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) |
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| Author | Institution |
| 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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