板条马氏体拉伸塑性行为的原位分析
收稿日期: 2020-07-22
修回日期: 2020-10-27
网络出版日期: 2020-11-16
基金资助
国家重点基础研究发展计划项目(2010CB630802);国家自然科学基金项目(51201093);湖北省技术创新专项(重大项目)(2017AAA113)
In Situ Analysis of Plastic Deformation of Lath Martensite During Tensile Process
Received date: 2020-07-22
Revised date: 2020-10-27
Online published: 2020-11-16
Supported by
National Basic Research Program of China(2010CB630802);National Natural Science Foundation of China(51201093);Hubei Technology Innovation Project(2017AAA113)
石增敏 , 梁静宇 , 李箭 , 王毛球 , 方子帆 . 板条马氏体拉伸塑性行为的原位分析[J]. 金属学报, 2021 , 57(5) : 595 -604 . DOI: 10.11900/0412.1961.2020.00275
Lath martensitic steels are widely used in high strength structural materials. Coherency strains in quenched lath martensite induce huge dislocation densities, which are the sources of the alloys' strength, whereas the way its microstructure functions is still unclear. The plastic deformation behavior of lath martensite in ultrahigh strength steel was investigated using in situ neutron diffraction technology. Diffraction data were analyzed using the Z-Rietveld and convolutional multiple whole profile (CMWP) fitting procedures. Transformation dislocations in the as-quenched martensite were mixed with edge and screw components and showed characteristics of random distribution. Significant work hardening of lath martensite can be better understood by considering the increase in dislocation density along with changes in dislocation arrangement. With increased tensile strain, the total dislocation density increased with the increasing amount of edge-type components and the decreasing amount of screw-type components. The hard orientation packets showed characteristics of work hardening with an increased dislocation density, whereas the soft orientation packets showed characteristics of work softening with a decreased dislocation density. The partitioning of the applied load was carried out within two types of packets, which further promoted the formation of long-range internal stresses after deformation.
| 1 | Morito S, Nishikawa J, Maki T. Dislocation density within lath martensite in Fe-C and Fe-Ni alloys [J]. ISIJ Int., 2003, 43: 1475 |
| 2 | Shi Z M, Gong W, Tomota Y, et al. Study of tempering behavior of lath martensite using in situ neutron diffraction [J]. Mater. Charact., 2015, 107: 29 |
| 3 | Krauss G. Martensite in steel: Strength and structure [J]. Mater. Sci. Eng., 1999, A273-275: 40 |
| 4 | Morito S, Tanaka H, Konishi R, et al. The morphology and crystallography of lath martensite in Fe-C alloys [J]. Acta Mater., 2003, 51: 1789 |
| 5 | Morito S, Huang X, Furuhara T, et al. The morphology and crystallography of lath martensite in alloy steels [J]. Acta Mater., 2006, 54: 5323 |
| 6 | Krauss G. Steels: Heat Treatment and Processing Principles [M]. 2nd Ed., Materials Park, OH: ASM International, 1990: 149 |
| 7 | Wang C F, Wang M Q, Shi J, et al. Effect of microstructural refinement on the toughness of low carbon martensitic steel [J]. Scr. Mater., 2008, 58: 492 |
| 8 | Morito S, Yoshida H, Maki T, et al. Effect of block size on the strength of lath martensite in low carbon steels [J]. Mater. Sci. Eng., 2006, A438-440: 237 |
| 9 | Shi Z M, Liu K, Wang M Q, et al. Effect of tensile deformation of austenite on the morphology and strength of lath martensite [J]. Met. Mater. Int., 2012, 18: 317 |
| 10 | Wang C F, Wang M Q, Dong H. In-situ observation of deformation and fracture process for lath martensite steel [J]. J. Iron Steel Res., 2012, 24(3): 38 |
| 10 | 王春芳, 王毛球, 董 瀚. 板条马氏体钢变形与断裂过程的原位观察 [J]. 钢铁研究学报, 2012, 24(3): 38 |
| 11 | Chen P, Wang G D, Ceguerra A V, et al. Yield strength enhancement by carbon trapping in ferrite of the quenching and partitioning steel [J]. Metall. Mater. Trans., 2018, 49A: 235 |
| 12 | Morooka S, Tomota Y, Kamiyama T. Heterogeneous deformation behavior studied by in situ neutron diffraction during tensile deformation for ferrite, martensite and pearlite steels [J]. ISIJ Int., 2008, 48: 525 |
| 13 | Wang Y, Zhang K, Guo Z H, et al. A new effect of retained austenite on ductility enhancement of low carbon Q-P-T steel [J]. Acta Metall. Sin., 2012, 48: 641 |
| 13 | 王 颖, 张 柯, 郭正洪等. 残余奥氏体增强低碳Q-P-T钢塑性的新效应 [J]. 金属学报, 2012, 48: 641 |
| 14 | Zhang K, Liu P, Li W, et al. High strength-ductility Nb-microalloyed low martensitic carbon steel: Novel process and mechanism [J]. Acta Metall. Sin. (Engl. Lett.), 2015, 28: 1264 |
| 15 | Tomota Y, Luká? P, Neov D, et al. In situ neutron diffraction during tensile deformation of a ferrite-cementite steel [J]. Acta Mater., 2003, 51: 805 |
| 16 | Tomota Y, Xu P G, Oliver E C, et al. In situ neutron diffraction during thermo-mechanically controlled process for low alloy steels [A]. In-Situ Studies with Photons, Neutrons and Electrons Scattering [M]. Berlin: Springer-Verlag, 2010: 17 |
| 17 | Xu P G, Tomota Y, Luká? P, et al. Austenite-to-ferrite transformation in low alloy steels during thermomechanically controlled process studied by in situ neutron diffraction [J]. Mater. Sci. Eng., 2006, A435-436: 46 |
| 18 | Tomota Y, Wang Y X, Ohmura T, et al. In situ neutron diffraction study on ferrite and pearlite transformations for a 1.5Mn-1.5Si-0.2C steel [J]. ISIJ Int., 2018, 58: 2125 |
| 19 | Aranas Jr C, Rodrigue S, Siciliano F, et al. In-situ X-ray diffraction evidence of dynamic transformation of austenite to ferrite during hot compression test in the single austenite phase field [J]. Scr. Mater., 2020, 177: 86 |
| 20 | Ungár T, Gubicza J, Ribárik G, et al. Crystallite size distribution and dislocation structure determined by diffraction profile analysis: Principles and practical application to cubic and hexagonal crystals [J]. J. Appl. Cryst., 2001, 34: 298 |
| 21 | Ribárik G, Gubicza J, Ungár T. Correlation between strength and microstructure of ball-milled Al-Mg alloys determined by X-ray diffraction [J]. Mater. Sci. Eng., 2004, A387-389: 343 |
| 22 | Ungár T, Dragomir I, Révész á, et al. The contrast factors of dislocations in cubic crystals: The dislocation model of strain anisotropy in practice [J]. J. Appl. Cryst., 1999, 32: 992 |
| 23 | Wilkens M. The determination of density and distribution of dislocations in deformed single crystals from broadened X-Ray diffraction profiles [J]. Phys. Stat. Sol., 1970, 2A: 359 |
| 24 | Iakoubovskii K, Mitsuishi K, Furuya K. High-resolution electron microscopy of detonation nanodiamond [J]. Nanotechnology, 2008, 19: 155705 |
| 25 | Harjo S, Kawasaki T, Tomota Y, et al. Work hardening, dislocation structure, and load partitioning in lath martensite determined by in situ neutron diffraction line profile analysis [J]. Metall. Mater. Trans., 2017, 48A: 4080 |
| 26 | Hirsch P B, Howie A, Nicholson R B, et al. Electron Microscopy of Thin Crystals [M]. London: Butterworths, 1965: 462 |
| 27 | Huang X, Morito S, Hansen N, et al. Ultra?ne structure and high strength in cold-rolled martensite [J]. Metall. Mater. Trans., 2012, 43A: 3517 |
| 28 | Zhang K, Liu P, Li W, et al. Ultrahigh strength-ductility steel treated by a novel quenching- partitioning- tempering process [J]. Mater. Sci. Eng., 2014, A619: 205 |
| 29 | He Y H, Rao Q H, Tan Y H. Investigation on the morphology of martensite in carbon steels [J]. J. Cent. South Univ. Technol., 1996, 3: 122 |
| 30 | Jakobsen B, Poulsen H F, Lienert U, et al. Formation and subdivision of deformation structures during plastic deformation [J]. Science, 2006, 312: 889 |
| 31 | Li Y Z, Huang M X. A method to calculate the dislocation density of a TWIP steel based on neutron diffraction and synchrotron X-ray diffraction [J]. Acta Metall. Sin., 2020, 56: 487 |
| 31 | 李亦庄, 黄明欣. 基于中子衍射和同步辐射X射线衍射的TWIP钢位错密度计算方法 [J]. 金属学报, 2020, 56: 487 |
| 32 | Ungár T, Groma I, Wilkens M. Asymmetric X-ray line broadening of plastically deformed crystals. II. Evaluation procedure and application to [001]-Cu crystals [J]. J. Appl. Cryst., 1989, 22: 26 |
| 33 | Ungár T, Harjo S, Kawasaki T, et al. Composite behavior of lath martensite steels induced by plastic strain, a new paradigm for the elastic-plastic response of martensitic steels [J]. Metall. Mater. Trans., 2017, 48A: 159 |
| 34 | Daymond M R, Tomé C N, Bourke M A M. Measured and predicted intergranular strains in textured austenitic steel [J]. Acta Mater., 2000, 48: 553 |
| 35 | Oliver E C, Daymond M R, Withers P J. Interphase and intergranular stress generation in carbon steels [J]. Acta Mater., 2004, 52: 1937 |
| 36 | Muránsky O, ?ittner P, Zrník J, et al. In situ neutron diffraction investigation of the collaborative deformation -transformation mechanism in TRIP-assisted steels at room and elevated temperatures [J]. Acta Mater., 2008, 56: 3367 |
| 37 | Zackay V F, Parker E R, Fahr D, et al. The enhancement of ductility in high-strength steels [J]. ASM Trans. Quart., 1967, 60: 252 |
| 38 | Tomota Y, Tokuda H, Adachi Y, et al. Tensile behavior of TRIP-aided multi-phase steels studied by in situ neutron diffraction [J]. Acta Mater., 2004, 52: 5737 |
| 39 | Mughrabi H. Dislocation wall and cell structures and long-range internal stresses in deformed metal crystals [J]. Acta Metall., 1983, 31: 1367 |
| 40 | Ungár T, Mughrabi H, R?nnpagel D, et al. X-ray line-broadening study of the dislocation cell structure in deformed [001]-orientated copper single crystals [J]. Acta Metall., 1984, 32: 333 |
| 41 | Mine Y, Hirashita K, Takashima H, et al. Micro-tension behaviour of lath martensite structures of carbon steel [J]. Mater. Sci. Eng., 2013, A560: 535 |
| 42 | Ghassemi-Armaki H, Chen P, Bhat S, et al. Microscale-calibrated modeling of the deformation response of low-carbon martensite [J]. Acta Mater., 2013, 61: 3640 |
| 43 | Essmann U, Mughrabi H. Annihilation of dislocations during tensile and cyclic deformation and limits of dislocation densities [J]. Philos. Mag., 1979, 40A: 731 |
| 44 | Taylor G I. The mechanism of plastic deformation of crystals: Part I. -Theoretical [J]. Proc. Roy. Soc., 1934, 45A: 362 |
| 45 | Jakobsen B, Poulsen H F, Lienert U, et al. Direct determination of elastic strains and dislocation densities in individual subgrains in deformation structures [J]. Acta Mater., 2007, 55: 3421 |
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