江西科学
江西科學
강서과학
JIANGXI SCIENCE
2001年
1期
14-17
,共4页
廖钟亮%周哲%张小林%魏森泉%喻茂萍
廖鐘亮%週哲%張小林%魏森泉%喻茂萍
료종량%주철%장소림%위삼천%유무평
Y2O3%激光熔覆%Ni基合金%合金化层
Y2O3%激光鎔覆%Ni基閤金%閤金化層
Y2O3%격광용복%Ni기합금%합금화층
采用激光熔覆技术，在Q235低碳钢基体表面进行了Ni基合金添加Y2O3的熔覆试验。通过对激光工艺参数及合金粉末比例的优选，可以得到较理想的熔覆层。对熔覆的合金化层进行了表面显微硬度和电化学腐蚀测试以及金相组织和X衍射物相分析，结果表明Y2O3对Q235钢表面激光熔覆Ni基合金有减少裂纹的作用，但显微硬度与耐蚀性能有所下降。
採用激光鎔覆技術，在Q235低碳鋼基體錶麵進行瞭Ni基閤金添加Y2O3的鎔覆試驗。通過對激光工藝參數及閤金粉末比例的優選，可以得到較理想的鎔覆層。對鎔覆的閤金化層進行瞭錶麵顯微硬度和電化學腐蝕測試以及金相組織和X衍射物相分析，結果錶明Y2O3對Q235鋼錶麵激光鎔覆Ni基閤金有減少裂紋的作用，但顯微硬度與耐蝕性能有所下降。
채용격광용복기술，재Q235저탄강기체표면진행료Ni기합금첨가Y2O3적용복시험。통과대격광공예삼수급합금분말비례적우선，가이득도교이상적용복층。대용복적합금화층진행료표면현미경도화전화학부식측시이급금상조직화X연사물상분석，결과표명Y2O3대Q235강표면격광용복Ni기합금유감소렬문적작용，단현미경도여내식성능유소하강。
Using laser cladding technique, experiments of laser cladding Ni-base alloy powder with Y2O3added on Q235 steel surface were performed. Various laser processing parameters and different composition of alloy powder were chosen to get a perfect coating. The performance of surface micro-hardness and electrochemical corresion resistance were tested as well as micro-structure and X-ray diffr action substance were analyzed. Results indicated that Y2O3 decreased micro-crack at Q235 steel surface, after laser cladding Ni-base alloy with Y2O3 but micro-hardness and corresion resistance were also decreased.
