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首页> 外文期刊>Crystal growth & design >Analysis of the growth morphology of TiB and the microstructure refinement of the coatings fabricated on Ti-6Al-4V by laser boronizing
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Analysis of the growth morphology of TiB and the microstructure refinement of the coatings fabricated on Ti-6Al-4V by laser boronizing

机译:TiB的生长形态分析和Ti-6Al-4V激光渗硼制备的涂层的组织细化

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摘要

Coatings mainly containing the stick TiB strengthening phase have been fabricated on a Ti-6Al-4V alloy by laser boronizing. Results show that the coating microstructure is refined by the addition of boron. The growth model of stick TiB is mainly attributed to the lattice characteristics of TiB, and the mechanism of the microstructure refinement is attributed to the pre-eutectic TiB crystal embryos acting as heterogeneous nuclei and the growth obstruction of the formed crystals caused by TiB during the solidification.
机译:通过激光渗硼在Ti-6Al-4V合金上制备了主要包含棒状TiB强化相的涂层。结果表明,通过添加硼可以改善涂层的微观结构。棒状TiB的生长模型主要归因于TiB的晶格特征,而微观结构细化的机制归因于共晶前的TiB晶体胚充当异质核,并且在形成过程中TiB导致形成的晶体生长受阻。凝固。

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