H13钢RE-N-C-S-V-Nb多元共渗层的组织与性能  

Microstructure and properties of RE-N-C-S-V-Nb multi-alloyed layer of H13 steel

作　　者：庞祖高[1] 单朝军[1] 韦芙丹[1] 

机构地区：[1]广西大学材料科学与工程学院,广西南宁530004

出　　处：《金属热处理》2012年第1期61-63,共3页Heat Treatment of Metals

基　　金：广西自然科学基金项目(2010GXNSFA013020)

摘　　要：采用X射线衍射、扫描电镜、能谱分析及显微硬度测试手段,对H13钢RE-N-C-S-V-Nb共渗层进行了研究。结果表明,共渗层主要由NbN、VN、NbC、FeS、V8C7等相构成;共渗层厚度达100～120μm,其组织致密且连续性好,显微硬度高达1350 HV0.1,硬度的梯度分布比较平缓。The microstructure and properties of RE-N-C-S-V-Nb diffusion alloyed layer of H13 steel were investigated using X-ray diffraction,scanning electron microscopy,energy spectrum analysis and microhardness testing.The results show that the alloyed layer is mainly composed of NbN,VN,NbC,FeS and V8C7 phases.The thickness of alloyed layer is up to 100-120 μm,and the microstructure of the layer is continuous and compact.Moreover,the layer＇s microhardness can reach to 1350 HV0.1 and hardness gradient is relatively gentle.

关 键 词：H13钢 多元共渗渗层组织 显微硬度 

分 类 号：TG156.8[金属学及工艺—热处理]