关键词：钢铁；刚强度合金；氢脆；航天系统；寿命预测模型
摘 要：Hydrogen embrittlement of high strength steel is the most predominant unforeseen hurdle since high strength materials show sensitivity to the phenomena and the source of the hydrogen can be anything within the fabrication process, maintenance practice, or the natural corrosion cycle. Historically, the various aerospace defense contractors have each tested in their own manner, which has led to the national standard incorporating many approved test geometries and grey procedures. This work evaluated hydrogen susceptibility over a range of material strength, load level, and hydrogen emitting environment (weight- percent sodium chloride NaCl) which demonstrated performance with parameter ranges, not as pass/fail results, while developing life predictive models for each geometry.