蒋一,岑启宏,蒋业华,周荣

• 1:昆明理工大学材料科学与工程学院
• 2:云南省先进成形制造工程技术研究中心

摘要(Abstract)：

采用空冷和水冷不同铸型方式,研究冷却速度对离心铸造高硼高速钢辊环组织的影响,制备出辊环。结果表明:铸态高硼高速钢辊环组织由树枝状基体和硼碳化物组成。快速冷却下,基体组织全部转化为马氏体;硼碳化物的类型没有发生变化,由M2(B,C)、M3(B,C)以及M23(B,C)6组成。随着冷却速率的增加,基体晶粒尺寸减小,硼碳化物数量减少,鱼骨状硼碳化物向筛网状转变,局部出现缩颈和孤立现象。冷却速度的增加影响了合金元素在基体和硬质相中的分布,硬质相的显微硬度不变,基体硬度略有增加。空冷砂型离心铸造时,随着距辊环外边缘距离的增加,出现菊花片状的包晶组织,并且数量也逐渐增加。

关键词(KeyWords)： 冷却速度;离心铸造;高硼高速钢;组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51171073);; 云南省院省校科技合作专项(2010AD012);; 云铜校企基金(KKZ4201151003);; 昆明理工大学分析测试基金(2011004)

作者(Author): 蒋一,岑启宏,蒋业华,周荣

DOI: 10.13289/j.issn.1009-6264.2013.04.026

参考文献(References)：

• [1]冯锡兰,蒋志强,符寒光,等.新型高硼合金钢的研究[J].金属热处理,2005,30(增刊):57-60.FENG Xi-lan,JIANG Zhi-qiang,FU Han-guang,et al.Study of new type high boron alloy steel[J].Metal Heat Treatment,2005,30:57-60.
• [2]Dogan O N,Hawk J A,Rice J.Comparison of three Ni-hard I alloys[C]//Materials Science and Technology.AIST process Metallurgy,ProductQuality and Applications Proceedings.New Orleans,LA,United states,Sep 26-29,2004:451-455.
• [3]Martini C,Palombarini G,Poli G,et al.Sliding and abrasive wear behaviour of boride coatings[J].Wear,2004,256:608-613.
• [4]Christodoulou P,Calos N.A step towards designing Fe-Cr B-C cast alloys[J].Materials Science and Engineering A,2001,301(20):103-117.
• [5]郭长庆,高守忠.新型铁基耐磨材料FCB合金[J].铸造,2004,53(10):761-764.GUO Chang-qing,GAO Sou-zong.New Fe-base wear-resistant material FCB Alloys[J].Foundry,2004,53(10):761-764.
• [6]Aso S,Hachisuka M,Goto S.Phase transformation of iron matrix of Fe-15mass%Cr-C-B alloys[J].Journal of the Japan Institute of Metals,1988,61(7):567-573.
• [7]Hanguang F,Qiang X,Kuang jiacai,et al.Effect of rare earth and titanium on the microstructures and properties of low carbon Fe-B cast steel[J].Mater Sci Eng A,2007,466:160-165.
• [8]LIU Zhong-li,CHEN Xiang,LI Yan-xiang,et al.Effect of chromium on microstructure and properties of high boron white cast iron[J].Metall MaterTrans A,2008,39(3):636-641.
• [9]FU Han-guang,YANG Li-fen,JIANG Zhi-qiang,et al,Effect of quenching temperature on microstructure and mechanical properties of Fe-B-Ti alloy[J].Int J Mater Res,2007,98(6):521-525.
• [10]符寒光,邢建东.高速钢轧辊制造技术[M].北京:冶金工业出版社,2007.
• [11]Baker H.ASM Handbook,Volume 3.alloy Phase Diagrams[M].ASM International,Materials Park,Ohio,1992:281.
• [12]本溪钢铁公司第一炼钢厂.硼钢[M].北京:冶金工业出版社,1977.
• [13]Ambroza P,Kavaliauskiene L.Influence of carbon and boron on the properties of deposited layer[J].Mechanika,2004(4):59-63.
• [14]GUO Chang-qing.Improving ductility and toughness of Fe-C-B cast iron[D].The University of Queensland.2002 PHD thesis.
• [15]宋绪丁.高硼铁基系列铸造耐磨合金研制及其应用研究[D].长安大学,2008:28-30.

文章评论(Comment)：