TC4钛合金表面激光熔覆Ti-Al涂层研究

doi:10.3976/j.issn.1002-4026.20230112

Abstract

Abstract:

Titanium alloys possess excellent properties like low density, high specific strength, and corrosion resistance. So, these alloys are widely used in the aerospace. With the development of aerospace, the usage ratio of such alloys is one of the criteria to measure whether the aerospace equipment is advanced or not. Because these alloys show low hardness and wear resistance, fretting wear becomes an important cause for the failure of titanium alloy parts. To improve the fretting wear resistance, laser cladding was used to produce a coating on the surface of TC4 alloy in this study. The results showed that the hardness and wear resistance of TC4 alloy were improved by laser cladding Ti-Al powder.

Key words: TC4 titanium alloy, laser cladding, antioxidation, wear-resistant coating

CLC Number:

TB31

SUN Yongshuo, WEN Daosheng, QIAN Chunguang, ZHANG Minghao, LÜ Qinghua, ZHANG Mingyuan, WANG Shouren, WANG Xinwei. Laser cladding Ti-Al coating on TC4 titanium alloy surface[J].Shandong Science, 2024, 37(3): 55-65.

Figures/Tables 10

Table 1

Experimental parameters of fretting friction and wear"

参数名称	参数数值
法向载荷 $F n$ /N	40、80、120、160
位移幅值 $D$ /μm	80
往复频率 $f$ /Hz	20
循环次数 $N$ /次	36 000
实验温度t/℃	20~25

Table 1

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References 13

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Laser cladding Ti-Al coating on TC4 titanium alloy surface

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