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Impact of Internal Oxidation and Quenching Path on Fatigue of Powertrain Components
RISE - Research Institutes of Sweden, Materials and Production, IVF, Tillverkningsprocesser.ORCID iD: 0000-0003-1677-1064
RISE - Research Institutes of Sweden, Materials and Production, IVF.
RISE - Research Institutes of Sweden, Materials and Production, IVF.
RISE - Research Institutes of Sweden, Materials and Production, KIMAB.
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2015 (English)In: Heat Treating 2015: Proceedings of the 28th ASM Heat Treating Society Conference, 2015, p. 504-509Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Atmospheric case hardening of powertrain components may cause internal oxidation and thus reduce hardenability at the surface zone. This may affect the fatigue strength, which restricts the maximum cyclic load on steel components and hence is a major impediment for powertrain development and design. Here we have investigated the effect of furnace gas atmosphere composition and quenching path on fatigue properties of powertrain components. The results show that the detrimental effect of internal oxidation on fatigue may be compensated for by altering of the furnace atmosphere. Moreover, it is shown that the quenching path below the martensite start temperature also has an impact on the fatigue properties. These experiments were done in a full-scale industrial furnace on steel bars in 16MnCr5 and 20NiMo9-7F.

Place, publisher, year, edition, pages
2015. p. 504-509
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-30348Scopus ID: 2-s2.0-84965098652ISBN: 978-1-62708-105-4 (electronic)OAI: oai:DiVA.org:ri-30348DiVA, id: diva2:1134701
Conference
28th ASM Heat Treating Society Conference and Exhibition (ASM 2015), October 20-22, 2015, Detroit, US
Available from: 2017-08-21 Created: 2017-08-21 Last updated: 2019-08-08Bibliographically approved

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Stormvinter, Albin

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