温轧和临界退火制备超细晶异构双相钢的微观结构及力学性能

doi:10.13251/j.issn.0254-6051.2024.07.009

摘要/Abstract

摘要： 通过制备超细晶异构双相钢大幅度提升了低碳钢的综合力学性能。首先对低碳双相组织进行300 ℃温轧充分细化初始结构,然后通过740 ℃临界退火处理得到具有高马氏体含量(77%,体积分数)的超细晶异构双相组织,其中铁素体和马氏体的平均晶粒尺寸分别为 0.78和0.39 μm。该超细晶异构双相钢具有优异的综合力学性能,屈服和抗拉强度分别为1.26和1.75 GPa,同时可以保持6.2%的均匀延伸率。在拉伸变形过程中超细晶异构双相钢中铁素体和马氏体之间的力学性能差异产生了显著的异变诱导硬化,可以提高整体的加工硬化率,从而提高低碳钢的强度-塑性匹配。

关键词: 低碳钢, 异构材料, 力学性能, 应变硬化, 异变诱导应力

Abstract: Comprehensive mechanical properties of the low-carbon steel were greatly improved by producing the ultra-fine grained heterostructured dual-phase (UFG-HSDP) structure. First, the initial structure of the low carbon dual-phase structure is refined by warm rolling at 300 ℃, and then the ultra-fine grained heterostructured dual-phase steel with high martensite content (volume fraction of77%) is obtained by intercritical annealing at 740 ℃. The average grain size of ferrite and martensite is 0.78 and 0.39 μm, respectively. The UFG-HSDP steel shows excellent comprehensive mechanical properties, with yield and tensile strengths of 1.26 and 1.75 GPa, respectively, while maintaining a uniform elongation of 6.2%. The mechanical incompatibility between ferrite and martensite in the UFG-HSDP steel during tensile deformation results in significant hetero-deformation induced hardening, which enhances the total strain hardening rate and thus improves the strength-ductility match of low-carbon steel.

Key words: low-carbon steel, heterostructured materials, mechanical properties, strain hardening, hetero-deformation induced stress

中图分类号:

TG142.1

颜文超, 高波, 肖礼容, 周浩. 温轧和临界退火制备超细晶异构双相钢的微观结构及力学性能[J]. 金属热处理, 2024, 49(7): 54-62.

Yan Wenchao, Gao Bo, Xiao Lirong, Zhou Hao. Microstructure and mechanical properties of ultrafine grained heterostructured dual-phase steel prepared by warm rolling and intercritical annealing[J]. Heat Treatment of Metals, 2024, 49(7): 54-62.

参考文献

[1]Michiuchi M, Nambu S, Ishimoto Y, et al. Relationship between local deformation behavior and crystallographic features of as-quenched lath martensite during uniaxial tensile deformation[J]. Acta Materialia, 2009, 57(18): 5283-5291.
[2]Park J M, Yang D C, Kim H J, et al. Ultra-strong and strain-hardenable ultrafine-grained medium-entropy alloy via enhanced grain-boundary strengthening[J]. Materials Research Letters, 2021, 9(7): 315-321.
[3]Li H, Gao S, Tomota Y, et al. Mechanical response of dislocation interaction with grain boundary in ultrafine-grained interstitial-free steel[J]. Acta Materialia, 2021, 206: 116621.
[4]Ghosh S, Mula S. Improvement of fracture toughness of Ti+Nb stabilized microalloyed and interstitial free steels processed through single phase regime control multiaxial forging[J]. Materials Science and Engineering A, 2020, 772: 138817.
[5]Ghosh S, Kömi J, Mula S. Flow stress characteristics and design of innovative 3-steps multiphase control thermomechanical processing to produce ultrafine grained bulk steels[J]. Materials and Design, 2020, 186: 108297
[6]Ghosh S, Bibhanshu N, Suwas S, et al. Surface mechanical attrition treatment of additively manufactured 316L stainless steel yields gradient nanostructure with superior strength and ductility[J]. Materials Science and Engineering A, 2021, 820: 141540.
[7]Ghosh S, Mula S. Fracture toughness characteristics of ultrafine grained Nb-Ti stabilized microalloyed and interstitial free steels processed by advanced multiphase control rolling[J]. Materials Characterization, 2020, 159: 110003.
[8]Järvenpää A, Ghosh S, Khosravifard A, et al. A new processing route to develop nano-grained structure of a TRIP-aided austenitic stainless-steel using double reversion fast-heating annealing[J]. Materials Science and Engineering A, 2021, 808: 140917.
[9]Ghosh S, Mula S, Kumar Mondal D. Development of ultrahigh strength cast-grade microalloyed steel by simple innovative heat treatment techniques for industrial applications[J]. Materials Science and Engineering A, 2017, 700: 667-680.
[10]靳东亮, 王高峰, 马喜强, 等. 淬火低合金中碳钢的力学性能[J]. 金属热处理, 2024, 49(2): 172-178.
Jin Dongliang, Wang Gaofeng, Ma Xiqiang, et al. Mechanical properties of quenched low alloy medium-carbon steel[J]. Heat Treatment of Metals, 2024, 49(2): 172-178.
[11]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.
[12]王毅, 韩杰, 刘超, 等. DQ-T工艺对1000 MPa级高强钢组织和性能的影响[J]. 金属热处理, 2023, 48(9): 30-35.
Wang Yi, Han Jie, Liu Chao, et al. Influence of DQ-T process on microstructure and properties of 1000 MPa high strength steel[J]. Heat Treatment of Metals, 2023, 48(9): 30-35.
[13]Wu X, Yang M, Yuan F, et al. Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility[J]. Proceedings of the National Academy of Sciences, 2015, 112(47): 14501-14505.
[14]Huang C, Wang Y, Ma X, et al. Interface affected zone for optimal strength and ductility in heterogeneous laminate[J]. Materials Today, 2018, 21(7): 713-719.
[15]Tan C, Chew Y, Duan R, et al. Additive manufacturing of multi-scale heterostructured high-strength steels[J]. Materials Research Letters, 2021, 9(7): 291-299.
[16]Li J, Wang S, Mao Q, et al. Soft/hard copper/bronze laminates with superior mechanical properties[J]. Materials Science and Engineering A, 2019, 756: 213-218.
[17]Zhu Y, Ameyama K, Anderson P M, et al. Heterostructured materials: Superior properties from hetero-zone interaction[J]. Materials Research Letters, 2021, 9(1): 1-31.
[18]Wu X, Zhu Y. Heterogeneous materials: A new class of materials with unprecedented mechanical properties[J]. Materials Research Letters, 2017, 5(8): 527-532.
[19]Wang Y F, Wang M S, Fang X T, et al. Extra strengthening in a coarse/ultrafine grained laminate: Role of gradient interfaces[J]. International Journal of Plasticity, 2019, 123: 196-207.
[20]Wang Y, Wei Y, Zhao Z, et al. Mechanical response of the constrained nanostructured layer in heterogeneous laminate[J]. Scripta Materialia, 2022, 207: 114310.
[21]Zhu Y, Wu X. Perspective on hetero-deformation induced (HDI) hardening and back stress[J]. Materials Research Letters, 2019, 7(10): 393-398.
[22]Li J, Zhao M, Jin L, et al. Simultaneously improving strength and ductility through laminate structure design in Mg-8.0Gd-3.0Y-0.5Zr alloys[J]. Journal of Materials Science and Technology, 2021, 71: 195-200.
[23]Pierman A P, Bouaziz O, Pardoen T, et al. The influence of microstructure and composition on the plastic behaviour of dual-phase steels[J]. Acta Materialia, 2014, 73: 298-311.
[24]Balbi M, Alvarez-Armas I, Armas A. Effect of holding time at an intercritical temperature on the microstructure and tensile properties of a ferrite-martensite dual phase steel[J]. Materials Science and Engineering A, 2018, 733: 1-8.
[25]Mirzadeh H, Alibeyki M, Najafi M. Unraveling the Initial microstructure effects on mechanical properties and work-hardening capacity of hual-phase steel[J]. Metallurgical and Materials Transactions A, 2017, 48(10): 4565-4573.
[26]Kalashami A G, Kermanpur A, Najafizadeh A, et al. Development of a high strength and ductile Nb-bearing dual phase steel by cold-rolling and intercritical annealing of the ferrite-martensite microstructures[J]. Materials Science and Engineering A, 2016, 658: 355-366.
[27]Alibeyki M, Mirzadeh H, Najafi M. Fine-grained dual phase steel via intercritical annealing of cold-rolled martensite[J]. Vacuum, 2018, 155: 147-152.
[28]Etesami S, Enayati M, Kalashami A G. Austenite formation and mechanical properties of a cold rolled ferrite-martensite structure during intercritical annealing[J]. Materials Science and Engineering A, 2017, 682: 296-303.
[29]Gao B, Chen X, Pan Z, et al. A high-strength heterogeneous structural dual-phase steel[J]. Journal of Materials Science, 2019, 54(19): 12898-12910.
[30]Gao B, Hu R, Pan Z, et al. Strengthening and ductilization of laminate dual-phase steels with high martensite content[J]. Journal of Materials Science and Technology, 2021, 65: 29-37.
[31]Mirzadeh H, Alibeyki M, Najafi M. Unraveling the initial microstructure effects on mechanical properties and work-hardening capacity of eual-phase steel[J]. Metallurgical and Materials Transactions A, 2017, 48: 4565-4573.
[32]Gao B, Lai Q, Cao Y, et al. Ultrastrong low-carbon nanosteel produced by heterostructure and interstitial mediated warm rolling[J]. Science Advances, 2020, 6(39): 8169-8192.
[33]Yang M, Pan Y, Yuan F, et al. Back stress strengthening and strain hardening in gradient structure[J]. Materials Research Letters, 2016, 4(3): 145-151.
[34]Ren J, Li C, Han Y, et al. Effect of initial martensite and tempered carbide on mechanical properties of 3Cr2MnNiMo mold steel[J]. Materials Science and Engineering A, 2021, 812: 141080.
[35]Güral A, Tekeli S, Ando T. Tensile properties of iron-based P/M steels with ferrite+martensite microstructure[J]. Journal of Materials Science, 2006, 41(23): 7894-7901.
[36]Das D, Chattopadhyay P P. Influence of martensite morphology on the work-hardening behavior of high strength ferrite-martensite dual-phase steel[J]. Journal of Materials Science, 2009, 44(11): 2957-2965.
[37]Zhang J, Di H, Deng Y, et al. Effect of martensite morphology and volume fraction on strain hardening and fracture behavior of martensite-ferrite dual phase steel[J]. Materials Science and Engineering A, 2015, 627: 230-240.
[38]Zheng C, Raabe D. Interaction between recrystallization and phase transformation during intercritical annealing in a cold-rolled dual-phase steel: A cellular automaton model[J]. Acta Materialia, 2013, 61(14): 5504-5517.
[39]Etesami S A, Enayati M H, Kalashami A G. Austenite formation and mechanical properties of a cold rolled ferrite-martensite structure during intercritical annealing[J]. Materials Science and Engineering A, 2017, 682: 296-303.
[40]Pan Z, Gao B, Lai Q, et al. Microstructure and mechanical properties of a cold-rolled ultrafine-grained dual-phase steel[J]. Materials, 2018, 11(8): 1399.
[41]Mazaheri Y, Kermanpur A, Najafizadeh A. A novel route for development of ultrahigh strength dual phase steels[J]. Materials Science and Engineering A, 2014, 619: 1-11.
[42]Papa Rao M, Subramanya Sarma V, Sankaran S. Microstructure and mechanical properties of V-Nb, microalloyed ultrafine-grained dual-phase steels processed through severe cold rolling and intercritical annealing[J]. Metallurgical and Materials Transactions A, 2016, 48(3): 1176-1188.
[43]Kitahara H, Ueji R, Tsuji N, et al. Crystallographic features of lath martensite in low-carbon steel[J]. Acta Materialia, 2006, 54(5): 1279-1288.
[44]Lai Q, Bouaziz O, Gouné M, et al. Damage and fracture of dual-phase steels: Influence of martensite volume fraction[J]. Materials Science and Engineering A, 2015, 646: 322-331.
[45]Zheng X, Ghassemi-Armaki H, Srivastava A. Structural and microstructural influence on deformation and fracture of dual-phase steels[J]. Materials Science and Engineering A, 2020, 774: 138924.
[46]Calcagnotto M, Adachi Y, Ponge D, et al. Deformation and fracture mechanisms in fine-and ultrafine-grained ferrite/martensite dual-phase steels and the effect of aging[J]. Acta Materialia, 2011, 59(2): 658-670.
[47]Park K, Nishiyama M, Nakada N, et al. Effect of the martensite distribution on the strain hardening and ductile fracture behaviors in dual-phase steel[J]. Materials Science and Engineering A, 2014, 604: 135-141.
[48]Zhang J, Di H, Deng Y, et al. Effect of martensite morphology and volume fraction on strain hardening and fracture behavior of martensite-ferrite dual phase steel[J]. Materials Science and Engineering A, 2015, 627: 230-240.
[49]Kunio T, Shimizu M, Yamada K, et al. An effect of the second phase morphology on the tensile fracture characteristics of carbon steels[J]. Engineering Fracture Mechanics, 1975, 7(3): 411-417.
[50]Yerra S K, Martin G, Véron M, et al. Ductile fracture initiated by interface nucleation in two-phase elastoplastic systems[J]. Engineering Fracture Mechanics, 2013, 102: 77-100.
[51]Wu X, Yang M, Yuan F, et al. Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility[J]. Applied Physical Sciences, 2015, 112(47): 14501-14505.
[52]Zhu Y, Wu X. Heterostructured materials[J]. Progress in Materials Science, 2023, 131: 101019.
[53]Zhu Y. Introduction to heterostructured materials: A fast emerging field[J]. Metallurgical and Materials Transactions A, 2021, 52(11): 4715-4726.
[54]Zhu Y, Ameyama K, Anderson P M, et al. Heterostructured materials: Superior properties from hetero-zone interaction[J]. Materials Research Letters, 2020, 9(1): 1-31.