High and low cycle fatigue behavior of linear friction welded Ti–6Al–4V

Strength and fatigue strength of a similar Ti‐6Al‐2Sn‐4Zr‐2Mo‐0.1Si linear friction welded joint

“…The assessment of the strain fields on cross-weld specimens has already been exploited by several authors. 15,[21][22][23] For the last 20 years, a large number of authors have used spatio temporal graphs to highlight the presence of strain bands due to instabilities of Portevin's Le Chatelier effect and the Lüders bands. Yet, very little attention has been given to the chronological strain evolution and strain rate in the weld zones during tensile test.…”

Tensile and fatigue behavior of electron beam welded dissimilar joints of Ti–6Al–4V and IMI834 titanium alloys

“…Stinville et al [12] studied the stress-controlled high and low cycle fatigue (LCF) behavior of linear friction welded of Ti-6Al-4V titanium alloy at ambient temperature, and reported that the fracture process depends on the stress level. Fu et al [13] investigated the stress-controlled fatigue behavior of electron beam welded TC4-DT alloy joints, and showed that the fatigue resistance of the welded joints with beam oscillation was higher than that of conventional EBWed joints, or even equivalent to that of the base metal at high levels of cyclic stresses.…”

“…The structural application of titanium alloys including their welded joints involves unavoidably fatigue and cyclic deformation characteristics due to the fact that structural components in the vehicles are often subjected to dynamic loading, which results in the occurrence of fatigue failure. Hence, an understanding of fatigue and cyclic deformation of titanium alloy and its joints is critical for the design and durability evaluation of engineering components.Previous studies on the titanium alloys and their welded joints were mainly focused on stresscontrolled fatigue properties, tensile properties, and microstructure [12][13][14][15][16][17][18][19]. For example, Stinville et al [12] studied the stress-controlled high and low cycle fatigue (LCF) behavior of linear friction welded of Ti-6Al-4V titanium alloy at ambient temperature, and reported that the fracture process depends on the stress level.…”

“…Previous studies on the titanium alloys and their welded joints were mainly focused on stresscontrolled fatigue properties, tensile properties, and microstructure [12][13][14][15][16][17][18][19]. For example, Stinville et al [12] studied the stress-controlled high and low cycle fatigue (LCF) behavior of linear friction welded of Ti-6Al-4V titanium alloy at ambient temperature, and reported that the fracture process depends on the stress level.…”

Analysis of Microstructure Evolution and Mechanical Properties of Linear Friction Welded Titanium Alloys

“…welded sample, which is accounted by the increase in ductility. Stinville et al [59] studied the high and low cycle fatigue behavior of linear friction welded Ti-64 in the as-welded condition and reported that LCF failure occurred within a stress amplitude ranging from 1000 to 900 MPa. The fracture occurred in the BM close to the WCZ, which indicated that the WCZ was harder than the BM.…”