Impact toughness of 12Cr1MoV steel. Part 2 - Influence of high intensity ion beam irradiation on energy and deformation parameters and mechanisms of fracture — National Research Tomsk Polytechnic University

Abstract

The impact toughness of initial and irradiated 12Cr1MoV steel Charpy specimens has been studied in the range of temperatures from 20 °C to 600 °C. In addition, it was found that ion beam treatment of steel deteriorates the impact toughness at the tested temperatures by 5-42%. Moreover, it was revealed that the increase of testing temperature decreases the difference between the fracture energies of initial and modified steel specimens. Also, the physical regularities of irradiation effect on microhardness and hardness of the treated surface were investigated. It was also revealed that irradiated specimens fracture via more brittle mechanism, which is related to both more severe stress-strain state at the notch tip and gradient alteration of properties in the subsurface layer.

Original language	English
Pages (from-to)	82-92
Number of pages	11
Journal	Theoretical and Applied Fracture Mechanics
Volume	83
DOIs	https://doi.org/10.1016/j.tafmec.2015.12.009
Publication status	Published - 1 Jun 2016

Keywords

Fracture
Impact toughness
Ion beam treatment
Physical mesomechanics

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanical Engineering
Applied Mathematics

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10.1016/j.tafmec.2015.12.009

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Impact toughness of 12Cr1MoV steel. Part 2 - Influence of high intensity ion beam irradiation on energy and deformation parameters and mechanisms of fracture. / Panin, Sergey V.; Maruschak, P. O.; Vlasov, I. V.; Sergeev, Victor Petrovich ; Ovechkin, B. B.; Neifeld, V. V.

In: Theoretical and Applied Fracture Mechanics, Vol. 83, 01.06.2016, p. 82-92.

Research output: Contribution to journal › Article › peer-review

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abstract = "The impact toughness of initial and irradiated 12Cr1MoV steel Charpy specimens has been studied in the range of temperatures from 20 °C to 600 °C. In addition, it was found that ion beam treatment of steel deteriorates the impact toughness at the tested temperatures by 5-42%. Moreover, it was revealed that the increase of testing temperature decreases the difference between the fracture energies of initial and modified steel specimens. Also, the physical regularities of irradiation effect on microhardness and hardness of the treated surface were investigated. It was also revealed that irradiated specimens fracture via more brittle mechanism, which is related to both more severe stress-strain state at the notch tip and gradient alteration of properties in the subsurface layer.",

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author = "Panin, {Sergey V.} and Maruschak, {P. O.} and Vlasov, {I. V.} and Sergeev, {Victor Petrovich} and Ovechkin, {B. B.} and Neifeld, {V. V.}",

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AU - Panin, Sergey V.

AU - Maruschak, P. O.

AU - Vlasov, I. V.

AU - Sergeev, Victor Petrovich

AU - Ovechkin, B. B.

AU - Neifeld, V. V.

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AB - The impact toughness of initial and irradiated 12Cr1MoV steel Charpy specimens has been studied in the range of temperatures from 20 °C to 600 °C. In addition, it was found that ion beam treatment of steel deteriorates the impact toughness at the tested temperatures by 5-42%. Moreover, it was revealed that the increase of testing temperature decreases the difference between the fracture energies of initial and modified steel specimens. Also, the physical regularities of irradiation effect on microhardness and hardness of the treated surface were investigated. It was also revealed that irradiated specimens fracture via more brittle mechanism, which is related to both more severe stress-strain state at the notch tip and gradient alteration of properties in the subsurface layer.

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