改性纳米SiC粉体强韧化ZGMn13组织及性能的研究  

Research on the Microstructure and Mechanical Properties of ZGMn13 Reinforced by Modified SiC Nano-Powders

作　　者：陈美玲[1] 金环[1] 杨军[1] 杨莉[1] 高宏[1] 

机构地区：[1]大连交通大学材料科学与工程学院无机超细粉体制备及应用辽宁省重点实验室,辽宁大连116028

出　　处：《铸造设备与工艺》2011年第3期25-28,共4页Foundry Equipment & Technology

基　　金：教育部博士点基金

摘　　要：在生产条件下采用冲入法制备了改性纳米SiC粉体强韧化ZGMn13耐磨材料,研究了SiC粉体对ZGMn13显微组织和力学性能的影响。结果表明:经表面活性处理的纳米SiC粉体能够明显改善高锰钢凝固组织。经水韧处理后,组织更加细小,碳化物基本固溶到基体中。在本实验研究范围内,随着SiC加入量增加,力学性能也不断提高,其强化机理主要是细晶强化和第二相粒子弥散强化的综合作用。当纳米SiC粉体加入量为0.1%时,抗拉强度、硬度和韧性最优,分别提高了8.2%、19%和22%。High manganese steel wear-resistant material reinforced by modified SiC nano-powders was prepared under industrial conditions.The mechanical properties and microstructures of samples with different additions of SiC nano-powders were investigated.The results show that,compared with the samples without SiC nano-powders,the microstructures,grain sizes and mechanical properties of the reinforced stainless steel were refined and improved obviously.After tough treatment by the water,the organizations becomes more fine,and the carbideis dissolved in the matrix.Within the scope of this experimental study,with the increasing addition of SiC,the mechanical properties are also rising,and its strengthening mechanism is the combination of grain refinement and the second phase particles dispersion strengthening.The hardness,tensile strength and toughness of the sample with addition of 0.1% SiC nano-powders were increased by 6.33%,4.70% and 19.97%,respectively.

关 键 词：高锰钢 改性纳米SIC粉体 显微组织 力学性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程]