Effects of temperature and alloying content on the phase transformation and{10■1}twinning in Zr during rolling

作者：Xinglong An; Hao Zhang; Song Ni^*; Xiaoqin Ou; Xiaozhou Liao; Min Song^*

来源：Journal of Materials Science & Technology, 2020, 41(06): 76-80.

The effects of temperature and Ti content on the deformation mechanisms of pure Zr and Zr-Ti alloys were investigated by transmission electron microscopy.The results indicate the existence of a relation between deformation-induced phase transformation from a hexagonal close-packed structure to a facecentered cubic structure and{10■1}deformation twinning.That is,when one is suppressed,the other will be promoted.The phase transformation was suppressed while the{10■1}compressive twinning was promoted with increasing the rolling temperature and/or Ti content.This can be attributed to the activation of basaldislocations at high temperature and the increased stacking fault energy with Ti content.

• 单位
  粉末冶金国家重点实验室; 中南大学