奥氏体化温度对1500 MPa冷轧Q&P钢组织性能的影响

doi:10.13251/j.issn.0254-6051.2025.02.039

金属热处理 ›› 2025, Vol. 50 ›› Issue (2): 247-250.DOI: 10.13251/j.issn.0254-6051.2025.02.039

奥氏体化温度对1500 MPa冷轧Q&P钢组织性能的影响

蔡顺达^1,2, 辛利峰³, 宋利伟^1,2, 阮国庆³, 孙荣生^1,2,4, 钟莉莉^1,2

1.海洋装备用金属材料及其应用国家重点实验室, 辽宁鞍山 114009;
2.鞍钢集团钢铁研究院, 辽宁鞍山 114009;
3.鞍钢股份冷轧厂, 辽宁鞍山 114021;
4.鞍钢神钢冷轧高强汽车钢板有限公司, 辽宁鞍山 114009

收稿日期:2024-06-14 修回日期:2024-09-18 发布日期:2025-04-10
作者简介:蔡顺达(1993—),男,工程师,硕士,主要研究方向为冷轧全流程工艺开发及高强汽车钢冷轧工艺优化,E-mail:845671540@qq.com
基金资助:
辽宁省自然科学基金(2022-MS-450)

Effect of austenitizing temperature on microstructure and properties of 1500 MPa cold-rolled Q&P steel

Cai Shunda^1,2, Xin Lifeng³, Song Liwei^1,2, Ruan Guoqing³, Sun Rongsheng^1,2,4, Zhong Lili^1,2

1. State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan Liaoning 114009, China;
2. Ansteel Iron & Steel Research Institute, Anshan Liaoning 114009, China;
3. Ansteel Cold Rolling Plant, Anshan Liaoning 114021, China;
4. KOBELCO ANGANG Auto Steel Co., Ltd, Anshan Liaoning 114009, China

Received:2024-06-14 Revised:2024-09-18 Published:2025-04-10

摘要/Abstract

摘要： 利用光学显微镜、扫描电镜、X射线衍射仪和拉伸试验机,研究了奥氏体化温度对1500 MPa级Q&P钢的组织、残留奥氏体含量及力学性能的影响。结果表明,不同奥氏体化温度下试验钢经过相同的缓冷、淬火和配分工艺后均由铁素体、马氏体和残留奥氏体组成,但各相的含量和晶粒尺寸存在较大差异。经过相同的缓冷、淬火和配分工艺后,马氏体和残留奥氏体含量随着临界区奥氏体化温度(750、800 ℃)升高显著增加,高温临界区(800 ℃)奥氏体化与完全奥氏体化(850 ℃)温度条件下的相比例无显著差异。试验钢的平均晶粒尺寸随奥氏体化温度的升高而减小。750、800和850 ℃奥氏体化后试验钢中残留奥氏体体积分数分别为8.7%、13.3%和12.0%。800 ℃奥氏体化后试验钢的综合力学性能最佳,屈服强度为1169 MPa,抗拉强度为1503 MPa,伸长率为13.3%。力学性能主要受相比例、细晶强化作用和残留奥氏体分布共同影响。

关键词: 奥氏体化温度, Q&P钢, 组织性能

Abstract: Effect of austenitizing temperature on microstructure, retained austenite content and mechanical properties of 1500 MPa grade Q&P steel was studied by means of optical microscope, scanning electron microscope, X-ray diffractometer and tensile testing machine. The results indicate that the tested steel is composed of ferrite, martensite and retained austenite austenitized at different temperatures, slow cooled, quenched and partitioned, but there are significant differences in the content of each phase and grain size. After the same slow cooling, quenching and partitioning process, the content of martensite and retained austenite significantly increases during intercritical austenitizing (750, 800 ℃), while there is no significant difference in the proportion of phases between high-temperature intercritical austenitizing at 800 ℃ and complete austenitizing at 850 ℃. The average grain size of the tested steel decreases with the increase of austenitizing temperature. The volume fraction of retained austenite in the tested steel austenitized at 750, 800 and 850 ℃ is 8.7%, 13.3% and 12.0%, respectively. The comprehensive mechanical properties of the tested steel are optimal when austenitized at 800 ℃, with a yield strength of 1169 MPa, tensile strength of 1503 MPa and elongation of 13.3%. The mechanical properties are mainly affected by the phase proportion, fine grain strengthening effect and retained austenite distribution.

Key words: austenitizing temperature, Q&P steel, microstructure and properties

中图分类号:

TG161

蔡顺达, 辛利峰, 宋利伟, 阮国庆, 孙荣生, 钟莉莉. 奥氏体化温度对1500 MPa冷轧Q&P钢组织性能的影响[J]. 金属热处理, 2025, 50(2): 247-250.

Cai Shunda, Xin Lifeng, Song Liwei, Ruan Guoqing, Sun Rongsheng, Zhong Lili. Effect of austenitizing temperature on microstructure and properties of 1500 MPa cold-rolled Q&P steel[J]. Heat Treatment of Metals, 2025, 50(2): 247-250.

参考文献

[1] Aydin H, Essadiqi E, Jung I H, et al. Development of 3rd generation AHSS with medium Mn content alloying compositions[J]. Materials Science and Engineering A, 2013, 564: 501-508.
[2] Bleck W, Fritz B, Ma Y, et al. Materials and processes for the third-generation advanced high-strength steels[C] //4th European Steel Technology and Application Days. 2019.
[3] Branagan D J. Designing third generation advanced high-strength steel for demanding automotive applications[J]. Advanced Materials and Processes, 2016, 174: 22-24.
[4] Tan X D, Xu Y B, Yang X L, et al. Microstructure-properties relationship in a one-step quenched and partitioned steel[J]. Materials Science and Engineering A, 2014, 589: 101-111.
[5] Tomota Y, Tokuda H, Adachi Y, et al. Tensile behavior of TRIP-aided multi-phase steels studied by in situ neutron diffraction[J]. Acta Materialia, 2004, 52(20): 5737-5745.
[6] Santofimia M J, Zhao L, Petrov R, et al. Characterization of the microstructure obtained by the quenching and partitioning process in a low-carbon steel[J]. Materials Characterization, 2008, 59(12): 1758-1764.
[7] 陈连生, 张健杨, 田亚强, 等. 预先Mn配分处理对Q&P钢中C配分及残余奥氏体的影响[J]. 金属学报, 2015, 51(5): 527-536.
Chen Liansheng, Zhang Jianyang, Tian Yaqiang, et al. Effect of Mn pre-partitioning on C partitioning and retained austenite of Q&P steels[J]. Acta Metallurgica Sinica, 2015, 51(5): 527-536.
[8] 高学然, 陈晓虎, 原思宇, 等. 汽车用Q&P钢的研究进展[J]. 金属热处理, 2023, 48(7): 245-253.
Gao Xueran, Chen Xiaohu, Yuan Siyu, et al. Research progress of Q&P steel for automobiles[J]. Heat Treatment of Metals, 2023, 48(7): 245-253.
[9] 庄宝潼, 唐荻, 江海涛, 等. 汽车用高强度Q&P钢的组织与力学性能[J]. 北京科技大学学报, 2012, 34(4): 390-396.
Zhuang Baotong, Tang Di, Jiang Haitao, et al. Microstructure and mechanical properties of high strength Q&P steel for automobiles[J]. Journal of University of Science and Technology Beijing, 2012, 34(4): 390-396.
[10] Huang M, Pineau A, Bouaziz O, et al. Recrystallization induced plasticity in austenite and ferrite[J]. Materials Science and Engineering A, 2012, 541: 196-198.
[11] Huang M, Bouaziz O, Zwaag S. Modelling the strongest grain size in nanocrystalline FCC metals[J]. Materials Letters, 2011, 65(19/20): 3128-3130.
[12] Zhu R, Li S, Karaman I, et al. Multi-phase microstructure design of a low-alloy TRIP-assisted steel through a combined computational and experimental methodology[J]. ActaMaterialia, 2012, 60(6/7): 3022-3033.
[13] Xiong X C, Chen B, Huang M X, et al. The effect of morphology on the stability of retained austenite in a quenched and partitioned steel[J]. Scripta Materialia, 2013, 68(5): 321-324.

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奥氏体化温度对1500 MPa冷轧Q&P钢组织性能的影响

Effect of austenitizing temperature on microstructure and properties of 1500 MPa cold-rolled Q&P steel

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