黄祖凤,张冲,唐群华,戴品强,吴波.退火对激光熔覆 FeCoCrNiB 高熵合金涂层组织结构与硬度的影响[J].表面技术,2013,42(1):9-13.
HUANG Zu-feng,ZHANG Chong,TANG Qun-hua,DAI Pin-qiang,WU Bo.Effects of Annealing on the Microstructure and Hardness of Laser Cladding FeCoCrNiB High-entropy Alloy Coating[J].Surface Technology,2013,42(1):9-13
退火对激光熔覆 FeCoCrNiB 高熵合金涂层组织结构与硬度的影响
Effects of Annealing on the Microstructure and Hardness of Laser Cladding FeCoCrNiB High-entropy Alloy Coating
投稿时间:2012-09-13  修订日期:2012-10-14
DOI:
中文关键词:  高熵合金  涂层  激光熔覆  高温退火
英文关键词:high-entropy alloy  coating  laser cladding  high temperature annealing
基金项目:国家自然科学基金资助项目(51171046,50971043) ;福建省自然科学基金资助项目( 2012J01202 ) ;福建省高校产学合作重大项目(2010H60001)
作者单位
黄祖凤 福州大学 材料科学与工程学院, 福州 350108 
张冲 福州大学 材料科学与工程学院, 福州 350108 
唐群华 福州大学 材料科学与工程学院, 福州 350108 
戴品强 福州大学 材料科学与工程学院, 福州 350108;福建工程学院 材料科学与工程学院, 福州 350108 
吴波 福州大学 材料科学与工程学院, 福州 350108 
AuthorInstitution
HUANG Zu-feng College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108 , China 
ZHANG Chong College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108 , China 
TANG Qun-hua College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108 , China 
DAI Pin-qiang College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108 , China;Department of Materials Science and Engineering, College of Fujian University of Technology, Fuzhou 350108, China 
WU Bo College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108 , China 
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中文摘要:
      在 Q235 钢基材表面制备 FeCoCrNiB 高熵合金涂层,涂层致密,无裂纹和气孔,由条状 M3B 相和基体 fcc 相两相组成。 分析了涂层具有这种相组成的原因。 研究了高温退火对涂层组织结构及硬度的影响,结果表明:900 ℃ 或 1000 ℃ 退火后,涂层中析出了颗粒状和短棒状的 M3B 相;1150 ℃ 退火后,条状、颗粒状和短棒状组织均消失,形成了粗大的块状 M3B 相,块状组织硬度达 1188 HV;涂层具有较好的耐高温软化性能,900 ℃ 或1000 ℃ 退火后,硬度仅分别下降约 7% 和 9% 。
英文摘要:
      FeCoCrNiB high-entropy alloy coating was prepared on the Q235 steel substrate. The coating is free of crack and pore defect, which is composed of rod-like M3B phase and fcc matrix phase. Formation mechanism of the phases was analyzed. Effects of high temperature annealing on microstructure and microhardness were investigated. The results show: after annealed at 900 ℃ and 1000 ℃ , some granular and short rod-like M3B phase are precipitated in coating; After annealed at 1150 ℃ , rod-like, granular and short rod-like structure disappear, a blocky M3B phase formes, the microhardness of blocly phase is 1188 HV; The coating exhibits excellent resistance to high temperature softening, the decrease of microhardness is only about 7 % and 9 % after annealed at 900 ℃ and 1000 ℃ .
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