Laser processed TiC-Al13Fe4 composite layer formation on Al-Si alloy

被引：12
|
作者：
Viswanathan, A. [1 ]
Sastikumar, D. [2 ]
Kumar, Harish [3 ]
Nath, A. K. [4 ]
机构：
[1] Anna Univ Technol, Dept Phys, Tiruchirappalli 620024, India
[2] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India
[3] Raja Ramanna Ctr Adv Technol, Ind Laser Sect CO2, Indore 452013, India
[4] Indian Inst Technol, Dept Mech Engn, Kharagpur 721302, W Bengal, India
来源：
OPTICS AND LASERS IN ENGINEERING | 2012年 / 50卷 / 09期
关键词：
Laser processing; TiC-reinforcement; TiC-Al13Fe4; coating; Wear resistive coatings; Al-Si alloy; SLIDING WEAR BEHAVIOR; 316L STAINLESS-STEEL; MICROSTRUCTURE;
D O I：
10.1016/j.optlaseng.2012.02.013
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
TiC reinforced with Al13Fe4 matrix composite layer is produced on Al-Si alloy using 5 kW CO2 laser. This attempt was made to identify the suitable coating compositions and laser processing parameters needed to form a TiC-Al13Fe4 composite layer. The study intended to form a composite layer which is having uniform TiC distribution, high hardness, high wear resistance and good adherence with substrate of Al-Si alloy. The results confirmed that the expected good quality composite layer has formed for the coating compositions of 75TiC-25Fe (wt%) and laser processing parameters of 2.5 kW laser power and 1.5 m min(-1) scanning speed. TiC particles size varies from 10 to 20 mu m are reinforced with in-situ formed Al13Fe4 matrix in the composite layer. The good quality composite layer is exhibited an average hardness of about 750 HV and hardness distributions show very minimum fluctuations. The effect of TiC reinforcement with Al13Fe4 matrix in the composite layer displayed very less wear rate (3.98 x 10(-7) mg m(-1)) than the substrate (3.85 x 10(-6) mg m(-1)). (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1321 / 1329
页数：9
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