Vacancy clustering behavior in hydrogen-charged martensitic steel AISI 410 under tensile deformation

The International Workshop on Positron Studies of Defects 2014

Sugita, K.^1 ; Mutou, Y.^1 ; Shirai, Y.^1

Department of Materials Science and Engineering, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto

606-8501, Japan^1

关键词: Aisi 410;    Deformation process;    Dislocation densities;    Positron lifetime spectroscopy;    Tensile deformation;    Vacancy cluster;    Vacancy clustering;    Vacancy density;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/674/1/012006/pdf
DOI  :  10.1088/1742-6596/674/1/012006

来源: IOP

【 摘 要 】

The formation and accumulation of defects under tensile deformation of hydrogen- charged AISI 410 martensitic steels were investigated by using positron lifetime spectroscopy. During the deformation process, dislocations and vacancy-clusters were introduced and increased with increasing strains. Between hydrogen-charged and uncharged samples with the same tensile strains there was no significant difference in the dislocation density and monovacancy equivalent vacancy density.