孙海霞,陈存广,张振威,郭志猛.低氧超细粉末制备高性能粉末高速钢[J].稀有金属材料与工程,2019,48(10):3246~3251.[Sun Haixia,Chen Cunguang,Zhang Zhenwei,Guo Zhimeng.PM high speed steel with high performance manufactured by super-fine powder with low oxygen content[J].Rare Metal Materials and Engineering,2019,48(10):3246~3251.]
低氧超细粉末制备高性能粉末高速钢
投稿时间:2018-04-07  修订日期:2018-04-24
中文关键词:  粉末高速钢  超细  低氧  组织  碳化物
基金项目:中央高校基本科研业务费专项资金项目(项目号FRF-TP-16-017A1)
中文摘要:
      通过电渣重熔-雾化制粉技术制备得到低氧、超细高速钢粉末,采用无包套-热等静压技术制备得到高性能粉末高速钢。研究了不同粒度、不同氧含量高速钢粉末对烧结特性的影响,对组织和性能进行了测试和分析。结果表明,高速钢粉末的平均粒度小于12 μm,氧含量小于100 ppm,烧结致密化后组织均匀、碳化物细小,经热处理后抗弯强度达4200 MPa,冲击功达22 J,硬度达65 HRC。
PM high speed steel with high performance manufactured by super-fine powder with low oxygen content
英文关键词:PM high speed steel  fine  low oxygen content  microstructure  carbide
英文摘要:
      In this paper, super-fine high-speed steel powders with low oxygen content were prepared by electroslag remelting and atomizing technology, and high-performance PM high-speed steels were fabricated by non-capsule hot isostatic pressing technique. The effects of different particle size and oxygen content of high-speed steel powders on sintering characteristics, microstructure and performance were studied. The results showed that due to the high-speed steel powder with the particle size of less than 12 μm and lower than 100 ppm oxygen, the as-sintered microstructure was uniform and carbides were fine. After heat treatment, the bend strength, impact toughness and hardness reached 4200 MPa, 22 J, and 65 HRC, respectively.
作者单位E-mail
孙海霞 北京科技大学 sunhaix_ustb@126.com 
陈存广 北京科技大学  
张振威 北京科技大学  
郭志猛 北京科技大学 zmguo@ustb.edu.cn 
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