Relation between microstructure and formability of quenching-partitioning-tempering martensitic steel

Qin, Hao; Qin, Shengwei; Liu, Yu; Zuo, Xunwei; Chen, Nailu; Rong, Yonghua

doi:10.1016/j.msea.2016.06.023

Cited by 23 publications

(5 citation statements)

References 43 publications

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“…In Refs. [23,24], quenching-partitioning-tempering (Q-P-T) heat treatment applied to a Fe-0.20C-1.49Mn-1.52Si-0.58Cr-0.05Nb (wt. %) steel led to a better formability compared to the conventional quenching-tempering (Q-T) treatment.…”

Section: Formability Of Ahssmentioning

confidence: 99%

Effect of alloying and microstructure on formability of advanced high-strength steels processed via quenching and partitioning

Xia

Vercruysse

Celada-Casero

et al. 2022

Materials Science and Engineering: A

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Section: Formability Of Ahssmentioning

confidence: 99%

Effect of alloying and microstructure on formability of advanced high-strength steels processed via quenching and partitioning

Xia

Vercruysse

Celada-Casero

et al. 2022

Materials Science and Engineering: A

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“…In this research, the Nakazima hemispherical punch bulging test is used to obtain the FLD of AZ31 and AA7050. According to the recommendation of GB/T 15825.8-2008 standard, 27,28 rectangular samples with different widths are used to obtain the surface ultimate principal strain variables under different strain paths, as presented in Figure 1. The width of the considered samples increases from 20 mm to 180 mm (W20–W180), with an interval of 20 mm and a sheet thickness of 1mm.…”

Section: Finite Element Simulation Based On Abaqusmentioning

confidence: 99%

Predicting forming limit diagrams for AZ31 magnesium alloy and 7050 aluminum alloy by numerical simulation

Xue

Yan

Kang

2020

The Journal of Strain Analysis for Engineering Design

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Forming limit diagram (FLD) is the most intuitive method to evaluate and analyze the forming performance of sheet metal, which is widely used in production. To examine the formability of AZ31 magnesium alloy and 7050 aluminum alloy, the simplified bulging models based on the Nakazima experiment are established by ABAQUS finite element (FE) software, and the maximum punch force criterion is adopted as the instability criterion. The forming limit diagrams of 7050 high-strength aluminum alloy at room temperature and AZ31 magnesium alloy at warm working conditions are obtained by extracting the in-plane strain of the adjacent element of the maximum strain element at the moment of instability. Compared with experimental observation shows that the Nakazima virtual model established in this paper can accurately predict FLD. In addition, the influences of lubrication conditions and virtual punching speeds on the bulging process of AZ31 and AA7050 sheet metals are also investigated. The results show that the better the lubrication environment, or the lower the punching speed, the better the formability of the sheet, and reducing the punching speed has a more significant improvement effect on the formability of AZ31 sheets.

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“…However, as they are a relatively new development, much less is known about their formability than DP, TWIP and TRIP steels [23,24]. Therefore, this study [25] on the formability of high strength low-carbon Q-P-T martensitic steel is to reveal the effects of microstructure on apparent parameters and formability by compared to traditional quenching and tempering (Q&T) martensitic steel with the same composition.…”

Section: Introductionmentioning

confidence: 99%

Formability of quenching-partitioning-tempering martensitic steel

Qin

Liu

et al. 2019

Heat Treatment and Surface Engineering

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A Fe-0.20C-1.49Mn-1.52Si-0.58Cr-0.05Nb (wt%) steel was treated by a novel quenchingpartitioning-tempering (Q-P-T) process and traditional quenching and tempering (Q&T) for comparison, respectively. The researches of the mechanical properties and forming limit diagrams reveal that Q-P-T martensitic steel has more retained austenite (10.8%) than the Q&T martensitic steel (less than 3%), which makes Q-P-T martensitc steel possess higher strain hardening exponent and true uniform elongation than the Q&T martensitic steel. The high value of hardening exponent (n) and true uniform elongation (ε u ) stem from the low initial dislocation density in martensitic matrix in Q-P-T martensitic steel before deformation and the high strain hardening rate and dislocation absorption by retained austenite (DARA) effect of retained austenite during deformation. Moreover, the n, or the ε u , is a most important parameter in all the apparent parameters affecting the formability of metal sheets, and this conclusion is of practical importance in the comparison of several steels' formability. KEYWORDSQuenching-partitioningtempering (Q-P-T) martensitic steel; forming limit diagram; strain hardening exponent; true uniform elongation; dislocation absorption by retained austenite (DARA) effect

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Relation between microstructure and formability of quenching-partitioning-tempering martensitic steel

Cited by 23 publications

References 43 publications

Effect of alloying and microstructure on formability of advanced high-strength steels processed via quenching and partitioning

Effect of alloying and microstructure on formability of advanced high-strength steels processed via quenching and partitioning

Predicting forming limit diagrams for AZ31 magnesium alloy and 7050 aluminum alloy by numerical simulation

Formability of quenching-partitioning-tempering martensitic steel

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