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Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping

Based on the indirect hot-stamping test system, the effect of pre-forming on the microstructure evolution (grain size, dislocation density, martensite phase transformation) and mechanical properties of the blank in indirect hot stamping is systematically studied using ultra-high-strength steel 22MnB...

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Autores principales: Tang, Ziming, Gu, Zhengwei, Li, Yi, Li, Xin, Yu, Ge, Yi, Lingling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10224411/
https://www.ncbi.nlm.nih.gov/pubmed/37241364
http://dx.doi.org/10.3390/ma16103739
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author Tang, Ziming
Gu, Zhengwei
Li, Yi
Li, Xin
Yu, Ge
Yi, Lingling
author_facet Tang, Ziming
Gu, Zhengwei
Li, Yi
Li, Xin
Yu, Ge
Yi, Lingling
author_sort Tang, Ziming
collection PubMed
description Based on the indirect hot-stamping test system, the effect of pre-forming on the microstructure evolution (grain size, dislocation density, martensite phase transformation) and mechanical properties of the blank in indirect hot stamping is systematically studied using ultra-high-strength steel 22MnB5. It is found that the average austenite grain size slightly decreases with the increase in pre-forming. After quenching, the martensite also becomes finer and more uniformly distributed. Although the dislocation density after quenching slightly decreases with the increase in pre-forming, the overall mechanical properties of the quenched blank are not greatly affected by pre-forming under the combined effect of the grain size and dislocation density. Then, this paper discusses the effect of the pre-forming volume on part formability in indirect hot stamping by manufacturing a typical beam part. According to the numerical simulations and experimental results, when the pre-forming volume increases from 30% to 90%, the maximum thickness thinning rate of the beam part decreases from 30.1% to 19.1%, and the final beam part has better formability and more uniform thickness distribution results when the pre-forming volume is 90%.
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spelling pubmed-102244112023-05-28 Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping Tang, Ziming Gu, Zhengwei Li, Yi Li, Xin Yu, Ge Yi, Lingling Materials (Basel) Article Based on the indirect hot-stamping test system, the effect of pre-forming on the microstructure evolution (grain size, dislocation density, martensite phase transformation) and mechanical properties of the blank in indirect hot stamping is systematically studied using ultra-high-strength steel 22MnB5. It is found that the average austenite grain size slightly decreases with the increase in pre-forming. After quenching, the martensite also becomes finer and more uniformly distributed. Although the dislocation density after quenching slightly decreases with the increase in pre-forming, the overall mechanical properties of the quenched blank are not greatly affected by pre-forming under the combined effect of the grain size and dislocation density. Then, this paper discusses the effect of the pre-forming volume on part formability in indirect hot stamping by manufacturing a typical beam part. According to the numerical simulations and experimental results, when the pre-forming volume increases from 30% to 90%, the maximum thickness thinning rate of the beam part decreases from 30.1% to 19.1%, and the final beam part has better formability and more uniform thickness distribution results when the pre-forming volume is 90%. MDPI 2023-05-15 /pmc/articles/PMC10224411/ /pubmed/37241364 http://dx.doi.org/10.3390/ma16103739 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tang, Ziming
Gu, Zhengwei
Li, Yi
Li, Xin
Yu, Ge
Yi, Lingling
Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
title Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
title_full Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
title_fullStr Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
title_full_unstemmed Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
title_short Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
title_sort study on the effect of the pre-forming of 22mnb5 steel in indirect hot stamping
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10224411/
https://www.ncbi.nlm.nih.gov/pubmed/37241364
http://dx.doi.org/10.3390/ma16103739
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