Acta Metallurgica Sinica (English Letters)

, Volume 31, Issue 5, pp 449–455 | Cite as

Different Mechanisms of ε-M and α′-M Variant Selection and the Influencing Factors of ε-M Reversion During Dynamic Tension in TRIP Steel

  • Li-Na Wang
  • Ping Yang
  • Ting Jin
  • Wei-Min Mao


The variant selection of martensites (ε-M and α′-M) and ε-M reversion in dynamic tensile high-manganese TRIP steel were investigated. α′-M variant pairs with a zigzag morphology frequently formed, and the pairs of neighboring α′-M variants were examined in terms of mechanical work and strain energy reduction. The occurrence of a primary α′-M variant is determined by mechanical work, but high products of mechanical work and strain energy reduction are essential for secondary variant selection. In contrast to α′-M variant pair selection, ε-M variant selection can be attributed to the highest mechanical work. During ε-M→α′-M transformation, the mechanical work of ε-M reversion is higher than that of α′-M variant, thereby implying that ε-M reversion in 〈110〉 γ grain is possible. ε-M plate distribution also affects the feasibility of ε-M reversion.


TRIP-assisted steel Dynamic plastic deformation Martensitic transformation Variant selection Orientation relationship 



This research was financially supported by the National Natural Science Foundation of China (No. 51271028).


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Copyright information

© The Chinese Society for Metals and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.Department of Materials, School of TianjinUniversity of Science and Technology BeijingTianjinChina

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