吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊2): 198-201.

• 论文 • 上一篇    下一篇

等离子喷焊层NiCrBSi+WC/Co的组织与性能

商延赓1, 王文权2, 黄诗铭2, 李秀娟1, 张桂兰1   

  1. 1. 吉林大学 工程仿生教育部重点实验室, 长春130022;
    2. 吉林大学 汽车材料教育部重点实验室, 长春130022
  • 收稿日期:2011-01-24 出版日期:2011-09-30 发布日期:2011-09-30
  • 通讯作者: 王文权(1971),男,副教授。研究方向:材料加工。E-mail:wwq@jlu.edu E-mail:wwq@jlu.edu
  • 作者简介:商延赓(1964),男,工程师。研究方向:材料加工。E-mail:shangyangeng@163.com
  • 基金资助:

    吉林省科技发展计划项目(20100328,20116006)

Microstructures and properties of plasma surfaced NiCrBSi+WC/Co layers

SHANG Yan-geng1, WANG Wen-quan2, HUANG Shi-ming2, LI Xiu-juan1, ZHANG Gui-lan1   

  1. 1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China;
    2. Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130022, China
  • Received:2011-01-24 Online:2011-09-30 Published:2011-09-30

摘要:

利用等离子喷焊技术在H13模具钢表面制备NiCrBSi+20%WC/Co喷焊层。研究表明,基体与喷焊层之间存在明显的分界面,与传统焊接接头的微观组织类似,喷焊层中出现垂直于界面结合方向的柱状晶,这种组织形态在等离子喷涂涂层中从未观察到,说明喷焊层NiCrBSi+20%WC/Co与H13钢基体之间的结合为冶金结合。XRD分析表明,喷焊层中的主要相为γ-(Fe,Ni),Cr7BC4,Ni4B3,Cr7C3和Co7W6,并且由于这些相的存在,使得表面喷焊层比H13钢基体具有更高的强度和硬度。

关键词: 材料合成与加工工艺, 等离子喷焊, NiCrBSi+WC/Co, 组织与性能

Abstract:

Microstructures and properties of plasma surfaced NiCrBSi+20%WC/Co layer prepared on the die steel(H13) substrate were investigated.The study showed that the interface boundary existed between the layer and substrate.compared with the typical microstructures of welded joint,the similar columnar grains in the layer perpendicular to the interface line were observed,which were never seen in the plasma sprayed coating.The conclusion could be drawn that the bonding between the NiCrBSi+20%WC/Co layer and H13 substrate belonged to the metallurgical cohesion.The XRD analysis showed that the main phases in the layer includedγ-(Fe,Ni),Cr7BC4,Ni4B3,Cr7C3 and Co7W6,which brought higher strength and higher hardness to the surfaced layer than the H13 substrate.

Key words: materials synthesis and processing technology, plasma surfaced layer, NiCrBSi+WC/Co, microstructures and properties

中图分类号: 

  • TG457


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