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Residual stresses in green bodies of steel powder after conventional and high speed compaction
Linköping University, Department of Mechanical Engineering, Engineering Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Mechanical Engineering, Engineering Materials. Linköping University, The Institute of Technology.
2002 (English)In: Materials Science Forum, ISSN 0255-5476, Vol. 404-407, 77-82 p.Article in journal (Refereed) Published
Abstract [en]

Residual stresses have been measured in green bodies after conventional compaction at 400 and 530 MPa and after high speed compaction with impact energies of 1400J and. 2200J. The former were rectangular bars and the latter cylinders. The stresses have been measured by X-ray and neutron diffraction. The full width half maximum peak widths were also recorded. :ft was found that all surfaces had compressive residual stresses in the range 5 to 90 MPa, the largest values found on side surfaces that had been deformed in shear during ejection from the die. The presence of lubricant reduces the residual stress values. The powders were basically water atomised iron powder: Hoganas ASC 100.29, Distalloy AE and Pasc.

Place, publisher, year, edition, pages
Stafa-Zurich, Switzerland: Trans Tech Publications Inc., 2002. Vol. 404-407, 77-82 p.
Keyword [en]
residual stress, powder metallurgy, green body, high speed compaction, water atomised iron powder
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-48853DOI: 10.4028/www.scientific.net/MSF.404-407.77ISI: 000177256900012OAI: oai:DiVA.org:liu-48853DiVA: diva2:269749
Conference
6th European Conference on Residual Stresses (ECRS 6), Coimbra, Portugal, July 10-12 2001
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2014-08-19Bibliographically approved

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Ericsson, Torsten

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