45钢激光表面合金化
Laser Surface Alloying Coating on 45 Steel
姜 伟, 黄旭仁, 夏毅锐
点击：2794次 下载：0次
作者单位：海军航空工程学院 青岛分院, 山东 青岛 266041
中文关键字：激光合金化； 45钢； 微观组织； 显微硬度
英文关键字：laser surface alloying; 45 steel; microstructure; microhardness
中文摘要：为提高45钢的表面硬度，达到表面改性的目的，对表面镀镍的45钢进行了激光表面合金化，对合金化的表面进行了定性和定量分析。结果表明：合金化层组织为细小的枝晶，明显优于基体组织；合金化层平均硬度比基材提高3倍。
英文摘要：For enhancing hardness and achieving surface modification, the superficial nickel plating 45 steel was carried out by laser surface alloying, and the qualitative and quantitative analysis on the alloy quality were carried out. The qualitative analysis mainly aimed at the change of the alloy surface's microstructure. The quantitative analysis mainly aimed at the difference of alloy surface micro-hardness. The results indicate that, the microstructure with tiny crystal of alloying surface surpasss the substrate's. The average level of surface micro-hardness is 3 times in contrast with the substrate's.