Dislocation structure and deformation hardening alloy fcc single crystals at the mesolevel

International Conference and Youth Scientific School on "Materials and Technologies of New Generations in Modern Materials Science"

Teplyakova, L.A.^1 ; Kunitsyna, T.S.^1,2 ; Koneva, N.A.^1 ; Kozlov, E.V.^1 ; Kondratyuk, A.A.^2 ; Zboikova, N.A.^1 ; Kakushkin, Yu A^1 ; Iakhin, A.A.^2

Tomsk State University of Architecture and Building, Solyanaya Sq. 2, Tomsk

634003, Russia^1

National Research Tomsk Polytechnic University, Lenin Ave. 30, Tomsk

634050, Russia^2

关键词: Contact interaction;    Deformation resistance;    Dislocation structures;    Dislocation substructures;    Fcc Single crystals;    Measured parameters;    Moving dislocation;    Strengthening mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/156/1/012010/pdf
DOI  :  10.1088/1757-899X/156/1/012010

来源: IOP

【 摘 要 】

The article presents the evaluation results of impacts of various strengthening mechanisms to flow stress. Such evaluations were made on the basis of the measured parameters of the dislocation substructure formed in monocrystals of [001]-Ni3Fe alloy deformed by compression within the stage II. It was found that the main impact to deformation resistance in the alloys with net substructure is made by the mechanism of dislocation impediment, which is caused by contact interaction between moving dislocations and forest dislocations.