一种新型高淬透性Ni-Cr-Mo-B钢的热变形本构分析
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摘要
基于Gleeble单道次热压缩实验并结合OM表征手段及回归方法,研究了一种新型高淬透性Ni-Cr-Mo-B特厚板钢在850～1 150℃和0. 01～10 s-1热变形参数下的热变形行为。结果表明,Ni-Cr-Mo-B钢在热变形过程中流变应力随变形温度的升高而减小,随应变速率的增加而增大。建立的典型应变补偿Arrhenius型本构方程可用于粗略预测Ni-Cr-Mo-B钢的流变行为。考虑到应变速率、变形热对变形过程的影响,提出修正应变补偿Arrhenius型本构方程,其统计学参量Rc=0. 994 68、AARE=3. 69%、RMSE=6. 44 MPa、NMBE=1. 25%,相对误差大部分(94. 87%)在±10%之内,表明该方程具有极高的流变应力预测精度。
Hot deformation behavior of a novel Ni-Cr-Mo-B ultra-heavy plate steel with high hardenability at 850-1 150 ℃ and the strain rates of 0. 01 to10 s-1 was studied by means of single pass Gleeble hot compression tests,optical microscopy and regression method. The results revealed that the rheological stress of Ni-Cr-Mo-B steel decreased with the increasing deformation temperature and increased with the rising strain rate during hot compression. The classic strain-compensation Arrhenius-type constitutive equation established in this study could roughly predict the rheological behavior of Ni-Cr-Mo-B steel. Furthermore,a revised strain-compensation Arrhenius-type constitutive equation was proposed by taking the influence of strain rate and deformation heat on the deformation process into consideration. The statistical parameters of the revised equation were as follow,Rc= 0. 994 68,AARE = 3. 69%,RMSE = 6. 44 MPa,NMBE = 1. 25%,-10% ≤δ≤10%,which means that the revised equation could predict the rheological stress more accurately.
Hot deformation behavior of a novel Ni-Cr-Mo-B ultra-heavy plate steel with high hardenability at 850-1 150 ℃ and the strain rates of 0. 01 to10 s-1 was studied by means of single pass Gleeble hot compression tests,optical microscopy and regression method. The results revealed that the rheological stress of Ni-Cr-Mo-B steel decreased with the increasing deformation temperature and increased with the rising strain rate during hot compression. The classic strain-compensation Arrhenius-type constitutive equation established in this study could roughly predict the rheological behavior of Ni-Cr-Mo-B steel. Furthermore,a revised strain-compensation Arrhenius-type constitutive equation was proposed by taking the influence of strain rate and deformation heat on the deformation process into consideration. The statistical parameters of the revised equation were as follow,Rc= 0. 994 68,AARE = 3. 69%,RMSE = 6. 44 MPa,NMBE = 1. 25%,-10% ≤δ≤10%,which means that the revised equation could predict the rheological stress more accurately.
引文
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7 Gao Z Y,Pan T,Wang Z,et al.Journal of Iron and Steel Research,International,2015,22(9),818.
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9 Mirzadeh H,Cabrera J M,Najafizadeh A.Acta Materialia,2011,59(16),6441.
10 Sabokpa O,Zarei-Hanzaki A,Abedi H R,et al.Materials&Design,2012,39,390.
11 Gong Q J,Liang Y L,Yang M,et al.Iron and Steel,2017,52(7),76(in Chinese).龚乾江,梁益龙,杨明,等.钢铁,2017,52(7),76.
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13 Mandal S,Sivaprasad P V,Venugopal S,et al.Applied Soft Computing,2009,9(1),237.
14 Zener C,Hollomon J H.Journal of Applied Physics,1944,15(1),22.
15 Luo R,Cheng X N,Zheng Y,et al.Materials Review B:Research Papers,2017,31(9),136(in Chinese).罗锐,程晓农,郑琦,等.材料导报:研究篇,2017,31(9),136.
16 Sun Q,Chen L.Materials Review B:Research Papers,2017,31(11),90(in Chinese).孙倩,陈冷.材料导报:研究篇,2017,31(11),90.
17 Li H Y,Li Y H,Wang X F,et al.Materials&Design,2013,49,493.
18 Sellars C M,Mctegart W J.Acta Metallurgica,1966,14(9),1136.
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20 Mirzadeh H,Najafizadeh A,Moazeny M.Metallurgical and Materials Transactions A,2009,40(12),2950.
21 Xiao X,Liu G Q,Hu B F,et al.Computational Materials Science,2012,62,227.
22 Mcqueen H J,Yue S,Ryan N D,et al.Journal of Materials Processing Technology,1995,53(1-2),293.
23 Zhao Z Y,Sun M Y,Sun J L.Materials Review B:Research Papers,2017,31(4),149(in Chinese).赵正阳,孙明月,孙建亮.材料导报:研究篇,2017,31(4),149.
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25 Liu J W,Zhao Z,Lu S.Catalysis Today,DOI:10.1016/j.msea.2017.12.028.
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27 Ji G L,Li L,Qin F L,et al.Journal of Alloys and Compounds,2017,695,2389.
28 Cai J,Li F G,Liu T Y,et al.Materials&Design,2011,32,1144.
29 Zou D N,Wu K,Han Y,et al.Materials&Design,2013,51,975.
30 Rezaei Ashtiani H,Parsa M H,Bisadi H.Materials Science and Engineering:A,2012,545,61.
31 Peng X N,Guo H Z,Shi Z F,et al.Materials&Design,2013,50,198.
32 Chun M S,Biglou J,Lenard J G,et al.Journal of Materials Processing Technology,1999,86(1-3),245.
33 Ma X,Zeng W D,Tian F,et al.Materials Science and Engineering:A,2012,545,132.
34 Phaniraj M P,Lahiri A K.Journal of Materials Processing Technology,2003,141(2),219.
35 Li H Y,Wei D D,Li Y H,et al.Materials&Design,2012,35,557.
36 Li H Y,Hu J D,Wei D D,et al.Materials&Design,2012,42,192.