首页|Effects of helium cavity size and morphology on the strength of pure titanium
Effects of helium cavity size and morphology on the strength of pure titanium
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Acta Materialia Inc.High-purity α-titanium was implanted with helium to observe cavity morphology – size, number density, and form (i.e., bubbles vs. voids) – effects on materials strength. Increasing implantation temperatures lead to an Arrhenius-type (i.e., exponential) increase in cavity size, a transition from spherical bubbles to faceted voids, and a marked increase in strength (～20–50%). Implanted samples deformed uniformly in contrast to nano-compression of unimplanted or alloyed titanium, but pillars with the largest faceted voids developed a type of bulging localized deformation. Affected voids were repeatedly sheared, becoming rough and shrunken. Dislocation-cavity interactions and the role of helium content within cavities are considered.
HeliumNanomechanical TestingStrength
Lear C.R.、El Atwani O.、Chancey M.R.、Kim H.、Wang Y.、Fensin S.J.、Gigax J.G.、Li N.
NSTL
Elsevier
