铸铁表面激光熔敷FeCrNiSiB自熔合金  

Laser Cladding of FeCrNiSiB Alloy on Gray Cast Iron

作　　者：胡乾午[1] 陈祖涛[1] 李志远[1] 胡席远[1] 

机构地区：[1]华中理工大学

出　　处：《表面技术》1995年第1期14-16,共3页Surface Technology

摘　　要：通过激光熔敷FeCrNiSiB自熔合金,在普通灰铸铁表面获得抗磨损耐腐蚀的硬化层,实现了表面强化与韧化的良好结合。研究了合金成分及激光工艺参数对其组织和性能的影响,结果表明,与基体相比,其耐磨性提高4～5倍。By laser cladding of FeCrNiSiB self-fluxing alloy powders using a CO2 Laser,a hardening surface on gray cast iron with wear resistance and corrosion resistance was obtained. The better combination of surface strengthening and toughening was realized. The influence of alloy composition and laser processing parameters upon microstruc-ture and mechanical properties was also disscussed. The results show that the wear resistance is superior to the substrate by 4 or5 times.

关 键 词：灰铸铁 激光熔敷 耐磨 耐蚀 合金 热处理 

分 类 号：TG156.99[金属学及工艺—热处理]