摘要
研究了含0.34%C、0.90%B的Fe-C-B铸造合金及不同热处理的组织与性能。结果表明,合金凝固组织由珠光体、铁素体和硼化物组成,硬度和韧性较低;热处理改变了合金中基体和共晶硼化物分布形态,Fe-C-B合金的硬度为19.9～56 HRC,而韧性为4.4～7.3 J/cm2,其中水淬处理后的综合力学性能最好。
The microstructure and properties of Fe-C-B alloy containing 0.34%C and 0.90%B were studied by casting and different heat treatment. The results show that the as-cast alloy is made of eutectic pearlite, ferrtie and carbide boron, its hardness and toughness is low. The matrix of the alloy and distributional pattern of eutectic carbide was changed after heat treatment. The hardness of Fe-C-B alloy is between 19.9HRC and 56 HRC, and the toughness is between 4.4 J/cm2 and 7.3 J/cm2. The complex mechanical properties is best after water-quenching.
出处
《热加工工艺》
CSCD
北大核心
2011年第16期1-3,共3页
Hot Working Technology
基金
国家大学生创新性实验计划(091067408)
国家自然科学基金项目(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项目(07Z11437)
关键词
Fe-C-B合金
铸态
热处理
组织
性能
Fe-C-B alloy
as-cast
heat treatment
microstructure
properties
