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Reaching Full Density of 100Cr6 PM Steel by Capsule Free Hot Isostatic Pressing of High-Velocity Compacted Material

Hans Magnusson ; Karin Frisk ; Maheswaran Vattur Sundaram (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Eduard Hryha (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Christer Åslund ; Björn-Olof Bengtsson ; MAGNUS AHLFORS ; Sören Wiberg
Proceedings of Wolrd PM2016 - HIP - Production (2016)
[Konferensbidrag, refereegranskat]

Spherical gas atomised 100Cr6 steel powder, processed with the MMS-Scanpac® process to 95% density (agglomeration, followed by conventional pressing, low temperature sintering and re-strike using high velocity adiabatic compaction) has been fully compacted using capsule-free hot isostatic pressing. The material is characterised at different steps of the process and the results are discussed in this paper. Sintering steel powder with high content of carbon requires carbon control at sintering. By continuously measuring the atmosphere at sintering the ingoing gases are adjusted so that carbon control is achieved. Computational work has been made in order to determine how the sintering atmosphere should be adjusted based on the oxygen release and moisture content in the furnace at sintering.

Nyckelord: Capsule free HIP, high velocity compaction, 100Cr6, carbon control INTRODUCTION

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Denna post skapades 2016-10-14.
CPL Pubid: 243422