Microstructure, mechanical properties, and wear properties of friction-stir processed S45C steel

Park, Jong-Wook; Jung, Hee-Young; Jeong, Wonki; Shin, Se-Eun; Fujii, Hidetoshi; Kim, Hyun-Joon; Lee, Seung-Joon

doi:10.1016/j.triboint.2023.108646

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Microstructure, mechanical properties, and wear properties of friction-stir processed S45C steel

Park, Jong-Wook;
Jung, Hee-Young;
Jeong, Wonki;
Shin, Se-Eun;
Fujii, Hidetoshi;
... Kim, Hyun-Joon;
외 1명

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초록

The present study aims to investigate the microstructure, mechanical properties, and wear resistance of S45C steel after friction-stir welding (FSW) by using a sliding wear test, a 3D laser scanning microscope, and an electron backscattered diffractometer. The base metal showed long ploughing and cutting, indicating adhesive/ abrasive wear. After FSW, the thermo-mechanical affected zone presented better wear resistance, displaying only abrasions due to accumulated dislocations and grain refinement mainly due to continuous dynamic recrystallization. The stir zone showed the highest wear resistance, with short ploughing and cutting due to its higher strain hardening capability.

키워드

Friction stir welding; Phase transformation; Recrystallization; Wear properties; LOW-CARBON-STEEL; WELDED HIGH-CARBON; ABRASIVE WEAR; TEXTURE EVOLUTION; CRYSTALLOGRAPHIC TEXTURE; DELAMINATION THEORY; WELDING PARAMETERS; TENSILE PROPERTIES; WARM DEFORMATION; RESIDUAL-STRESS

제목: Microstructure, mechanical properties, and wear properties of friction-stir processed S45C steel

저자: Park, Jong-Wook; Jung, Hee-Young; Jeong, Wonki; Shin, Se-Eun; Fujii, Hidetoshi; Kim, Hyun-Joon; Lee, Seung-Joon

DOI: 10.1016/j.triboint.2023.108646

발행일: 2023-08

유형: Article

저널명: Tribology International

권: 186

언어: ENG

출판사: ELSEVIER SCI LTD

발행국가: 영국

ISSN: E 1879-2464
P 0301-679X