Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Ununiform Deformation of 18% and 25% Chromium Steel on Hot Extrusion
Toshiro MASE
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1982 Volume 68 Issue 13 Pages 1799-1807

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Abstract

Mechanism of stringy defect formation on hot extrusion of high chromium steels and its prevention methods were investigated.
It was estimated that stringy defect resulted from the strain in circumferential direction relatively larger than in extrusion direction.
Stringy defect can be prevented by refining the structure, i.e. promoting the precipitation of austenite or adding a carbide/nitride former element.

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© The Iron and Steel Institute of Japan
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