Influences of thermomechanical treatments on the cryogenic treatability of a slightly unstable austenitic stainless steel

被引：8
作者：
Li, Xiang [1 ]
Li, Tao [2 ]
Lo, K. H. [1 ,2 ]
Kwok, C. T. [1 ,2 ]
Chen, Feng [2 ]
机构：
[1] Univ Macau, Fac Sci & Technol, Inst Appl Phys & Mat Engn, Macau, Peoples R China
[2] Univ Macau, Fac Sci & Technol, Dept Electromech Engn, Macau 999078, Peoples R China
来源：
MATERIALS AND MANUFACTURING PROCESSES | 2017年 / 32卷 / 11期
关键词：
Deep cryogenic treatment; martensitic transformation; sensitisation; solution treatment; WEAR-RESISTANCE; MECHANICAL-PROPERTIES; PITTING CORROSION; TOOL STEEL; GRAIN-SIZE; AISI; 420; TRANSFORMATION; FATIGUE; MICROSTRUCTURE; BEHAVIOR;
D O I：
10.1080/10426914.2016.1257806
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The success of deep cryogenic treatment (DCT) of austenitic stainless steels (AusSSs) relies heavily on martensitic transformation. For AusSSs that are not prone to martensitic transformation, thermomechanical treatments (such as high-temperature solution treatment, plastic deformation, and sensitisation) may expedite DCT by encouraging martensite formation. This paper looks into the influences of the aforementioned thermomechanical treatments on the cryogenic treatability of a slightly unstable AusSS regarding tensile properties. Overall, no noticeable strengthening could be achieved through DCT, but a slight improvement in ductility was observed for all the thermomechanical treatment conditions mentioned above. Preliminary results indicated that the pitting corrosion resistance of the AusSS was almost unaltered by DCT.
引用
收藏
页码：1239 / 1247
页数：9
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