【摘要】 以Fe3Al合金为焊丝,用钨极氩弧焊在不锈钢基体上进行堆焊试验,考察堆焊层的高温抗氧化性能。结果表明:用钨极氩弧焊可以成功地获得Fe3Al合金堆焊层;在温度低于1000℃时,堆焊层具有优异的抗氧化性能;温度超过1000℃时,堆焊层的抗氧化性能随温度上升急剧下降;950℃时堆焊层的氧化 增重曲线近似于抛物线。更多还原

【Abstract】 Overlaying welding was conducted on austenitic stainless steel using gas arc tungsten welding process with Fe₃Al as welding wire. Results show that Fe₃Al overlayer could be acquired and provided with remarkable anti-oxidation property below the temperature of 1 000℃; while above 1 000℃, it showed an acute decrease in such property. Oxidation-massgain curve of overlayer approximately followed parabolic law at the temperature of 950℃.更多还原