Standard

Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel. / Morete Barbosa Bertolo, Virgínia; Jiang, Q.; Walters, C. L.; Popovich, V. A.

Characterization of Minerals, Metals, and Materials 2020. ed. / Jian Li; Mingming Zhang; Bowen Li; et al. Cham, Switzerland : Springer, 2020. p. 155-168 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Harvard

Morete Barbosa Bertolo, V, Jiang, Q, Walters, CL & Popovich, VA 2020, Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel. in J Li, M Zhang, B Li & EA (eds), Characterization of Minerals, Metals, and Materials 2020. Minerals, Metals and Materials Series, Springer, Cham, Switzerland, pp. 155-168, TMS 2020: 149th Annual Meeting & Exhibition of the Minerals, Metals and Materials Society, San Diego, United States, 23/02/20. https://doi.org/10.1007/978-3-030-36628-5_15

APA

Morete Barbosa Bertolo, V., Jiang, Q., Walters, C. L., & Popovich, V. A. (2020). Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel. In J. Li, M. Zhang, B. Li, & E. A. (Eds.), Characterization of Minerals, Metals, and Materials 2020 (pp. 155-168). (Minerals, Metals and Materials Series). Springer. https://doi.org/10.1007/978-3-030-36628-5_15

Vancouver

Morete Barbosa Bertolo V, Jiang Q, Walters CL, Popovich VA. Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel. In Li J, Zhang M, Li B, EA, editors, Characterization of Minerals, Metals, and Materials 2020. Cham, Switzerland: Springer. 2020. p. 155-168. (Minerals, Metals and Materials Series). https://doi.org/10.1007/978-3-030-36628-5_15

Author

Morete Barbosa Bertolo, Virgínia ; Jiang, Q. ; Walters, C. L. ; Popovich, V. A. / Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel. Characterization of Minerals, Metals, and Materials 2020. editor / Jian Li ; Mingming Zhang ; Bowen Li ; et al. Cham, Switzerland : Springer, 2020. pp. 155-168 (Minerals, Metals and Materials Series).

BibTeX

@inproceedings{14ede541ee1b4849a22154254dc5996e,
title = "Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel",
abstract = "One of the main challenges in applying thick-section high-strength steels (HSS) at arctic condition in offshore and maritime industry is to maintain a sufficient level of toughness to prevent brittle failure. An aspect that requires special attention is the through-thickness microstructural variation which may result in different local mechanical responses affecting the overall material{\textquoteright}s fracture behaviour. This paper presents an experimental study combining microstructural investigation and sub-sized fracture toughness testing at −100 °C of different sections of 80 mm S690QL steel aimed to evaluate the effect of microstructure on cleavage fracture. In addition, different crack depth to width ratios (a/W) were used to investigate the constraint effect, while different notch orientations were applied to assess the effect of rolling orientation. Results show lower fracture toughness for the middle of the plate, which was attributed to the presence of large Nb-rich inclusions which may feature pre-existing cracks and/or defects in the inclusion/matrix interface and also often distributed as clusters. It was also observed that a/W ratio plays an important role in fracture toughness showing shallow-notched specimens with substantially higher fracture toughness than deep cracked specimens. Moreover, microstructural features such as inclusions aligned parallel to the pre-crack can ease the crack propagation and contribute to a reduction in fracture toughness.",
keywords = "Cleavage fracture, Fracture toughness, Microstructure, Multiphase high-strength steel",
author = "{Morete Barbosa Bertolo}, Virg{\'i}nia and Q. Jiang and Walters, {C. L.} and Popovich, {V. A.}",
year = "2020",
doi = "10.1007/978-3-030-36628-5_15",
language = "English",
isbn = "978-3-030-36627-8",
series = "Minerals, Metals and Materials Series",
publisher = "Springer",
pages = "155--168",
editor = "Li, {Jian } and Zhang, {Mingming } and Li, {Bowen } and {et al.}",
booktitle = "Characterization of Minerals, Metals, and Materials 2020",
note = "TMS 2020: 149th Annual Meeting & Exhibition of the Minerals, Metals and Materials Society ; Conference date: 23-02-2020 Through 27-02-2020",

}

RIS

TY - GEN

T1 - Effect of microstructure on cleavage fracture of thick-section quenched and tempered S690 high-strength steel

AU - Morete Barbosa Bertolo, Virgínia

AU - Jiang, Q.

AU - Walters, C. L.

AU - Popovich, V. A.

PY - 2020

Y1 - 2020

N2 - One of the main challenges in applying thick-section high-strength steels (HSS) at arctic condition in offshore and maritime industry is to maintain a sufficient level of toughness to prevent brittle failure. An aspect that requires special attention is the through-thickness microstructural variation which may result in different local mechanical responses affecting the overall material’s fracture behaviour. This paper presents an experimental study combining microstructural investigation and sub-sized fracture toughness testing at −100 °C of different sections of 80 mm S690QL steel aimed to evaluate the effect of microstructure on cleavage fracture. In addition, different crack depth to width ratios (a/W) were used to investigate the constraint effect, while different notch orientations were applied to assess the effect of rolling orientation. Results show lower fracture toughness for the middle of the plate, which was attributed to the presence of large Nb-rich inclusions which may feature pre-existing cracks and/or defects in the inclusion/matrix interface and also often distributed as clusters. It was also observed that a/W ratio plays an important role in fracture toughness showing shallow-notched specimens with substantially higher fracture toughness than deep cracked specimens. Moreover, microstructural features such as inclusions aligned parallel to the pre-crack can ease the crack propagation and contribute to a reduction in fracture toughness.

AB - One of the main challenges in applying thick-section high-strength steels (HSS) at arctic condition in offshore and maritime industry is to maintain a sufficient level of toughness to prevent brittle failure. An aspect that requires special attention is the through-thickness microstructural variation which may result in different local mechanical responses affecting the overall material’s fracture behaviour. This paper presents an experimental study combining microstructural investigation and sub-sized fracture toughness testing at −100 °C of different sections of 80 mm S690QL steel aimed to evaluate the effect of microstructure on cleavage fracture. In addition, different crack depth to width ratios (a/W) were used to investigate the constraint effect, while different notch orientations were applied to assess the effect of rolling orientation. Results show lower fracture toughness for the middle of the plate, which was attributed to the presence of large Nb-rich inclusions which may feature pre-existing cracks and/or defects in the inclusion/matrix interface and also often distributed as clusters. It was also observed that a/W ratio plays an important role in fracture toughness showing shallow-notched specimens with substantially higher fracture toughness than deep cracked specimens. Moreover, microstructural features such as inclusions aligned parallel to the pre-crack can ease the crack propagation and contribute to a reduction in fracture toughness.

KW - Cleavage fracture

KW - Fracture toughness

KW - Microstructure

KW - Multiphase high-strength steel

UR - http://www.scopus.com/inward/record.url?scp=85079196200&partnerID=8YFLogxK

U2 - 10.1007/978-3-030-36628-5_15

DO - 10.1007/978-3-030-36628-5_15

M3 - Conference contribution

AN - SCOPUS:85079196200

SN - 978-3-030-36627-8

T3 - Minerals, Metals and Materials Series

SP - 155

EP - 168

BT - Characterization of Minerals, Metals, and Materials 2020

A2 - Li, Jian

A2 - Zhang, Mingming

A2 - Li, Bowen

A2 - null, et al.

PB - Springer

CY - Cham, Switzerland

T2 - TMS 2020: 149th Annual Meeting & Exhibition of the Minerals, Metals and Materials Society

Y2 - 23 February 2020 through 27 February 2020

ER -

ID: 69963024