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| 钛合金表面激光熔覆原位生成TiC增强复合涂层 | |
| 引用本文： | 张松,张春华,康煜平,吴维,王茂才,文交/力忠.钛合金表面激光熔覆原位生成TiC增强复合涂层[J].中国有色金属学报,2001,11(6):1026-1030. |
| 作者姓名： | 张松 张春华 康煜平 吴维 王茂才 文交/力忠 |
| 作者单位： | 1. 沈阳工业大学材料科学与工程学院, 2. 中国科学院 3. 香港理工大学, |
| 摘 要： | 利用Cr3C2和TiC生成自由能和稳定性的差异，通过激光熔化法在Ti6Al4V表面制备TiC颗粒增强钛基复合材料涂层，结果表明：选择合适的激光处理工艺，可使Cr3C2和Ti合金粉末通过原位结晶置换反应生成TiC/Ti复合材料熔覆层。亚微米级的TiC颗粒均匀地分布于复合材料的基体中，复合材料的基体组织随合金粉末的成分不同而改变。 |
| 关 键 词： | 钛合金 激光熔覆 复合材料涂层 原位自生 |
| 文章编号： | 1004-0609(2001)06-1026-05 |
| 修稿时间： | 2000年12月21 |
Mechanism of in-situ formation of TiC particle reinforced Ti-based composite coating induced by laser melting |
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| ZHANG Song ,ZHANG Chun hua ,KANG Yu ping ,WU Wei tao ,WANG Mao cai ,H.C.Man.Mechanism of in-situ formation of TiC particle reinforced Ti-based composite coating induced by laser melting[J].The Chinese Journal of Nonferrous Metals,2001,11(6):1026-1030. | |
| Authors: | ZHANG Song ZHANG Chun hua KANG Yu ping WU Wei tao WANG Mao cai HCMan |
| Affiliation: | ZHANG Song 1,2,ZHANG Chun hua 1,KANG Yu ping 1,WU Wei tao 2,WANG Mao cai 2,H.C.Man 3 |
| Abstract: | A new Ti based composite coating reinforced with fine and dispersive TiC particles was prepared on Ti alloy of Ti6Al4V by laser induced reaction of Cr 3C 2 and Ti with respecting the large difference of the thermal stability between Cr 3C 2 and TiC. The results show that laser induced melting is helpful for the formation of this kind of composite coating provided a suitable sets of processing parameters and the ratio of Cr 3C 2 to Ti are selected. The in situ replacing reaction of Cr 3C 2 with Ti does surely produce a TiC/Ti composite layer containing fairy uniformly distributed fine TiC particles of sub micrometers and with good bonding to the substrate. The microstructure of the coating can easy be controlled by varying the chemical composition of the powder mixtures pre placed and also the processing parameters. |
| Keywords: | titanium alloy laser cladding composite coatings in situ synthesis |
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