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Impact of internal oxidation and quenching path on fatigue of powertrain components
RISE - Research Institutes of Sweden (2017-2019), Material och produktion, IVF, Tillverkningsprocesser.ORCID-id: 0000-0003-1677-1064
RISE - Research Institutes of Sweden (2017-2019), Material och produktion, IVF.
RISE - Research Institutes of Sweden (2017-2019), Material och produktion, IVF.
RISE., Swerea, KIMAB.
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2015 (Engelska)Ingår i: Heat Treating 2015: Proceedings of the 28th ASM Heat Treating Society Conference, 2015, s. 498-503Konferensbidrag, Publicerat paper (Refereegranskat)
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 l6MnCr5 and 2ONiMo9-7F. 

Ort, förlag, år, upplaga, sidor
2015. s. 498-503
Nyckelord [en]
Case hardening, Fatigue of materials, Heat treating furnaces, Heat treatment, Oxidation, Powertrains, Quenching, Fatigue properties, Fatigue strength, Furnace atmosphere, Gas atmosphere, Hardenability, Martensite start temperature, Powertrain components, Steel components, Internal oxidation
Nationell ämneskategori
Metallurgi och metalliska material
Identifikatorer
URN: urn:nbn:se:ri:diva-30346Scopus ID: 2-s2.0-84965098652ISBN: 978-1-62708-105-4 (digital)OAI: oai:DiVA.org:ri-30346DiVA, id: diva2:1134533
Konferens
28th Heat Treating Society Conference (HEAT TREATING 2015), October 20-22, 2015, Detroit, US
Tillgänglig från: 2017-08-21 Skapad: 2017-08-21 Senast uppdaterad: 2023-05-08Bibliografiskt granskad

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Stormvinter, Albin

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