Effects of High-Speed Mixing on the Properties of Sintered F-0008 and FN-0208 PM Parts

Cole Bressler, Devin Carns, Daudi Waryoba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two variants of iron-based powders, F-0008 and FN-0208 were used to study the effects of high-speed mixing on the physical and mechanical properties of sintered parts. The results were compared to traditional tumbler-mixed powders. The high-speed mixed powders showed reduction in the particle sizes and improvements in properties such as flow rate, apparent density, porosity, and TRS strength. High speed mixing was done at 2,500 rpm for 30 seconds and 19,000 rpm for 30 seconds. After mixing, the powders were compacted to a density of 6.7 g/cm3 and sintered at 1135 °C (2075 °F) in a 90% N2 + 10% H2 atmosphere. Results show appreciable improvement in the transverse rupture strength (TRS) of high-speed mixed parts. FN-0208, in particular, showed a 6% increase in TRS compared to conventional mixed parts. This suggests that the increase in the strength of high-speed mixed FN-0208 is due to co-deformation between nickel and iron powders during high-speed mixing. This results to particle fragmentation and local deformation which enhances diffusion and improves mechanical properties.

Original languageEnglish (US)
Title of host publicationAdvances in Powder Metallurgy and Particulate Materials - 2022
Subtitle of host publicationProceedings of the 2022 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2022
PublisherMetal Powder Industries Federation
Pages526-532
Number of pages7
ISBN (Electronic)9781943694365
StatePublished - 2022
Event2022 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2022 - Portland, United States
Duration: Jun 12 2022Jun 15 2022

Publication series

NameAdvances in Powder Metallurgy and Particulate Materials - 2022: Proceedings of the 2022 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2022

Conference

Conference2022 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2022
Country/TerritoryUnited States
CityPortland
Period6/12/226/15/22

All Science Journal Classification (ASJC) codes

  • Materials Chemistry
  • Metals and Alloys
  • Surfaces and Interfaces

Fingerprint

Dive into the research topics of 'Effects of High-Speed Mixing on the Properties of Sintered F-0008 and FN-0208 PM Parts'. Together they form a unique fingerprint.

Cite this