摘要
在分析含碳0.61%、含硼1.56%的Fe-C-B合金凝固组织和性能的基础上,研究了淬火温度对其组织和性能的影响。结果表明,Fe-0.61C-1.56B合金凝固组织主要由共晶硼化物、珠光体和铁素体构成,经过950℃～1100℃淬火处理后,共晶硼化物和奥氏体的形态发生变化,基体转变为淬火马氏体,Fe-C-B合金的硬度和韧性较铸态有改善,在1050℃淬火时,合金的硬度和韧性达到最佳。
The microstructure and meehanical properties of Fe-C-B alloy with O. 61% C and 1.56% B were observed and tested, the effect of quenehing temperature on microstructure and mechanical properties of the alloy was investigated. The results show that the microstructure of Fe-O. 61C-I. 56B alloy as-cast is mainly composed of eutectic boride, pearlite and ferrite. The forms of eutectic boride and austenite are changed after quenched at 950-1100℃, and the matrix transforms to martensite. Hardness and toughness of the quenched Fe-C-B alloy are improved and can get a preferable value when quenched at 1050℃.
出处
《金属热处理》
CAS
CSCD
北大核心
2013年第2期67-70,共4页
Heat Treatment of Metals
基金
国家自然科学基金(50701020)
云南省应用基础研究计划(2007E034M)
云南省教育厅重点科研基金(07Z11437)
云南省科技条件平台建设(2010DH20)
关键词
Fe-C-B合金
淬火温度
组织
力学性能
Fe-C-B alloy
quenching temperature
microstructure
mechanical properties
