Stability of martensite with pulsed electric current in dual-phase steels

作者：Lu W J^*; Qin R S

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2016, 677: 252-258.

DOI：10.1016/j.msea.2016.08.123

• Dual-phase steel
• Tempering martensite
• Softening effect
• Nano-crystallization
• Electropulsing treatment

Softening frequently occurs in dual-phase steels under isothermal tempering of martensite. Recently, non-isothermal tempering is implemented to decrease the softening process in dual-phase steels. Here, we have discovered using high power electropulsing treatment can significantly enhance the strengthening effects via the formation of ultrafine-grained ferrite with nano-cementite particles in tempered martensitic-ferritic steels. To the best our knowledge, electropulsing treatment is a proper candidate to retard even to recovery the softening problems in the tempering of martensite in comparison with other isothermal and non-isothermal tempering methods.

• 出版日期2016-11-20