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Low hydrogen annealing : ウィキペディア英語版
Low hydrogen annealing
Low hydrogen annealing is a heat treatment in metallurgy for the reduction or elimination of hydrogen in a material to prevent hydrogen embrittlement.
==Process description==
The material is kept in an hydrogen annealing oven over several hours at temperatures between 200 °C and 300 °C. The enclosed hydrogen atoms, known for hydrogen embrittlement〔( Effect of temperature on the susceptibility of VT6ch alloy to hydrogen embrittlement )〕 are removed by effusion. The method is predominantly used immediately after welding or galvanizing of the parts.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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