OS0313 HCP双結晶の塑性すべりによって生ずる回位型変形場と応力集中(非立方晶型金属材料の変形現象とそのモデル化,オーガナイズドセッション)

概要

論文の詳細を見る
Plastic slip deformation of a HCP bicrystal is analyzed by a crystal plasticity FE code and distribution of plastic shear strain on the primary and secondary slip systems, as well as some stress components are examined. The constituent crystals are idealized ones and slip deformation on basal, prismatic and pyramidal slip systems can take place, but twin deformation cannot After a deformation of 1% nominal tensile strain, sharp stress concentrations are developed at the junctions of the grain boundary plane and specimen surfaces even though the crystal orientations of the two grains differ only a few degree. Results are compared th the case for FCC biciystals and effects of the activation of secondary slip systems are discussed.
一般社団法人日本機械学会の論文
2009-07-24