Abstract:Uniaxial fatigue tests were conducted for a β titanium alloy Ti-22V-4Al up to a very high cycle fatigue (VHCF) regime. The initiation and propagation processes of the internal fatigue cracks were investigated using 3D fractographic analysis. Multiple facets were observed at the crack initiation site. Three facet initiation models were proposed based on the surface appearances and the 3D facet bonding patterns of the multiple facets, and the major facet was determined to be the true crack initiation site. Using… Show more
“…The mechanism of fatigue crack initiation in the SLM α + β titanium alloys is well known and reported in detail by many authors [49][50][51][52][53] and is related to the facet formation in alpha phase. The crack initiation…”
“…The mechanism of fatigue crack initiation in the SLM α + β titanium alloys is well known and reported in detail by many authors [49][50][51][52][53] and is related to the facet formation in alpha phase. The crack initiation…”
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