Influence of shot peening on fatigue durability of decarburized spring steels

Dalaei, Kamellia,1975Chalmers tekniska högskola,Chalmers University of Technology (författare)

The influence of shot peening on high cycle fatigue behaviour of spring steel was investi-gated. The material studied was a quenched and tempered carbon steel 51SiCr7 (0.55 C, 1.9 Si and 0.9 Mn). Three series of fatigue specimens with zero, 0.15 and 0.45 mm depth of decarburization were produced. Half of the specimens from each series were shot peened, leading to a thickness of the compressed surface layer of about 0.25 mm. The specimens were tested in bending fatigue. A 45% improvement in fatigue limit of the decarburized series was achieved after shot peening. The detail of relaxation of the residual stresses was followed and compared for different series of specimens.

Höijer, Jonas (författare)
Åkerström, Gunnar (författare)
Karlsson, Birger,1941Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bk (författare)
Chalmers tekniska högskola (creator_code:org_t)

Ingår i:Proceeding of international shot peening conference (ICSP 11), s. 183-1889780615497235

Av författaren/redakt...: Dalaei, Kamellia ...; Höijer, Jonas; Åkerström, Gunna ...; Karlsson, Birger ...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Annan materialte ...

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