Defocusing Effects of Laser Beam on the Weldability of Powder Metallurgy Ti-Based Shape Memory Alloys

被引：7

作者：

Bahador, Abdollah ^{[1
]}

Hamzah, Esah ^{[1
]}

Kondoh, Katsuyoshi ^{[2
]}

Abubakar, T. ^{[1
]}

Yusof, Farazila ^{[3
]}

Saud, Safaa N. ^{[4
]}

Ibrahim, Mustafa K. ^{[1
]}

Ezazi, M. A. ^{[3
]}

机构：

[1] Univ Teknol Malaysia, Fac Mech Engn, Utm Johor Bahru 81310, Johor, Malaysia

[2] Osaka Univ, JWRI, 11-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan

[3] Univ Malaya, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

[4] Management & Sci Univ, Fac Informat Sci & Engn, Shah Alam 40100, Malaysia

来源：

ADVANCES IN MATERIAL & PROCESSING TECHNOLOGIES CONFERENCE | 2017年 / 184卷

关键词：

Fiber laser welding; Shape memory alloys; powder metallurgy; microwave sintering; furnace sintering; BEHAVIOR; MICROSTRUCTURE; COMPACT; STEEL;

D O I：

10.1016/j.proeng.2017.04.087

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of defocusing distance of the fiber laser welding on Ti-51at%Ni, Ti-28%atNb and Ti-30at%Ta shape memory alloys (SMAs) was investigated. These alloys were produced by powder metallurgy (P/M) and sintered by furnace and microwave processes. The experimental results showed that the furnace-sintered Ti-Ni welds have the maximum porosity density and the lowest weld quality. While, the microwave sintered alloys of Ti-Nb and Ti-Ta SMAs presented better weldability, even though porosities were still observed. Ti-Ta SMA showed the best welding quality compared with the other welded joints. It can be concluded that porosities play important role in the welding of powder metallurgy alloys and in order to achieve high-quality welds, the porosities should be minimized. (C) 2017 Published by Elsevier Ltd.

引用

页码：205 / 213

页数：9

共 20 条

[1] Recent development of TiNi-based shape memory alloys
Cai, W.
Meng, X. L.
Zhao, L. C.
[J]. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2005, 9 (06) : 296 - 302
[2] Effects of Process Parameters upon the Shape Memory and Pseudo-Elastic Behaviors of Laser-Welded NiTi Thin Foil
Chan, C. W.
Man, H. C.
Yue, T. M.
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2011, 42A (08): : 2264 - 2270
[3] Studies on weldability of iron-based powder metal alloys using pulsed gas tungsten arc welding process
Correa, E. O.
Costa, S. C.
Santos, J. N.
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (08) : 3937 - 3942
[4] Powder metallurgy technology of NiTi shape memory alloy
Dutkiewicz, M.
Maziarz, W.
Czeppe, T.
Litynska, L.
Nowacki, W. K.
Gadaj, S. P.
Luckner, J.
Pieczyska, E. A.
[J]. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2008, 158 (1) : 59 - 65
[5] Effect of iron particle size on the diffusion bonding of Fe-5%Cu powder compact to wrought carbon steels
Fillabi, M. G.
Simchi, A.
Kokabi, A. H.
[J]. MATERIALS & DESIGN, 2008, 29 (02) : 411 - 417
[6] HAMILL JA, 1991, INT J POWDER METALL, V27, P363
[7] Investigations on the continuous drive friction welding of sintered powder metallurgical (P/M) steel and wrought copper parts
Jayabharath, K.
Ashfaq, M.
Venugopal, P.
Achar, D. R. G.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 454 : 114 - 123
[8] Kabir A., 2010, Material Science and Technology (MST), Laser Application in Material Processing, V4, P2787
[9] Effect of Ta addition on shape memory behavior of Ti-22Nb alloy
Kim, HY
Hashimoto, S
Kim, JI
Inamura, T
Hosoda, H
Miyazaki, S
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 417 (1-2): : 120 - 128
[10] Shape memory characteristics of Ti-22Nb-(2-8)Zr(at.%) biomedical alloys
Kim, JI
Kim, HY
Inamura, T
Hosoda, H
Miyazaki, S
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 403 (1-2): : 334 - 339

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