A dislocation-based crystal plasticity simulation on kink band formation and evolution in polycrystalline Mg alloy with LPSO phase

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A three-dimensional compression analysis is performed by finite element method using a dislocation-based crystal plasticity model to clarify the formation mechanism of kink band in a polycrystalline Mg alloy with a long-period stacking ordered structure (LPSO) phase. The crystalline structure of LPSO phase is regarded as a HCP for simplicity, however, any deformation twinning is not taken into account. In addition, the activities of non-basal systems are considerably limited in the LPSO phase setting the values of their critical resolved shear stresses to large ones. We analyze a simple polycrystalline specimen composed of two α-Mg matrix phases and a LPSO phase both having a rectangular shape and twist grain boundaries are introduced into the interface. The obtained result shows that the kink band formation in the alloy is accomplished by the basal slips with different variants and the non-basal slips are activated on the grain boundary to maintain the continuity of deformation.

本文言語English
ホスト出版物のタイトルAdvances in Engineering Plasticity XII
出版社Trans Tech Publications Ltd
ページ281-286
ページ数6
ISBN(印刷版)9783038352266
DOI
出版ステータスPublished - 2015
イベント12th Asia-Pacific Conference on Engineering Plasticity and Its Application, AEPA 2014 - Kaohsiung, Taiwan, Province of China
継続期間: 2014 9 12014 9 5

出版物シリーズ

名前Key Engineering Materials
626
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

Other

Other12th Asia-Pacific Conference on Engineering Plasticity and Its Application, AEPA 2014
国/地域Taiwan, Province of China
CityKaohsiung
Period14/9/114/9/5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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