| 학회 |
한국재료학회 |
| 학술대회 |
2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터) |
| 권호 |
20권 2호 |
| 발표분야 |
E. 구조 재료(Structural Materials) |
| 제목 |
Loading-Direction Dependence on the Activities of Deformation Modes in Mg-Zn Alloy |
| 초록 |
Numerous investigations have recently been carried out to understand deformation mechanisms of magnesium and its alloy at room temperature, because slip and twinning as deformation modes are activated simultaneously during deformation. In this study, neutron diffraction is employed to investigate the micromechanical responses of various grain orientations during uniaxial tension and compression in solid-solution-strengthened extruded Mg-1wt.%Zn alloy. The initial texture shows that {0002} planes in most grains are perpendicular to extrusion axis which is loading direction. The diffraction peak intensity variations and lattice strains of various grain orientations are monitored in situ during deformation. In addition, elastic-viscoplastic self-consistent (EVPSC) modeling is used to predict the macroscopic stress-strain responses, microscopic lattice strain evolution, and relative activities of slip and twinning modes during the course of the test. The results discuss with the loading-direction dependence on the activation of deformation modes of magnesium alloys. |
| 저자 |
채호병1, 우완측2, 이수열1
|
| 소속 |
1충남대, 2한국원자력(연) |
| 키워드 |
magnesium; zinc; alloy; neutron; diffraction; evpsc; deformation
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| E-Mail |
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