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Hydrogen-induced cracking in a very-high-purity high-strength steel

机译:高纯度高强度钢的氢致裂纹

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摘要

It is shown that intergranular fracture along prior-austenite grain boundaries in a ultrahigh-strength quenched and tempered 4340-type steel is not suppressed by eliminating all segregated embrittling elements. This leaves open the question of how brittle intergranular cracks are nucleated in hydrogen in the absence of such impurities.
机译:结果表明,通过消除所有偏析的脆化元素,并不能抑制超高强度淬火回火的4340型钢沿原奥氏体晶界的晶间断裂。这就留下了一个问题,即在没有这种杂质的情况下,氢中如何使脆性的晶间裂纹成核。

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