シルクローム鋼の脆性原因に就て
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概要
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The transformation temperature of the following two kinds of Silchrome Steels, Such as were [table] studied by means of dilatometer, microscope and Rockwell hardness tester. The begining temperature of the transformation was 965℃ The impact resistances under various heattreatment were studied. The brittleness was mainly caused by the primary carbide segregated on the grain boundary, and was prevented by such a following heat treatment. First ; heat for 30minutes at 1070°∿1100℃ and quenched into oil Second ; heat again for same time at 1, 000°∿1, 030° and quenched into oil. Thired ; tempered for 30∿60 minutes at 850° and cooled in air.
- 社団法人日本鉄鋼協会の論文
- 1934-02-25
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