Regularities of structure modification of 09Mn2Si steel rod at helical rolling and its influence on impact toughness

Abstract

Effect of structure modification induced by the helical rolling on the impact toughness of 09Mn2Si steel was studied. A metallographic structural analysis of the steel in the as-received state as well as after the helical rolling (HR) was carried out. It was revealed that the five-stage combined thermal-mechanical treatment results in ferrite grains refinement, formation of rolling texture at the depth of up to 1 mm, while ultrafine grained structure is formed in the surface layer. This is accompanied by a gradient hardening pattern over the rod's cross-section as evidenced from microhardness measurements. Mechanical properties were assessed through impact bending tests. It is shown that helical rolling gives rise to increasing fracture toughness of the rolled specimens in the entire testing temperature range (-70 ÷ +20 °C). The maximum two-fold increase of impact toughness is registered at the testing temperature of -70 °C. Authors suggest that the main reason for this increase is formation of a gradient fiber-like structure. The latter ensures effective arresting of the main crack growth during the impact bending.

Original language	English
Title of host publication	Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
Editors	Victor E. Panin, Sergey G. Psakhie, Vasily M. Fomin
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735419124
DOIs	https://doi.org/10.1063/1.5132250
Publication status	Published - 19 Nov 2019
Event	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 - Tomsk, Russian Federation Duration: 1 Oct 2019 → 5 Oct 2019

Publication series

Name	AIP Conference Proceedings
Volume	2167
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
Country	Russian Federation
City	Tomsk
Period	1.10.19 → 5.10.19

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.5132250

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Vlasov, I. V., Surikova, N. S., Mishin, I. P., Panin, S. V., Smirnova, A. S., & Yakovlev, A. V. (2019). Regularities of structure modification of 09Mn2Si steel rod at helical rolling and its influence on impact toughness. In V. E. Panin, S. G. Psakhie, & V. M. Fomin (Eds.), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 [020383] (AIP Conference Proceedings; Vol. 2167). American Institute of Physics Inc.. https://doi.org/10.1063/1.5132250

Regularities of structure modification of 09Mn2Si steel rod at helical rolling and its influence on impact toughness. / Vlasov, I. V.; Surikova, N. S.; Mishin, I. P.; Panin, S. V.; Smirnova, A. S.; Yakovlev, A. V.

Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. ed. / Victor E. Panin; Sergey G. Psakhie; Vasily M. Fomin. American Institute of Physics Inc., 2019. 020383 (AIP Conference Proceedings; Vol. 2167).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Vlasov, IV, Surikova, NS, Mishin, IP, Panin, SV, Smirnova, AS & Yakovlev, AV 2019, Regularities of structure modification of 09Mn2Si steel rod at helical rolling and its influence on impact toughness. in VE Panin, SG Psakhie & VM Fomin (eds), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019., 020383, AIP Conference Proceedings, vol. 2167, American Institute of Physics Inc., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019, Tomsk, Russian Federation, 1.10.19. https://doi.org/10.1063/1.5132250

Vlasov IV, Surikova NS, Mishin IP, Panin SV, Smirnova AS, Yakovlev AV. Regularities of structure modification of 09Mn2Si steel rod at helical rolling and its influence on impact toughness. In Panin VE, Psakhie SG, Fomin VM, editors, Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. American Institute of Physics Inc. 2019. 020383. (AIP Conference Proceedings). https://doi.org/10.1063/1.5132250

Vlasov, I. V. ; Surikova, N. S. ; Mishin, I. P. ; Panin, S. V. ; Smirnova, A. S. ; Yakovlev, A. V. / Regularities of structure modification of 09Mn2Si steel rod at helical rolling and its influence on impact toughness. Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019. editor / Victor E. Panin ; Sergey G. Psakhie ; Vasily M. Fomin. American Institute of Physics Inc., 2019. (AIP Conference Proceedings).

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abstract = "Effect of structure modification induced by the helical rolling on the impact toughness of 09Mn2Si steel was studied. A metallographic structural analysis of the steel in the as-received state as well as after the helical rolling (HR) was carried out. It was revealed that the five-stage combined thermal-mechanical treatment results in ferrite grains refinement, formation of rolling texture at the depth of up to 1 mm, while ultrafine grained structure is formed in the surface layer. This is accompanied by a gradient hardening pattern over the rod's cross-section as evidenced from microhardness measurements. Mechanical properties were assessed through impact bending tests. It is shown that helical rolling gives rise to increasing fracture toughness of the rolled specimens in the entire testing temperature range (-70 ÷ +20 °C). The maximum two-fold increase of impact toughness is registered at the testing temperature of -70 °C. Authors suggest that the main reason for this increase is formation of a gradient fiber-like structure. The latter ensures effective arresting of the main crack growth during the impact bending.",

author = "Vlasov, {I. V.} and Surikova, {N. S.} and Mishin, {I. P.} and Panin, {S. V.} and Smirnova, {A. S.} and Yakovlev, {A. V.}",

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AU - Vlasov, I. V.

AU - Surikova, N. S.

AU - Mishin, I. P.

AU - Panin, S. V.

AU - Smirnova, A. S.

AU - Yakovlev, A. V.

PY - 2019/11/19

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N2 - Effect of structure modification induced by the helical rolling on the impact toughness of 09Mn2Si steel was studied. A metallographic structural analysis of the steel in the as-received state as well as after the helical rolling (HR) was carried out. It was revealed that the five-stage combined thermal-mechanical treatment results in ferrite grains refinement, formation of rolling texture at the depth of up to 1 mm, while ultrafine grained structure is formed in the surface layer. This is accompanied by a gradient hardening pattern over the rod's cross-section as evidenced from microhardness measurements. Mechanical properties were assessed through impact bending tests. It is shown that helical rolling gives rise to increasing fracture toughness of the rolled specimens in the entire testing temperature range (-70 ÷ +20 °C). The maximum two-fold increase of impact toughness is registered at the testing temperature of -70 °C. Authors suggest that the main reason for this increase is formation of a gradient fiber-like structure. The latter ensures effective arresting of the main crack growth during the impact bending.

AB - Effect of structure modification induced by the helical rolling on the impact toughness of 09Mn2Si steel was studied. A metallographic structural analysis of the steel in the as-received state as well as after the helical rolling (HR) was carried out. It was revealed that the five-stage combined thermal-mechanical treatment results in ferrite grains refinement, formation of rolling texture at the depth of up to 1 mm, while ultrafine grained structure is formed in the surface layer. This is accompanied by a gradient hardening pattern over the rod's cross-section as evidenced from microhardness measurements. Mechanical properties were assessed through impact bending tests. It is shown that helical rolling gives rise to increasing fracture toughness of the rolled specimens in the entire testing temperature range (-70 ÷ +20 °C). The maximum two-fold increase of impact toughness is registered at the testing temperature of -70 °C. Authors suggest that the main reason for this increase is formation of a gradient fiber-like structure. The latter ensures effective arresting of the main crack growth during the impact bending.

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