Acta Metallurgica Sinica (English Letters) ›› 2011, Vol. 24 ›› Issue (3): 190-194.DOI: 10.11890/1006-7191-113-190

• 研究论文 • 上一篇    下一篇

Microstructure and Nano-Mechanical Property of Cold spray Co-base Resfractory Alloy Coating

梁永立   

  1. 宝钢股份研究院前沿技术研究所（201900）
  • 收稿日期:2010-12-01 修回日期:2011-02-28 出版日期:2011-06-25 发布日期:2011-06-13
  • 通讯作者: 梁永立

Microstructure and nano-mechanical property of cold spray Co-base refractory alloy coating

Yongli LIANG1，Bi SHI1, Xiaoping YANG1, Junbao ZHANG1,Xianming MENG2
   

  1. 1. Advanced Technology Institute, Baosteel Technology Center, Baoshan Iron & Steel Co., Shanghai 201900,China
    2. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
  • Received:2010-12-01 Revised:2011-02-28 Online:2011-06-25 Published:2011-06-13
  • Contact: Yongli LIANG

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Abstract: Co-base refractory alloy coating was prepared on carbon steel substrate by cold spray technology; microstructure and nano-mechenical property were examined by scanning electron microscope (SEM) and nano indenter individually. The results showed that about 250 μm Co-base refractory alloy coating could be deposited on steel substrate by cold spray technique, interface between coating and substrate was combined well, and the refractory alloy particle had a significant plastic deformation during deposition process; mixing Ni powders into Co-base refractory alloy powders could increase the density and decrease the nano-hardness of coating, the nano-hardness and elastic modulus of refractory alloy coating was higher than 6 GPa and 160~GPa, respectively.

Key words: Cold spray, Co-base refractory alloy, Microstructure, Nano-mechanical property