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Hot Isostatic Pressing of Powder Metal as an Alternative to Forging of SA-723

[+] Author Affiliations
Linda Fridlund

Avure Technologies AB, Västerås, Sweden

Paper No. PVP2013-98168, pp. V005T05A014; 5 pages
doi:10.1115/PVP2013-98168
From:
  • ASME 2013 Pressure Vessels and Piping Conference
  • Volume 5: High-Pressure Technology; ASME NDE Division; Rudy Scavuzzo Student Paper Symposium
  • Paris, France, July 14–18, 2013
  • Conference Sponsors: Pressure Vessels and Piping Division, Nondestructive Evaluation Engineering Division
  • ISBN: 978-0-7918-5569-0
  • Copyright © 2013 by ASME

abstract

Hot Isostatic Pressing (HIP) of gas atomized powder has its major application for superalloys and high alloyed steels as e.g. tool steels, high speed steels and stainless steel. The HIP route offers not only finer microstructure and thus better mechanical properties in these alloys but also the possibility to make near net shape end products with isotropic properties. The expansion of the PM HIP Technology towards lower alloyed steels has been considered uneconomical compared to conventionally produced parts and sometimes not even feasible from a technical point of view. The major drawback has been the often reported inferior impact energy. This technical report will address how various parameters in the PM HIP process will influence the mechanical properties of end products and particularly causes and possible solutions to the impact problem.

Copyright © 2013 by ASME

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