828 チタンの結晶ひずみとマクロひずみの関係

概要

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The purpose of this study is to investigate the relationship between macroscopic strain and lattice strain of titanium. A measuring method of the lattice strain of crystal under loading was developed by using diffracted X-rays which penetrate through the specimen. A small equipment of tensile loading while irradiated with X-ray was made. In this experiment, specimens of 50mm length and 5mm width were made from pure titanium (α-Ti) of 0.1mm thickness and titanium alloy (β-Ti) of 0.13mm thickness. Strains of (100), (101), (102), (110), (112), (200), (203), (211) lattice planes of α-Ti and (110), (211), (220), (321) lattice planes of β-Ti were measured by this method. Macroscopic strain was measured by the strain gauge on the specimen surface. As a result, those lattice strains of every specimens showed values approximately from 70% to 100% of macroscopic strains.
社団法人日本機械学会の論文
2003-08-05