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Understanding the role of hydrides in fatigue crack initiation behaviour in Ti-2Al-2.5Zr titanium alloy: Insights from quasi-in-situ fatigue tests and crystal plasticity methods
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DOI：10.1016/j.ijplas.2026.104781.png)
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Abstract
En 中文
• The titanium hydride deformation was characterized using HR-DIC. • Fatigue crack initiation is promoted by a small angle between the phase boundary and slip trace. • Hydrides promote extrusion damage at surface phase boundaries, a preferred site for crack initiation, ultimately leading to matrix cracking. • A fatigue indicator parameter is developed to predict hydride-induced crack initiation sites.
Keywords:
Hydride-induced cracks
α titanium alloy
Crack initiation
Low-cycle fatigue
High resolution digital image correlation
Crystal plasticity
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12.8
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4.0K
Citations:
2.5W
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