前言 随着宇航事业的发展,超高强度钢的应用越来越广泛。工程实践表明,钢的强度越高在特定环境下的应力腐蚀开裂敏感性也越大,而这种开裂往往无法预知,后果往往是灾难性的。因此,在使用超高强度钢时不仅要注意强度韧性指标,还要特别注意抗应力腐蚀性能指标。 Foreword With the development of aerospace industry, the application of ultra-high strength steel is more and more widely. Engineering practice shows that the higher the strength of steel, the greater the sensitivity to stress corrosion cracking in a given environment, which is often unpredictable and the consequences often catastrophic. Therefore, the use of ultra-high-strength steel not only pay attention to the strength and toughness indicators, but also pay special attention to stress corrosion resistance.