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Non-metallic inclusion and their effect on fatigue strength for case-hardened carbon steel in gears
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).ORCID-id: 0000-0003-0453-0503
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
China Euro Vehicle Technology AB, Sweden.
2018 (engelsk)Inngår i: TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. TMS 2018, Springer, 2018, s. 123-133Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Steel is a very essential structural material and its production worldwide has shown significant increase over the last years. In steels there always exist a large number of inclusions which can have a degrading effect on the fatigue properties. This study is focused on the link between the characteristics of non-metallic inclusions and how they affect fatigue strength of the standardized case-hardened carbon steel 20MnCr5 and a version of this steel with a more favorable inclusion distribution, a so-called Clean steel. For the evaluation of the mechanical properties the test result from rotary bending tests are compared and an improvement by 37.5% in fatigue strength can be noted between the different steels. The new performed ultrasonic tests illustrate the difference in the size of defects in materials with different manufacturing processes and degree of reduction. By studying international and European standards for non-destructive testing and investigation of alloy compounds, the current material specification can be adjusted. © The Minerals, Metals & Materials Society 2018.

sted, utgiver, år, opplag, sider
Springer, 2018. s. 123-133
Serie
The Minerals, Metals & Materials Series, ISSN 2367-1181, E-ISSN 2367-1696
Emneord [en]
Clean-steel, Inclusions, Mechanical properties, Standard, Steel, Ultrasonic test, Bending tests, Binary alloys, Carbon steel, Chromium alloys, Fatigue of materials, Fatigue testing, Hardening, Manganese alloys, Nondestructive examination, Standards, Clean steel, Degree of reduction, European Standards, Inclusion distribution, Manufacturing process, Material specification, Non destructive testing, Non-metallic inclusions, Ultrasonic testing
HSV kategori
Forskningsprogram
Teknik, Maskinteknik
Identifikatorer
URN: urn:nbn:se:lnu:diva-83521DOI: 10.1007/978-3-319-72526-0_12Scopus ID: 2-s2.0-85044442225ISBN: 9783319725253 (tryckt)OAI: oai:DiVA.org:lnu-83521DiVA, id: diva2:1318423
Konferanse
TMS 2018147th Annual Meeting & Exhibition, March 11-15 2018, Phoenix, Arizona
Tilgjengelig fra: 2019-05-27 Laget: 2019-05-27 Sist oppdatert: 2019-05-28bibliografisk kontrollert

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