焼結炭素鋼の各種物性に及ぼす雰囲気ガスの影響

概要

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This study investigated to effect of atmospheric gas (N2-H2 base) influenced by each properties on sintered carbon steel. Especially, it measured the hydrogen concentration, the amout of flowing gas, the change of dew point and investigated to influence by 2 types binder and enrich gas flowed by used atomized powder and reduced powder. As a result, the change of dew point influenced to worst values of mechanical properties in all conditions, and it occurred to decarburization above -40°C. Mechanical properties of high dew poit specimens was lower values than that of commercial base specimens. In addition, adding enrich gas was occurred to carburization at surface of specimens. Most variable condition of each properties on sintered carbon steel was maintained to under -50°C of dew point, 3vol% H2 concentration and the amout of flowing gas was 350l/min constant.
社団法人粉体粉末冶金協会の論文
1999-07-15