纳米TiN粉末强化ZGMn13微观组织和力学性能的研究  

Research on Microstructure and Mechanical Properties of ZGMn13 Strengthened by TiN Nanopowders

作　　者：喻惠武[1] 王文焱[1] 谢敬佩[1] 周平安 李炎[1] 王嘉希[3] 

机构地区：[1]河南科技大学,河南洛阳471003 [2]中国农机研究院,北京100083 [3]河南大学,河南开封475004

出　　处：《铸造技术》2012年第5期525-527,共3页Foundry Technology

基　　金：河南省科技攻关项目(084300510006);河南科技大学博士基金项目;河南科技大学实验开发基金资助项目(SY0708053;SY0910056);河南科技大学校基金资助项目(2007ZY044)

摘　　要：采用氩气吹入法制备纳米TiN粉末强化ZGMn13样品,研究了纳米TiN对ZGMn13显微组织和力学性能的影响。结果表明,经纳米TiN粉末强化处理后的高锰钢的组织明显细化,力学性能明显提高。透射形貌分析和衍射花样标定得出:纳米级TiN以0.5916%的错配度存在于基体中,可作为异质形核剂细化高锰钢晶粒,强化基体,并分析了纳米TiN在高锰钢中的作用机理。The ZGMn13 samples reinforced by TiN nano-powders were prepared by Argon method in industrial conditions.The mechanical properties and microstructure of TiN reinforced ZGMn13 samples were investigated.The results show that the microstructure of TiN reinforced ZGMn13 refines obviously and the mechanical properties improves significantly.Transmission topography analysis and electron diffraction pattern show that Nano-TiN exists in the matrix with the mismatch of 0.591 6% between austenite and TiN,and it can refine the grains of high-manganese steel as heterogeneous nucleation agents,and strengthens the matrix.The mechanism of nano-TiN in high-manganese steel was analysed.

关 键 词：纳米TiN粉体 高锰钢 力学性能 微观组织 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TG142.13[金属学及工艺—金属材料]