引用本文:马江虹，于月光，薛文涛，黄敬勇.耐磨耐热堆焊焊条的制备研究[J].中国表面工程,2006,(7):165~168
MA Jiang-hong, YU Yue-guang, XUE Wen-tao, HANG Jing-yong.Research on the wear-resisting and heat-resisting deposit welding rode[J].China Surface Engineering,2006,(7):165~168
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耐磨耐热堆焊焊条的制备研究
马江虹，于月光，薛文涛，黄敬勇
北京矿冶研究总院，北京100044
摘要:
选择Ni–Co–Cr–B–C为基本合金体系，经过机械球磨混合、挤压成形、真空烧结方法制备了耐磨耐热堆焊焊条，采用钨极氩弧焊在高温铸造合金基材上堆焊耐磨耐热堆焊层，对堆焊层的组成、结构进行了分析，XRD分析和热力学计算表明焊层组成为Co、Ni为主的面心立方合金、M23(C,B)6或M23C6，还有少量的C7M3和M3B2。洛氏硬度检测堆焊层的硬度平均值为49.5HRC，并且具有较好高温抗氧化性能。
关键词:  耐磨耐热  堆焊焊条  钨极氩弧焊  高温抗氧化性
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Research on the wear-resisting and heat-resisting deposit welding rode
MA Jiang-hong, YU Yue-guang, XUE Wen-tao, HANG Jing-yong
Beijing General Research Institute of Mining & Metallurgy, Beijing, 100044, China
Abstract:
The wear-resisting and heat-resisting deposit welding rod with Ni-Co-Cr-B-C as the basic alloy system was prepared by mechanical ball milling mixture, sintering after extrusion shaping method. The welding layer on the high temperature casting alloy was obtained using the way of argon tungsten-arc welding. The component and the structure of the welding layer were characterized. XRD and thermodynamics calculation results show that the welding layer contains fcc-alloy containing Co and Ni,M23(C,B)6 or M23C6 and a small amount of C7M3 and M3B2. The hardness average number of the welding layer with high temperature oxidation-resisting performance was HRC49.5.
Key words:  wear-resisting and heat-resisting  deposit welding rod  argon tungsten-arc welding  high temperature oxidation-resisting performance
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