5-8 September 2022
Wyndham Grand Salzburg Conference Center
Europe/Vienna timezone

Hardenability of PM steel alloyed using tailored Master Alloys

7 Sep 2022, 10:15
25m
Room 3

Room 3

Oral Presentation Thermal processing of Iron and Steels (annealing, hardening, tempering, Q&T, Q&P) STEEL

Speaker

Stefan GEROLDINGER (TU Wien)

Description

The ferrous powder metallurgy industry is facing major upheavals currently, which however also offer opportunities. New materials and concepts, made possible by tailored design, are a way to prepare for new tasks. Alloying of PM steel through the the master alloy route is a concept that combines efficient usage of alloying elements, also of such with high oxygen affinity, with accelerated homogenization via liquid phase sintering. Thus, improved properties can be attained while maintaining dimensional precision, which makes the PM route more attractive. In the present study, different master alloys containing Fe, Si, C, Cr and/or Mn are admixed to various ferrous base powders, the mixes then being consolidated by pressing and sintering. The materials thus produced are compared to a commercial sinter hardening PM steel grade in terms of hardenability. CTT diagrams are presented for all materials, and hardness data from quenching dilatometer experiments are compared to the hardness values achieved by sinter hardening in the lab furnace.

Speaker Country Austria
Register for the Tom Bell Young Author Award (TBYAA)? No

Primary author

Co-authors

Prof. Raquel DE ORO CALDERO (Professor) Prof. Herbert DANNINGER (Technische Universität Wien) Prof. Christian GIERL-MAYER (TU Wien)

Presentation Materials

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