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Interfacial reaction and microstructure investigation of 4J36/Ni/Cu/V/TC4 diffusion-bonded joints.
- Source :
-
Materials Letters . Dec2021, Vol. 305, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- • The V/Cu/Ni interlayer was first applied to weld TC4 titanium alloy and 4J36 invar alloy. • The use of V/Cu/Ni interlayer produces solid solutions at all interfaces. • The use of V/Cu/Ni interlayer improves the quality of dissimilar joint between titanium alloy and steel. • The formation mechanism of 4J36/Ni/Cu/V/TC4 bonded joints was studied. Diffusion bonding of 4J36 invar alloy and TC4 titanium alloy was carried out by inserting Ni/Cu/V multi-layer metal interlayer. The results showed that temperature had a significant effect on microstructure and mechanical properties of welded joints. At 890 °C, the joint tensile strength reached maximum value of 249.3 MPa. Fe-Ni solid solution ((Fe,Ni)ss), Cu-Ni solid solution ((Cu,Ni)ss), V-Cu solid solution ((V,Cu)ss) and Ti-V solid solution ((Ti,V)ss) were produced at interfaces of 4J36/Ni, Ni/Cu, Cu/V and V/TC4, respectively, and fracture surfaces of all joints showed dimples of different sizes, which showed that the application of Ni/Cu/V interlayer was an effective method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 305
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 152899730
- Full Text :
- https://doi.org/10.1016/j.matlet.2021.130809