日本金屬學會誌.B
Online ISSN : 2433-7471
Print ISSN : 0369-4615
ISSN-L : 0369-4615
高温加工後のオーステナイト結晶粒成長について(第3報)高速度鋼について
武田 信男
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ジャーナル フリー

1951 年 15 巻 12 号 p. 581-585

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High speed steel specimens were worked by torsion at the temperature of 1000∼1200°, and austenite grain-growth was observed with microscope. Austenite grain-boundaries were revealed by keeping the specimens at 800° for 10 minutes, the temperature bringing the nose in S curve. The outlines of the experiments are as follows :
\ oindent(1) The relation between the degree of deformation, grain size and the working temperature was measured.
\ oindent(2) The progress of recrystallization or grain-growth with the lapse of time after hot working was observed.
\ oindent(3) The relation between the degree of deformation and the lapse of time before recrystallizing was found out.
\ oindent(4) It was observed that the successive alternating working diminished the capacity of recrystallization.
\ oindent(5) Coarse austenite grains were incapable of being recovered by the heat treatment.

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© 社団法人 日本金属学会
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