Microstructural Evolution and Functional Properties of Fe-Mn-Al-Ni Shape Memory Alloy Processed by Selective Laser Melting

被引：45
|
作者：
Niendorf, Thomas [1 ]
Brenne, Florian [2 ]
Krooss, Philipp [1 ,3 ]
Vollmer, Malte [1 ,3 ]
Gunther, Johannes [3 ]
Schwarze, Dieter [4 ]
Biermann, Horst [3 ]
机构：
[1] Univ Kassel, Inst Werkstofftech, D-34125 Kassel, Germany
[2] Univ Paderborn, Lehrstuhl Werkstoffkunde, Warburger Str 100, D-33098 Paderborn, Germany
[3] TU Bergakad Freiberg, Inst Werkstofftech, D-09599 Freiberg, Germany
[4] SLM Solut GmbH, D-23556 Lubeck, Germany
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2016年 / 47A卷 / 06期
关键词：
ABNORMAL GRAIN-GROWTH; SINGLE-CRYSTALS; SUPERELASTIC RESPONSE; TECHNOLOGIES; DEFORMATION; COMPRESSION; ORIENTATION; PERFORMANCE; MARTENSITE; MECHANISMS;
D O I：
10.1007/s11661-016-3412-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the current study, a Fe-Mn-Al-Ni shape memory alloy is processed by additive manufacturing for the first time. Microstructural evolution upon processing is strongly affected by thermal gradients and solidification velocity and, thus, by processing parameters and the actual specimen geometry. By single-step solutionizing heat treatment pronounced grain growth is initiated leading to microstructures showing good reversibility. The compressive stress-strain response revealed maximum reversible pseudo-elastic strain of about 7.5 pct. Critical steps toward further optimization of additively manufactured Fe-Mn-Al-Ni shape memory alloys are discussed. (C) The Minerals, Metals & Materials Society and ASM International 2016
引用
收藏
页码：2569 / 2573
页数：5
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