High Cycle Fatigue Performance of Hollow-Extruded 6005A-T6 Aluminum Alloy Characterized by a Layered Microstructure

• Autorzy: Ma Zhongwei , Ma Lin , Xu Bo , Dan Chuchen , He Zhaokun , Wang Yue

Identyfikatory

DOI

10.24425/amm.2019.126250

• Języki publikacji: EN

Abstrakty

EN

Sound joint of hollow-extruded 6005A-T6 aluminum alloy was achieved by friction stir welding and its high cycle fatigue performance was mainly investigated. As a result, the joint fatigue limit reaches 128.1 MPa which is 55% of the joint tensile strength. The fatigue fracture mainly occurs at the boundary between the stir zone and thermo-mechanically affected zone due to the large difference in the grain size. This difference is caused by the layered microstructure of the base material. The shell pattern with parallel arcs is the typical morphology in the fracture surface and the distance between arcs is increased with the increase of stress level. The specimen with the fracture located in the stir zone possesses a relatively low fatigue life.

Słowa kluczowe

EN

friction stir welding; hollow-extruded 6005A-T6 aluminum alloy; fatigue; fracture; microstructure

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 285--292
• Opis fizyczny: Bibliogr. 35 poz., fot., rys., tab., wzory

Twórcy

autor

Ma Zhongwei

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang, China

autor

Ma Lin

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang, China

autor

Xu Bo

• CRRC Sifang Co., Ltd, Qingdao 266111, China

autor

Dan Chuchen

• CRRC Sifang Co., Ltd, Qingdao 266111, China

autor

He Zhaokun

• CRRC Sifang Co., Ltd, Qingdao 266111, China

autor

Wang Yue

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang, China

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).