摘要
采用电弧熔炼母合金、感应加热熔化、铜模吸铸工艺,制备了厚度为1mm的板状FeCoZrMoWB系Fe基大块非晶合金,铸态试样表面及断口光亮,具有典型的金属光泽,但脆性严重。本文采用压痕试验法研究了热处理工艺对铸态Fe基大块非晶合金脆性的影响。结果表明,合适的退火工艺可使Fe基大块非晶合金的断裂韧度提高到铸态的260%。
A plate Fe-Co-Zr-Mo-W-B Fe-based bulk amorphous alloy of the thickness of 1 mm was prepared with processes of arc melting alloy ingots, inductive melting and copper mold suction casting. The surfaces and fractures of the cast bulk amorphous alloy samples are agleam and with typical metallic luster, however, the brittleness of the cast alloy is obvious. The effect of heat treatment on the brittleness of the cast alloy was studied by indentation technique. The results show that a proper annealing can increase the fracture toughness to 260% of that as cast.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2005年第7期74-77,共4页
Heat Treatment of Metals
基金
江苏省自然科学基金项目(BK2001053)
江苏省高校自然科学研究指导性计划项目(03KJD430005)
关键词
Fe基大块非晶合金
热处理
压痕试验法
断裂韧度
Fe-based bulk amorphous alloy
heat treatment
indentation test
fracture toughness
