摘要
通过光学显微镜和扫描电镜观察以及硬度、冲击性能和耐磨性测试,研究了添加硼和热处理工艺对高铬白口铸铁组织和性能的影响。结果表明,对加硼0.5%的高铬白口铸铁进行热处理,在不降低韧性的情况下提高了耐磨性。改进的热处理工艺方案B与常规热处理工艺相比,改善了常规9645和含硼9630两种合金的磨损和硬度性能,而且提高了含硼9630合金的耐冲击性。
The effects of boron addition and heat treatment on the microstructure and properties of high chromium white cast iron were studied by optical microscopy and scanning electron microscopy, as well as the tests of hardness, impact properties and abrasion resistance. The results show that after the high chromium white cast iron with 0.5% boron addition is heat-treated, the wear resistance of the alloy can be increased without reducing the toughness. Comparing with the conventional heat treatment process, the improved heat treatment process B not only improves the wear resistance and hardness properties of two alloys including the traditional alloy 9645 and the boron-containing alloy 9630, but also improves the impact resistance of the boron-containing alloy 9630.
作者
吕刚磊
刘军
刘正颖
宋海涛
LU Gang-lei;LIU Jun;LIU Zheng-ying;SONG Hai-tao(College of Mechanical Engineering, Zhengzhou University of Science and Technology, Zhengzhou 450064, Henan, Chin)
出处
《铸造》
CAS
CSCD
北大核心
2018年第6期529-533,共5页
Foundry
基金
河南省高等学校重点科研项目(18B460020)
河南省科技厅自然科学项目(172102210536)
河南省科技厅科技计划项目(20171103000226)
关键词
高铬白口铸铁
加硼合金
热处理工艺
铸铁组织
力学性能
high chrome white cast iron
boron-containing alloy
heat treatment process
cast iron microstructure
mechanical property
