Title of article
Study on Fe–Al–Si in situ composite coating fabricated by laser cladding
Author/Authors
Long-zhi Zhao، نويسنده , , Ming-Juan Zhao، نويسنده , , De-Ying Li، نويسنده , , Jian Zhang، نويسنده , , Guang-Yao Xiong، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
5
From page
3368
To page
3372
Abstract
Fe–Al–Si in situ composite coating was fabricated on the surface of ASTM A283Gr.D steel by laser cladding with the preplaced powder. The influence of powder composition, laser power and scanning speed on microstructure, microhardness and wear resistance were investigated in this paper. The results show that Fe–Al–Si in situ composite coating with the good metallurgical bond mainly consists of Fe, SiO2 and Al2Fe3Si4 intermetallic compound. With the increase of laser power and scanning speed, the grain size of coating gets the minimum value. With the increase of laser power and scanning speed, microhardness and wear resistance both get the peak vaule, and their value are three times and 3.5 times those of substrate, respectively. The optimum parameters are followed as: the ratio of the preplaced composite powder: 8:1:1, laser power: 1600 W and scanning speed: 400 mm/min.
Keywords
Laser cladding , Wear resistance , Microhardness , Fe–Al–Si in situ composite coating
Journal title
Applied Surface Science
Serial Year
2012
Journal title
Applied Surface Science
Record number
1004622
Link To Document