Journal
ADDITIVE MANUFACTURING LETTERS
Volume 3, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.addlet.2022.100043
Keywords
Cold spray additive manufacturing; Fatigue crack growth; Hartman-Schijve equation
Funding
- European Regional Development Fund [CZ.02.1.01/0.0/0.0/16_019/0000778]
- Czech Science Foundation [22-14048S]
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Recent studies have shown that the da/dN versus ΔK curves associated with crack growth in different manufacturing methods can collapse onto a single master curve, indicating the independence of crack growth behavior from manufacturing processes.
It has recently been shown that when the da/dN versus & UDelta;K curves associated with crack growth in conventionally manufactured, additively manufactured (AM), and cold spray additively manufactured (CSAM) 316L stainless steel are replotted with da/dN expressed as a function of the Schwalbe crack driving force (& UDelta;������), then the various different curves collapsed onto a single master curve. This study reveals that this phenomenon also arises for crack growth in titanium, nickel, and aluminum. In each case, the da/dN versus & UDelta;������ relationship is shown to be independent of whether the specimen was conventionally manufactured or produced by CSAM.
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