Impact of Deformation Twinning on the Mechanical Properties of B.C.C.-Lattice-Based Alloys
Yu. V. Milman, I. V. Goncharova
I. M. Frantsevich Institute for Problems in Materials Science, NAS of Ukraine, 3 Academician Krzhyzhanovsky Str., UA-03142 Kyiv, Ukraine
Received: 25.05.2017. Download: PDF
Deformation twinning exerts a great influence on the low-temperature plasticity of b.c.c. metals. The article reviews publications relating to this problem. We consider results of the study of alloys' tendency to twinning and its impact on mechanical properties of Cr-, Mo-, W-, and Fe-based alloys as well as 'rhenium effect' of increase of plasticity with an alloying. It is noted the effectiveness of indentation technique for both the determination of the tendency to twinning of alloys and the study of mechanism of deformation of the low-ductile materials, to which these alloys are belonged. The stress–strain curves and the strain hardening of strongly twinning alloys are presented.
Keywords: twinning, mechanical properties, hardness, cold brittleness.
PACS: 61.50.-f, 61.66.-f, 61.72.Lk, 61.72.Mm, 61.72.Nn, 62.20.-x, 62.20.F-
Citation: Yu. V. Milman and I. V. Goncharova, Impact of Deformation Twinning on the Mechanical Properties of B.C.C.-Lattice-Based Alloys, Usp. Fiz. Met., 18, No. 3: 265—294 (2017) (in Russian), doi: 10.15407/ufm.18.03.265