M&M材料力学カンファレンス
Online ISSN : 2424-2845
セッションID: OS0417
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OS0417 単軸圧縮負荷を受けるHCP単結晶におけるキング帯形成過程の結晶塑性解析
眞山 剛大橋 鉄也只野 裕一萩原 幸司
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抄録
In plastically deformed hexagonal close-packed (HCP) metals, kink bands are frequently formed. The one possible formation mechanism for kink bands is the significant lattice rotation due to localized accumulation of basal slip. Therefore, the details of accumulation of basal slip during plastic deformation should be made clear to gain understandings of formation mechanism of kink bands. In this study, the localization of basal slip during compressive loading in single crystal magnesium with the dominant activation of basal slip system is numerically evaluated using a crystal plasticity finite element analysis method. The influences of initial crystal orientation, lattice rotation, hardening rate and strain rate sensitivity are studied.
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© 2013 一般社団法人 日本機械学会
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