摘要
利用废弃的轴承钢GCr15和WC粉末通过离心铸造法制取WC/钢基复合材料(LGJW20);研究了热处理对其组织结构的影响。结果表明,在退火过程中,组织中的碳化物发生了溶解析出,碳化物的形态得到改善,材料的硬度升高;在淬火回火过程中,随回火温度的升高,组织中碳化物的溶解析出愈严重,材料的硬度不断下降。
WC/steel composite （LGJW20） was prepared by centrifugal casting using scrap bearing steel GCr15 and WC powder. The influences of heat treatment on the microstructure of LGJW20 were studied. The results show that carbides in microstructure dissolve and separate during annealing, which improve the shapes of carbide and increase the hardness of material. During quenching and tempering,dissolution and separation of carbides in microstructure become more seriously with the tempering temperature increasing, and the hardness of the composite reduces.
出处
《热加工工艺》
CSCD
北大核心
2012年第6期141-143,共3页
Hot Working Technology
基金
2012年度安徽省高校省级自然科学研究项目(KJ2012Z213)
安徽高校省级自然科学研究计划资助项目(KJ2008B276)
