Effect of Deformation and Heat-treatment on Deformation-induced Defects in Iron

GONG Yihao; JIN Shuoxue; LU Eryang; KUANG Peng; ZHU Te; CAO Xingzhong; WANG Baoyi

doi:10.11804/NuclPhysRev.34.03.646

The pure iron was cold rolled with the thickness reduction from 0% to 75%. The microstructure defects, crystallographic structure and morphology of deformed specimens were characterized by positron annihilation technique (PAT), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results show that the intensity of (200) increased with increasing deformation, 673 K heat-treatment promote the preference of (200) and the grain size of (200) was increased. The PAT results show that the vacancy type defect was annihilated at 673 K and the dislocation type defects start to annihilate at 723 K.

Effect of Deformation and Heat-treatment on Deformation-induced Defects in Iron

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Funds: National Natural Science Foundation of China(11475193, 11575205, 11505192)

Corresponding author: 10.11804/NuclPhysRev.34.03.646

Received Date: 2016-12-11

Rev Recd Date: 2017-04-15

Publish Date: 2017-07-18

Key words:

Abstract: The pure iron was cold rolled with the thickness reduction from 0% to 75%. The microstructure defects, crystallographic structure and morphology of deformed specimens were characterized by positron annihilation technique (PAT), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results show that the intensity of (200) increased with increasing deformation, 673 K heat-treatment promote the preference of (200) and the grain size of (200) was increased. The PAT results show that the vacancy type defect was annihilated at 673 K and the dislocation type defects start to annihilate at 723 K.

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Effect of Deformation and Heat-treatment on Deformation-induced Defects in Iron

doi: 10.11804/NuclPhysRev.34.03.646

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