铬合金化Q&P钢的热处理工艺优化与碳配分行为

doi:10.13251/j.issn.0254-6051.2024.09.018

金属热处理 ›› 2024, Vol. 49 ›› Issue (9): 110-116.DOI: 10.13251/j.issn.0254-6051.2024.09.018

铬合金化Q&P钢的热处理工艺优化与碳配分行为

张宇¹, 李圣阳², 魏晓蓼², 柴志松³, 李泳²

1.鞍钢集团北京研究院有限公司, 北京 102209;
2.东北大学轧制技术及连轧自动化国家重点实验室, 辽宁沈阳 110819;
3.上海理想汽车科技有限公司, 上海 201805

收稿日期:2024-04-17 修回日期:2024-07-28 出版日期:2024-09-25 发布日期:2024-10-29
作者简介:张宇(1981—),女,高级工程师,博士,主要研究方向为汽车用先进高强钢研发及材料基因组方法在研发过程中应用,E-mail:15104124606@163.com
基金资助:
国家自然科学基金联合基金(U22A20106)

Heat treatment optimization and carbon partitioning behavior of Cr-alloyed Q&P steel

Zhang Yu¹, Li Shengyang², Wei Xiaolu², Chai Zhisong³, Li Yong²

1. Ansteel Beijing Research Institute Co., Ltd., Beijing 102209, China;
2. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang Liaoning 110819, China;
3. Li Auto Inc., Shanghai 201805, China

Received:2024-04-17 Revised:2024-07-28 Online:2024-09-25 Published:2024-10-29

摘要/Abstract

摘要： 设计出新型Cr合金化(＞2%)Q&P钢,研究了淬火及配分工艺对其组织与性能的影响,并通过热动力学计算评估了Cr对Q&P钢残留奥氏体体积分数及碳配分行为的影响。结果表明,淬火温度为230 ℃及配分温度为400 ℃条件下,Cr合金化Q&P钢获得了最佳的强塑性匹配(抗拉强度1180 MPa,断裂总延伸率18.6%),强塑积达到21 GPa·%;同时,400 ℃配分温度下,在较宽的淬火温度区间内(210~270 ℃),Q&P钢强塑积均超过19.5 GPa·%。热动力学计算结果表明,相比常规成分Q&P钢,Cr合金化提高了配分过程中奥氏体碳含量从而提高了Q&P钢中残留奥氏体体积分数及稳定性。

关键词: Q&P钢, 显微组织, 力学性能, 残留奥氏体, 碳配分

Abstract: A new type of Cr-alloyed (>2%) Q&P steel was designed, and the effects of quenching and partitioning processes on the microstructure and properties of the tested steel were studied. The effect of Cr on the volume fraction of retained austenite and carbon partitioning of the Q&P steel was evaluated through thermodynamic calculations. The results show that when the quenching temperature is 230 ℃ and the partitioning temperature is 400 ℃, the Cr-alloyed Q&P steel obtains the best strength-plasticity matching (tensile strength of 1180 MPa, percentage total extension at fracture of 18.6%), and the strength-elongation product reaches 21 GPa·%. At the same time, in a wide quenching temperature range (210-270 ℃), the strength-elongation product exceeds 19.5 GPa·%. Thermodynamic calculation results show that compared with conventional composition Q&P steel, Cr-alloying increases the carbon content in austenite during the partitioning process, thereby increasing the volume fraction and stability of retained austenite.

Key words: Q&P steel, microstructure, mechanical properties, retained austenite, carbon partitioning

中图分类号:

TG142.1

张宇, 李圣阳, 魏晓蓼, 柴志松, 李泳. 铬合金化Q&P钢的热处理工艺优化与碳配分行为[J]. 金属热处理, 2024, 49(9): 110-116.

Zhang Yu, Li Shengyang, Wei Xiaolu, Chai Zhisong, Li Yong. Heat treatment optimization and carbon partitioning behavior of Cr-alloyed Q&P steel[J]. Heat Treatment of Metals, 2024, 49(9): 110-116.

参考文献

[1]Senuma T. Physical metallurgy of modern high strength steel sheets[J]. ISIJ International, 2001, 41(6): 520-532.
[2]姜英花, 李钊, 阳锋, 等. 淬火、配分温度对 1180 MPa 淬火配分钢力学性能和扩孔性的影响[J]. 金属热处理, 2023, 48(12): 60-64.
Jiang Yinghua, Li Zhao, Yang Feng, et al. Effect of quenching and partitioning temperature on mechanical properties and hole expansion property of 1180 MPa Q&P steel[J]. Heat Treatment of Metals, 2023, 48(12): 60-64.
[3]刘麟, 徐海卫, 李红斌, 等. 两相区连续退火均热温度对 Q&P980 钢组织性能的影响[J]. 金属热处理, 2022, 47(8): 177-182.
Liu Lin, Xu Haiwei, Li Hongbin, et al. Effect of intercritical continuous annealing temperature on microstructure and properties of Q&P980 steel[J]. Heat Treatment of Metals, 2022, 47(8): 177-182.
[4]Seo E J, Cho L, De Cooman B C. Application of quenching and partitioning(Q&P) processing to press hardening steel[J]. Metallurgical and Materials Transactions A, 2014, 45(9): 4022-4037.
[5]Gaudez S, Teixeira J, Allain S Y P, et al. Numerical investigations of the effects of substitutional elements on the interface conditions during partitioning in quenching and partitioning steels[J]. Metallurgical and Materials Transactions A, 2018, 49(7): 2568-2572.
[6]Lee S J, Matlock D K, Van Tyne C J. Carbon diffusivity in multi-component austenite[J]. Scripta Materialia, 2011, 64(9): 805-808.
[7]Lee S J, Matlock D K, Van Tyne C J. An empirical model for carbon diffusion in austenite incorporating alloying element effects[J]. ISIJ International, 2011, 51(11): 1903-1911.
[8]Pierce D T, Coughlin D R, Clarke K D, et al. Microstructural evolution during quenching and partitioning of 0.2C-1.5Mn-1.3Si steels with Cr or Ni additions[J]. Acta Materialia, 2018, 151: 454-469.
[9]Seo E J, Cho L, De Cooman B C. Application of quenching and partitioning processing to medium Mn steel[J]. Metallurgical and Materials Transactions A, 2014, 46(1): 27-31.
[10]Jirková H, Kučerová L, Aišman D, et al. Optimization of the Q-P process parameters for low alloyed steels with 0. 2%C[J]. Archives of Metallurgy and Materials, 2014, 59(3): 1205-1210.
[11]Jirková H, Kučerová L, Mašek B. The effect of chromium on microstructure development during Q-P process[J]. Materials Today: Proceedings, 2015, 2: S627-S630.
[12]Speer J, Matlock D K, De Cooman B C, et al. Carbon partitioning into austenite after martensite transformation[J]. Acta Materialia, 2003, 51(9): 2611-2622.
[13]Li Y, Chen S, Wang C, et al. Modeling retained austenite in Q&P steels accounting for the bainitic transformation and correction of its mismatch on optimal conditions[J]. Acta Materialia, 2020, 188: 528-538.
[14]Wei X, Chai Z, Lu Q, et al. Cr-alloyed novel press-hardening steel with superior combination of strength and ductility[J]. Materials Science and Engineering A, 2021, 819: 141461.
[15]Wang Y, Xu Y, Zhang T, et al. Effects of quenching temperature on bainite transformation, retained austenite and mechanical properties of hot-galvanized Q&P steel[J]. Materials Science and Engineering A, 2021, 822: 141643.
[16]Chen S, Wang C, Shan L, et al. Revealing the conditions of bainitic transformation in quenching and partitioning steels[J]. Metallurgical and Materials Transactions A, 2019, 50(9): 4037-4046.
[17]Seo E J, Cho L, De Cooman B C. Kinetics of the partitioning of carbon and substitutional alloying elements during quenching and partitioning (Q&P) processing of medium Mn steel[J]. Acta Materialia, 2016, 107: 354-365.

铬合金化Q&P钢的热处理工艺优化与碳配分行为

Heat treatment optimization and carbon partitioning behavior of Cr-alloyed Q&P steel

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