Features of the surface relief of TiNi alloy in coarse-grained and ultrafine-grained states at room and elevated temperatures

Research output

Abstract

The effect of coarse-grained (CG) and ultrafine-grained (UFG) structures processed by equal channel angular pressing on the formation and features of the surface relief during mechanical tensile tests at room and elevated temperatures was studied. The formation of the UFG structure leads to a significant increase in strength, but the ductility decreases. Coarsegrained samples in the quenched state after tensile tests have a developed relief and microcracks. After tensile testing of the annealed CG sample, a similar situation is observed. On samples in the UFG state, no developed relief and cracks were found. The surface of the UFG sample in the annealed state at a temperature of 500 °C shows a very weak relief, but no cracks are observed. Possible reasons of these effects are discussed.

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Cracks
Equal channel angular pressing
Tensile testing
Microcracks
Ductility
Temperature
Ultrafine

Cite this

@article{ee2b4000a40546ec80b88c288580cbc0,
title = "Features of the surface relief of TiNi alloy in coarse-grained and ultrafine-grained states at room and elevated temperatures",
abstract = "The effect of coarse-grained (CG) and ultrafine-grained (UFG) structures processed by equal channel angular pressing on the formation and features of the surface relief during mechanical tensile tests at room and elevated temperatures was studied. The formation of the UFG structure leads to a significant increase in strength, but the ductility decreases. Coarsegrained samples in the quenched state after tensile tests have a developed relief and microcracks. After tensile testing of the annealed CG sample, a similar situation is observed. On samples in the UFG state, no developed relief and cracks were found. The surface of the UFG sample in the annealed state at a temperature of 500 °C shows a very weak relief, but no cracks are observed. Possible reasons of these effects are discussed.",
author = "Чуракова, {Анна Александровна} and Гундеров, {Дмитрий Валерьевич} and Эльмира Гильманова",
year = "2018",
month = "11",
day = "22",
language = "English",
volume = "447",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",

}

TY - JOUR

T1 - Features of the surface relief of TiNi alloy in coarse-grained and ultrafine-grained states at room and elevated temperatures

AU - Чуракова, Анна Александровна

AU - Гундеров, Дмитрий Валерьевич

AU - Гильманова, Эльмира

PY - 2018/11/22

Y1 - 2018/11/22

N2 - The effect of coarse-grained (CG) and ultrafine-grained (UFG) structures processed by equal channel angular pressing on the formation and features of the surface relief during mechanical tensile tests at room and elevated temperatures was studied. The formation of the UFG structure leads to a significant increase in strength, but the ductility decreases. Coarsegrained samples in the quenched state after tensile tests have a developed relief and microcracks. After tensile testing of the annealed CG sample, a similar situation is observed. On samples in the UFG state, no developed relief and cracks were found. The surface of the UFG sample in the annealed state at a temperature of 500 °C shows a very weak relief, but no cracks are observed. Possible reasons of these effects are discussed.

AB - The effect of coarse-grained (CG) and ultrafine-grained (UFG) structures processed by equal channel angular pressing on the formation and features of the surface relief during mechanical tensile tests at room and elevated temperatures was studied. The formation of the UFG structure leads to a significant increase in strength, but the ductility decreases. Coarsegrained samples in the quenched state after tensile tests have a developed relief and microcracks. After tensile testing of the annealed CG sample, a similar situation is observed. On samples in the UFG state, no developed relief and cracks were found. The surface of the UFG sample in the annealed state at a temperature of 500 °C shows a very weak relief, but no cracks are observed. Possible reasons of these effects are discussed.

UR - http://iopscience.iop.org/article/10.1088/1757-899X/447/1/012046

M3 - Conference article

VL - 447

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

ER -