田玉亮,李杰.几种微量元素对铁基激光熔覆层组织与性能的影响[J].热喷涂技术,2020,12(1):45~50.
几种微量元素对铁基激光熔覆层组织与性能的影响
Effect of Several Trace Elements Content on the Structure and Properties of Fe-Based Laser Cladding Layers
  
DOI:10.3969/j.issn.1674-7127.2020.01.007
中文关键词:  激光熔覆  铁基合金  微量元素
英文关键词:Laser cladding  Fe- based alloy  Trace elements
基金项目:
     
作者单位
田玉亮 北京矿冶科技集团有限公司
李杰 北矿新材科技有限公司
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中文摘要:
      通过激光工艺制备铁基合金无裂纹熔覆层, 探讨 C、 V+W 几种微量元素含量变化对熔覆层物相组成、 显 微组织及其性能的影响。 试验结果表明, 微量元素对熔覆层组织影响不大, 熔覆层组织均匀, 均为细密枝晶组织; 在一定范围内, 熔覆层的硬度、 腐蚀性能随着 C 含量的升高分别增加、 降低; 保持 C0.1% 含量不变, 适当降低 Ni 元素、 增加 V+W 元素, 熔覆层硬度增加, 但腐蚀性能降低。
英文摘要:
      Several kinds of Fe–Based alloy cladding layers were obtained by using a CO2 laser on 27SiMn steel surface. The effect of C, V+W content on the phase composition, microstructure, hardness and corrosion resistance had been studied. The results showed that the influence of trace elements on the microstructure of cladding layer was not significant. The cladding layer was uniform with fine dendrite structure. The hardness increased and corrosion resistance decreased with the increase of C content within limits. For the cladding layer, when the C content was 0.1%, the decrease of Ni elements and increase of V+W elements resulted in the increase of hardness and the decrease of corrosion resistance.
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