Laser cladding of a featureless iron-based alloy

被引：28
|
作者：
Aghasibeig, Maniya [1 ]
Fredriksson, Hasse [1 ]
机构：
[1] Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden
来源：
SURFACE & COATINGS TECHNOLOGY | 2012年 / 209卷
关键词：
Laser cladding; Iron-based alloys; Featureless phase; Epsilon phase; COMPOSITE COATINGS; MO; SI; MICROSTRUCTURE; BEHAVIOR; PHASE;
D O I：
10.1016/j.surfcoat.2012.08.013
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Laser cladding experiments with powder injection technique were carried out to create coatings of Fe-8.1Cr6.4Mn-5.3Si-6.9Mo-3.6C alloy on AISI 1018 steel substrates using a diode laser. Analysis of the clad layers showed that an almost featureless structure was formed at different dilutions between 1% and 4%. The featureless phase with a high hardness of 1155 HV was characterized as a metastable solid solution of e phase. However, the featureless structure appeared to be very brittle with numerous cracks. After heat-treatment, it decomposed into a bainitic structure with a high hardness of 884 HV. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：32 / 37
页数：6
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