| 激光合金化过渡区显微结构的观察SCIEI |
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| 引用本文： | 程永兴,李根富,余少罗. 激光合金化过渡区显微结构的观察SCIEI[J]. 金属学报, 1990, 26(1): 64-68 |
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| 作者姓名： | 程永兴 李根富 余少罗 |
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| 作者单位： | 上海工程技术大学五系，上海工程技术大学，上海工程技术大学 上海(200051) |
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| 摘 要： | 本文采用EPMA,AES和SEM技术,观察到Fe-Ni-Cr合金涂层和45号钢基体激光合金化后,其熔化区和热影响区之间的过渡区,存在明显的化学不均匀性特征,高温回火时尤为严重,以致形成过渡区一侧脱碳,而熔化区一侧增碳的现象。
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| 关 键 词： | 激光 合金化 过渡区 非均匀性 涂层 laser alloying heterogeneity transition zone microstructure |
| 收稿时间： | 1990-01-18 |
| 修稿时间： | 1990-01-18 |
OBSERVATION ON MICROSTRUCTURE OF LASER MELTED TRANSITION ZONE |
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| CHENG YongXing,LI Genfu,YU Shaoluo Shanghai University of Engineering Science Department No.,Shanghai University of Engineering Science,Shanghai. OBSERVATION ON MICROSTRUCTURE OF LASER MELTED TRANSITION ZONE[J]. Acta Metallurgica Sinica, 1990, 26(1): 64-68 |
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| Authors: | CHENG YongXing LI Genfu YU Shaoluo Shanghai University of Engineering Science Department No. Shanghai University of Engineering Science Shanghai |
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| Abstract: | The surface alloying specimen was made of the steel 45 substrate overcoating byoxygen-acetylene flame spraying Fe-Ni-Cr alloy powder and laser remelted. The chemical heter-ogeneity was clearly observed on the transition zone between the laser melted zone and heat-affected zone by means of EPMA, AES and SEM. This heterogeneity is rather serious duringhigh temperature tempering, so the decarburization on the transition zone side and the recarbu-rization on the melted zone side were found. |
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| Keywords: | laser alloying heterogeneity transition zone microstructure |
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