [4]符寒光,蒋志强.耐磨铸造Fe-B-C合金的研究[J].金属学报,2006,42(5):545-548.FU Han-guang,JIANG Zhi-qiang.A study of abrasion resistant cast Fe-B-C alloy[J].Acta Metallurgica Sinica,2006,42(5):545-548.
• [5]LIU Zhong-li,LI Yan-xiang,CHEN Xiang,et al.Microstructure and mechanical properties of high boron white cast iron[J].Materials Science and Engineering A,2008,486(1-2):112-116.
• [6]FU Han-guang,Xiao Qiang,KUANG Jia-cai,et al.Effect of rare earth and titanium additions on the microstructures and properties of low carbon FeB cast steel[J].Materials Science and Engineering A,2007,466(1-2):160-165.
• [7]LIU Zhong-li,CHEN Xiang,LI Yan-xiang,et al.High boron iron-based alloy and its modification[J].Journal of Iron and Steel Research,International,2009,16(3):37-42.
• [8]FU Han-guang,LI Zhen-hua,LEI Yong-ping,et al.Structural variations in heat treated B-bearing stainless steel[J].Materials and Design,2009,30(3):885-891.
• [9]宋绪丁,符寒光,杨军.热处理对耐磨铸造Fe-C-B合金组织及性能的影响[J].材料热处理学报,2008,29(1):38-41.SONG Xu-ding,FU Han-guang,YANG Jun.Effect of heat treatment on microstructure and properties of wear resistant cast Fe-C-B alloy[J].Transactions of Materials and Heat Treatment,2008,29(1):38-41.
• [10]鲍姚亮,岑启宏,蒋业华,等.淬火温度对高硼高速钢显微组织的影响[J].材料热处理学报,2012,33(7):72-75.BAO Yao-liang,CEN Qi-hong,JIANG Ye-hua,et al.Effect of quenching temperature on microstructure of high-boron high speed steel[J].Transactions of Materials and Heat Treatment,2012,33(7):72-75.
• [11]姜振雄,陈志强,须祖兴,等.白口铸铁形变热处理[J].浙江大学学报:自然科学版,1989,32(5):629-635.JIANG Zhen-xiong,CHEN Zhi-qiang,XU Zu-xing,et al.The deformation heat-treatment of white cast iron[J].Journal of Zhejiang University:Nature Science,1989,32(5):629-636.
• [12]CHANG Li-min,LIU Lin,LIU Jian-hua.Properties of cross-rolled low alloy white cast iron grinding ball[J].Journal of Iron and Steel Research,International,2007,14(5):47-51.
• [13]XIE Guo-liang,HAN Jing-tao,LIU Jing,et al.Texture,microstructure and microhardness evolution of a hot-rolled high chromium cast iron[J].Materials Science and Engineering A,2010,527(23):6251-6254.
• [14]李绍雄.铁碳硼合金中硬相的形成方式、相对量及晶格常数的研究[J].吉林工业大学学报:工学版,1987,17(4):82-92.LI Shao-xiong.A study of hard phase formation mechanism,relative amount and crystal lattice coefficient in Fe-C-B alloy[J].Journal of Jilin University of Technology:Engineering and Technology Edition,1987,17(4):82-92.
• [15]张建军,高义民,邢建东,等.锻造加热处理对高硼铸造铁基合金组织与性能的影响[J].西安交通大学学报,2010,44(8):113-121.ZHANG Jian-jun,GAO Yi-min,XING Jian-dong,et al.Effect of forging and heat treatment on microstructure and properties of high boron cast ferroalloy[J].Journal of Xi’An JiaoTong Universtiy,2010,44(8):113-121.

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