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Hydrogen-induced cracking of commercial purity titanium

机译:氢致商业纯钛的裂解

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摘要

Slow straining of compact tension specimens of commercial-purity titanium has been employed for assessing the likelihood of failure due to hydrogen pick-up in titanium containers for nuclear fuel waste disposal. Results indicate that slow crack growth occurs by a ductile tearing process at low hydrogen concentrations. No fast Crack growth occurs at such hydrogen levels, apparently because ductile collapse relaxes the stresses and prevents The attainment of a sufficiently high stress intensity for fast crack initiation.
机译:商用张力钛的紧凑张力试样的缓慢应变已用于评估由于钛容器中氢吸收引起的核燃料废物处置而导致失效的可能性。结果表明,在低氢浓度下,通过韧性撕裂过程会出现缓慢的裂纹扩展。在这样的氢含量下,不会出现快速的裂纹扩展,这显然是因为延性的塌陷松弛了应力并阻止了裂纹的产生。

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