In-situ synthesis of Fe-Mn-Si-Cr-Ni shape memory alloy functional coating by laser cladding

被引：1
|
作者：
徐鹏 [1 ]
鞠恒 [1 ]
林成新 [1 ]
周超玉 [1 ]
潘德位 [1 ]
机构：
[1] Transportation Equipment and Ocean Engineering College, Dalian Maritime University
来源：
ChineseOpticsLetters | 2014年 / 12卷 / 04期
基金：
高等学校博士学科点专项科研基金; 中央高校基本科研业务费专项资金资助;
关键词：
Mn; Fe; Si; Cr; AISI; Ni;
D O I：
暂无
中图分类号：
TG174.4 [金属表面防护技术];
学科分类号：
080503 ;
摘要：
Fe-Mn-Si-Cr-Ni composite powders are utilized to form a functional shape memory alloy cladding layer(SMACL)using a laser cladding method.The microstructure,microhardness,and phase composition of the SMACL are measured,and the extent of deformation of the laser cladding samples is determined.The SMACL is composed of planar,cellular,and dendritic crystals,equiaxed grains,and oxides with increasing distance from the substrate surface.The SMACL is further composed ofε-martensite andγ-austenite phases,while the tempered SMACL consists mainly ofγ-austenite.Extensive deformation occurs in AISI304 stainless steel laser cladding samples.By contrast,limited deformation is observed in the SMACL samples.
引用
收藏
页码：52 / 54
页数：3
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