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Influence of hydrogen on the mechanical properties of some medium-strength Ni-Cr-Mo steels

机译:氢对某些中等强度Ni-Cr-Mo钢力学性能的影响

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Our recent work is reviewed on the influence of hydrogen on the mechanical properties of four medium-strength Ni-Cr-Mo steels, studied using the linearly increasing stress test (LIST). Cathodic hydrogen charging at different negative potentials was used to produce the different hydrogen conditions. All four steels have good resistance to hydrogen up to the yield stress, especially NiCrMo1. Somewhat lower ductility occurred due to the presence of alumina oxides inclusions. Their performance in a hydrogen environment may be improved by reducing the density or the size of inclusions.
机译:我们使用线性增加应力测试(LIST)研究了氢对四种中等强度Ni-Cr-Mo钢的机械性能的影响的最新工作。阴极在不同的负电势下充氢用于产生不同的氢气条件。四种钢都具有良好的抗屈服应力的抗氢性能,尤其是NiCrMo1。由于存在氧化铝夹杂物,延展性有所降低。可以通过降低夹杂物的密度或尺寸来改善它们在氢环境中的性能。

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