Investigations on microstructure evolution of TA1 titanium alloy subjected to electromagnetic impact loading

• Autorzy: Zhang, Xu , Zhu, Congcong , Hu, Lin , Wu, Hequan , Li, Chunfeng
• Języki publikacji: EN

Abstrakty

EN

In this work, the adiabatic shear band of TA1 titanium alloy subjected to electromagnetic impact loading was investigated. The formation of adiabatic shear band and microstructure evolution within it were revealed by microstructure characterizations. Deformation results showed an adiabatic shear band with the width of 10 mm located in shear deformation zone, and most deformations mainly concentrated in the narrow band. The compressive insta-bility and the hardness difference contributed to the formation of adiabatic shear band. Severe shear deformations led to high location density within the adiabatic shear band. A large amount of dislocations distributed in the form of dislocation cells and random dislocations. The rotational dynamic recrystallization mechanism caused that many dy-namic recrystallization grains with the size of 100–200 nm were found inside the adiabatic shear band. Adiabatic temperature rise and distortion energies stored by high dislocation densities provided sub-grain rotations with the driving forces.

Słowa kluczowe

PL

obciążenie udarowe; stop tytanu; rekrystalizacja dynamiczna; twardość

EN

electromagnetic impact loading; TA1 titanium alloy; dynamic recrystallization; hardness

• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 3
• Strony: 639--647
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., wykr.

Twórcy

autor

Zhang, Xu

• College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410004, China

autor

Zhu, Congcong

• State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China

autor

Hu, Lin

• School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

autor

Wu, Hequan

• College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410004, China,

autor

Li, Chunfeng

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)

Identyfikatory

DOI

10.1016/j.acme.2019.01.002