塑性と加工
Online ISSN : 1882-0166
Print ISSN : 0038-1586
ISSN-L : 0038-1586
論文
マグネシウム粉末焼結押出合金における異方性塑性硬化特性の実験測定と変形挙動の解析
麻 寧緒Elsayed Ayman近藤 勝義
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ジャーナル フリー

2017 年 58 巻 678 号 p. 587-592

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The newly developed extrusion process for Mg-Al-Mn-Ca magnesium alloys using rapidly solidified powders produced very fine grains. The uniaxial tensile and compressive anisotropic stress-strain curves in the extrusion direction and the transverse directions were identified by finite element (FE) analysis based on the measured force-displacement relation. Compared with the cast ingot magnesium alloys, the extruded magnesium alloys have higher strength and weaker anisotropic material properties. Using the identified anisotropic material properties of the extruded magnesium alloys and anisotropic yield function Hill48, the deformation behaviors of magnesium under three-point bending tests and a ball-on-plate indentation test were accurately predicted.

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© 2017 一般社団法人 日本塑性加工学会
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