Effect of post-weld heat treatment on the interface microstructure of explosively welded titanium–stainless steel composite

In this study, the interface microstructure evolutions of the explosively welded cp-Titanium/AISI 304 stainless steel composites due to heat treatment are presented. The composites were subjected to heat treatment process at temperature ranges of 650–950°C in argon atmosphere for 1h. The investigati...

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Vydáno v:Materials science & engineering. A, Structural materials : properties, microstructure and processing Ročník 494; číslo 1-2; s. 329 - 336
Hlavní autoři: Akbari Mousavi, S.A.A., Sartangi, P. Farhadi
Médium: Journal Article
Jazyk:angličtina
Vydáno: Amsterdam Elsevier B.V 25.10.2008
Elsevier
Témata:
Applied sciences
Diffusion
Exact sciences and technology
Explosive welding
Heat treatment
Interface
Joining, thermal cutting: metallurgical aspects
Metals. Metallurgy
Stainless steel
Titanium
Welding
Titanium
Heat treatment
Explosive welding
Diffusion
Stainless steel
Interface
Interfacial layer
Scanning electron microscopy
Microanalysis
Transition metal
Dispersive spectrometry
X ray diffraction
Composite material
Optical microscopy
Stainless steel-304
Interface reaction
Microstructure
ISSN:0921-5093, 1873-4936
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Shrnutí:In this study, the interface microstructure evolutions of the explosively welded cp-Titanium/AISI 304 stainless steel composites due to heat treatment are presented. The composites were subjected to heat treatment process at temperature ranges of 650–950°C in argon atmosphere for 1h. The investigations were carried out by using optical microscopy (OM), scanning electron microscopy (SEM). The results reveal the presence of reaction layers in the diffusion zone. The compositions of the reaction products were determined by energy dispersive spectroscopy (EDS). Furthermore, the composition–penetration plots for Ti, Fe, Cr and Ni across the interface were obtained from EDS microanalysis. Concentration of discontinuities in the profiles indicating the formation of intermetallics in the diffusion zone that were also detected by X-ray diffraction (XRD) method, on the Ti-side of fractured surfaces. The results show that post-heating of the composite layers in these temperatures causes to form different intermetallic phases at the joint interface. Moreover, post-heating increases the width of interfacial layers of the composite.
Bibliografie:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2008.04.032