Void formation, void growth and tensile fracture in Ti-6AI-4V
作者： Harold Margolin , Yashwant Mahajan
DOI: 10.1007/BF02649787
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摘要: The influence of microstructure on void formation, growth and tensile fracture was investigated for the Ti-6A1-4V alloy, aged to yield strengths approximately 110 ksi (758 MN/m2), 130 (896 MN/m2) 140 (965 MN/m2). Void nucleation occurs at α-aged martensite interfaces both equiaxed (E) Widmanstatten plus grain boundary (W + GB)α structures as well within α particles. appeared depend plate lengths a given aging treatment Ea structures, whereas it depended prior β size thickness W GBα structures. Two separate critical crack size-fracture stress (corrected necking) relationships were found E energy lower than corresponding previously observed Ti-5.25Al-5.5V-0.9Fe-0.5Cu(Ti-5-5) alloy,2 ductilities ascribed this energy.
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