Influence of the Powder Fraction on the Properties of Powder Metallurgical Produced High-speed Steel

被引：0

作者：

Zuber, M.J. ^{[1
]}

Winkler, H. ^{[1
]}

Schweiger, H. ^{[2
]}

Leitner, H. ^{[3
]}

机构：

[1] Böhler Edelstahl GmbH & Co KG, Austria

[2] Böhler Edelstahl GmbH & Co KG, Kapfenberg, Austria

[3] Department Metallkunde und Werkstoffprüfung, Montanuniversität Leoben, Leoben, Austria

来源：

BHM Berg- und Huttenmannische Monatshefte | 2010年 / 155卷 / 03期

关键词：

Carbides - Ductile fracture - Fracture toughness - Particle size - Steel metallography - Tensile testing - Tool steel;

D O I：

10.1007/s00501-010-0550-2

中图分类号：

学科分类号：

摘要：

The influence of the powder fraction on the properties of the Böhler high speed steel S290 Microclean® was investigated. Therefore, the standard powder was sieved into six different powder fractions which were hipped, rolled/forged, soft annealed and tempered. Microstructure characterizations were made by scanning electron microscope (SEM), x-ray diffractometer and an image analyse software. Next to the estimation of the fracture toughness tensile tests were performed. The investigations indicated that the carbide size distribution was influenced by the powder fraction. However, the different powder size classes showed no effect on the mechanical properties. Though, there was no significant improvement of the mechanical properties by a further particle size reduction of the standard powder at the same production parameters. © 2010, Springer-Verlag.

引用

页码：136 / 141

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