LASER PROCESSING AND MICROSTRUCTURE OF AL-CU-FE QUASI-CRYSTALLINE COATINGS ON AL-BASE MATERIALS

被引：3
|
作者：
SALLAMAND, P
PELLETIER, JM
机构：
[1] INSA, Villeurbanne
来源：
JOURNAL DE PHYSIQUE IV | 1994年 / 4卷 / C4期
关键词：
D O I：
10.1051/jp4:1994434
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
There is a large interest in using high power lasers for surface alloying or cladding on aluminium alloys, in order to enhance hardness and to improve wear resistance. A partly quasicrystalline surface layer (QC) (Al-Cu-Fe coating) has been obtained by laser cladding on Al-base materials. In addition to crystalline phases (Al5Fe2 and Al13Fe4, with dissolved copper), a quasicrystalline Al-Cu-Fe phase is detected. However, crystallization of this quasicrystalline phase occurs during isothermal heat treatment at 525-degrees-C. A mechanism is proposed for the solidification process resulting from laser cladding.
引用
收藏
页码：155 / 158
页数：4
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