| 激光重熔氧化锆陶瓷涂层的相变过程 |
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| 引用本文： | 周大恂,李平,刘建寿.激光重熔氧化锆陶瓷涂层的相变过程[J].洛阳工业高等专科学校学报,1998(4). |
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| 作者姓名： | 周大恂 李平 刘建寿 |
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| 作者单位： | 洛阳工业高等专科学校校长办公室(周大恂)，洛阳工业高等专科学校机械工程系(李平，刘建寿) |
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| 摘 要： | 钛合金表面等离子喷涂氧化锆涂层激光重熔后,得到重熔区、过渡区和热影响区。本文采用SEM、TEM和X射线衍射对激光重熔前后各区的相变过程进行了研究。结果表明喷涂涂层激光重熔后,重熔区C-ZrO_2失稳得到T-ZrO_2,但无大量的M-ZrO_2出现过渡区由熔池底部的α-Ti和其前沿的粒状ZrO_2组成。粒状组织内由T-ZrO_2、M-ZrO_2和C-ZrO_2三相组成。
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| 关 键 词： | 氧化锆 相变 激光重熔 |
Phase Transformation Process of Ceramic Coating ZrO_2 Remelted by Laser |
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| Zhou,Daxun,LiPing,Liu,Jianshou.Phase Transformation Process of Ceramic Coating ZrO_2 Remelted by Laser[J].Journal of Luoyang Technology College,1998(4). |
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| Authors: | Zhou Daxun LiPing Liu Jianshou |
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| Institution: | Zhou Daxun LiPing Liu Jianshou |
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| Abstract: | Coating of ZrO2 that was sprayed onto titanium alloy surface by plasma was remelted by laser , laser remelted layer is composed by remelting zone and transiting zone and heat influence zone . In this paper , phase transformation process of each zone was studied by SEM and TEM and X-ray diffraction. The paper point out: after coating of ZrO2 was remelted by laser , within remelting zone C-ZrO2 is changed to T- ZrO2 , but a large amount of M -ZrO2 Does not occur. The transiting zone is composedy by o-Ti at the bottom of molten pool and granular ZrO2 at the front. The granular structure consists of T-ZrO2 , M-ZrO2and C-ZrO2 three phase. |
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| Keywords: | zro2 phase transformation process remelted by laser |
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