摘要
针对不锈钢在低温服役过程中面临高强低韧、低耐磨以及氢脆等一系列问题,阐述3种典型的氢脆理论,并分析不锈钢超低温下材料化学成分、应变量和应变速率等参量对其力学性能的影响规律,从微观角度明晰不锈钢超低温下的组织演变机制,揭示位错组态、滑移带、机械孪晶、奥氏体相、马氏体相的变化与力学性能改变的内在联系,对改善加工工艺、调控材料化学成分比例以及减小晶粒尺寸3种强化手段进行机理分析。最后介绍不锈钢在氢能储运领域中的典型应用以及未来发展趋势。
The stainless steel faces a series of problems such as high strength、low toughness、low wear resistance and hydrogen embrittlement in the process of ultra-low temperature service.Three typical hydrogen embrittlement theories were described.The influence of chemical composition,deformation amount and strain rate on mechanical properties of stainless steel was analyzed at ultralow temperature conditions.The mechanism of microstructure evolution of stainless steels was clarified at ultra-low temperature conditions.The interrelationship between microstructure and mechanical properties was revealed regarding dislocation configuration,slip band,mechanical twins,austenitic and martensitic phases.Moreover,the mechanism analyses were carried out by improving the processing technology,adjusting the chemical composition ratio,and reducing the grain size.Finally,typical application and future development of stainless steels were discussed in hydrogen energy storage and transportation.
作者
程旺军
崔栋栋
孙耀宁
曾月
Cheng Wangjun;Cui Dongdong;Sun Yaoning;Zeng Yue(School of Mechanical Engineering,Xinjiang University,Urumqi 830017,China;Post-Doctoral Research Station of Mechanical Engineering,Xinjiang University,Urumqi 830017,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2024年第6期117-124,共8页
Acta Energiae Solaris Sinica
基金
新疆维吾尔自治区自然科学基金(2022D01C653)
中国博士后科学基金面上资助项目(2022M722666)
新疆维吾尔自治区“天池英才”高层次人才项目(51052300536)。
关键词
氢能
液氢
不锈钢
力学性能
微观组织
马氏体相变
超低温
hydrogen energy
liquid hydrogen
stainless steel
mechanical properties
microstructure
martensitic transformation
ultra-low temperature
