期刊
MATERIALS LETTERS
卷 252, 期 -, 页码 342-344出版社
ELSEVIER
DOI: 10.1016/j.matlet.2019.06.030
关键词
Laser deposition manufacturing; Bimetallic structure; Interfaces; Microstructure; Microhardness
资金
- National Key Research and Development Program of China [2017YFB1104000]
Manufacturing of bimetallic structure from titanium (Ti-) to nickel (Ni-) based alloys has a specific interest in reducing the structure weight and making full use of individual excellent properties of the two kind metals. However, due to large differences in physical and chemical properties between the two metals, the laser deposition manufacturing (LDM) of Ti-/Ni-based alloys cannot avoid the cracking and brittle failure at the bond zone. In this work, the low-cost copper (Cu) was used as the bond layers for LDM of two model alloys TA15 and inconel 718 (IN718). Results showed that the Cu interlayer was very useful to eliminate the cracking and obtain a plastic transit between TA15 and IN718. Metallurgical bonds can also be achieved at the interfaces of the two alloys. (C) 2019 Elsevier B.V. All rights reserved.
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