摘要
通过金相显微镜观察、硬度及耐磨性测试,研究了涂层厚度、焊接电流对熔覆层组织、力学性能的影响。结果表明,基体与熔覆层连接处形成良好的冶金结合;在熔覆层厚度为3 mm,焊接电流为150 A时,显微组织中有大量的奥氏体与碳、硼化物共晶,熔覆层硬度和耐磨性很好。
The effects of thickness and welding currents on microstructure and mechanical properties of the cladding layer were analyzed by optical microscope observation, hardness and wear resistance test.The results show that the bonding layer forms between the cladding layer and substrate is a good metallurgically combination.When the cladding layer thickness is 3 mm and welding current is 150 A, high hardness and good wear resistance can be obtained due to the microstructure of cladding layer has lots of eutectic of austenite and carbide boride.
出处
《金属热处理》
CAS
CSCD
北大核心
2015年第1期68-70,共3页
Heat Treatment of Metals
关键词
氩弧熔覆
耐磨性
熔覆层
铁基自熔合金
argon arc cladding
wear resistance
cladding layer
Fe-based self-fluxing alloy
