227 Peak separation of trapped hydrogen at various oalltice defects by thermal desorption spectrometry

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  • 227 昇温脱離分析法による各種格子欠陥にトラップされた水素のピーク分離(OS8-1 水素環境が金属強度特性に及ぼす影響,OS8 水素環境が金属強度特性に及ぼす影響)

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Hydrogen embrittlement has been analyzed by using thermal desorption spectrometry (TDS). However, it is difficult to separate the states of trapped hydrogen at various lattice defects such as dislocation and vacancy. It is reported that peaks of hydrogen desorption are dependence on thickness of specimen, heating rate, binding energy and defect density. Thus, the objective of the present study is the separation of the hydrogen states in pure iron emphasized dislocation and vacancy using controlling thickness of specimen and heating rate.

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