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徐东生
单位:中国科学院金属研究所
地址:沈阳文化路72号
邮编:110016
电话:86-24-23971946
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实验室介绍: http://imr.cas.cn
 
个人简历 Personal resume
中国科学院金属研究所研究员、博导,高温结构材料计算设计创新方向负责人。兼任中国科学技术大学教授、美国俄亥俄州立大学兼职教授、中国材料研究学会计算材料学分会副主任委员、中国物理学会专业委员等。长期从事钛基合金的多尺度计算模拟研究,针对钛基合金中存在的问题,借助多尺度模拟为合金的设计与优化提供支撑:在电子结构层次上对金属间化合物中合金原子占位、相稳定性、缺陷与合金原子相互作用及其对力学性能的影响等方面进行了深入研究,为新合金的元素选择指明方向;原子层次模拟形变孪晶和位错行为,发现有序相关的孪晶及伪孪晶新机制,阐明位错相互作用及点缺陷的产生、位错偶转变机制及产物对位错运动及疲劳断裂的影响,为力学性能的设计奠定基础;微观组织层次上采用相场动力学方法模拟钛合金中的典型微观组织演化,甄别主要控制因素,为新型钛基材料设计及工艺优化提供重要参考;宏观层次上有限元模拟紧密结合实验研究,为钛合金熔炼、锻造、轧制、挤压、粉末冶金等的工艺优化提供支撑。曾承担973(3项)、自然科学基金(3项)及科学院项目(5项),任“十三五”国家重点研发计划“航空用先进钛基合金集成计算设计与制备”项目负责人。发表论文100余篇,获专利6项;培养研究生30余名。多次组织或参与组织国际会议,30余次在国际会议上作邀请报告。
代表性论文:
1.	Titanium Alloys: From Properties Prediction to Performance Optimization, Dongsheng Xu, Hao Wang, Jinhu Zhang, Chunguang Bai and Rui Yang, in: Wanda Andreoni and Sidney Yip (Ed.), Handbook of Materials Modeling, 2nd Edition, Springer, doi:10.1007/978-3-319-50257-1_116-1. 
2.	Crystal plasticity finite element investigation of the high temperature deformation consistency in dual-phase titanium alloy, X.X. Li, D.S. Xu, R. Yang, Acta Metallurgica Sinica, 55, 928-938, 2019(in Chinese). 
3.	CPFEM study of the high temperature tension behavior in duplex titanium alloy, X.X. Li, D.S. Xu, R. Yang, Chinese J. Mater. Res., 33, 241-253, 2019(in Chinese).
4.	Refining constitutive relation by combination of finite element simulations and Gleeble experiments, D. J. Yu, D. S. Xu, H. Wang, Z. B. Zhao, G. Z. Wei, R. Yang, J. Mater. Sci. Technol. 35, 1039-1043, 2019.
5.	Dislocation dipole-induced strengthening in intermetallic TiAl, He, Y., Z. Liu, G. Zhou, H. Wang, C. G. Bai, D. Rodney, F. Appel, D. S. Xu and R. Yang, Scripta Mater., 143, 98-102, 2018.
6.	Energy paths of twin-related lattice reorientation in hexagonal metals via ab initio calculations, Zhou, G., L. H. Ye, H. Wang, D. S. Xu, C. G. Meng and R. Yang, J. Mater. Sci. Tech., 34, 700-707, 2018.
7.	A First-Principles Study on Basal/Prismatic Reorientation-Induced Twinning Path and Alloying Effect in Hexagonal Metals, Gang Zhou, Lihua Ye, Hao Wang, Dongsheng Xu, Changgong Meng, Rui Yang, Acta Materials Sinica, 54, 603-612, 2018.
8.	ab initio investigation on the slip preference of <a>-dislocations in hexagonal metals and alloys. G. Zhou, Y. J. Li, H. Wang, L. H. Ye, D. S. Xu, C. G. Meng, R. Yang. Computational Materials Science, 139, 209-215, 2017.
9.	Gradient plasticity in gradient nano-grained metals, Zhi Zeng, Xiaoyan Li, Dongsheng Xu, Lei Lu, Huajian Gao, Ting Zhu, Extreme Mechanics Letters, 8, 213, 2016 (cover paper, discussed in Science)
10.	Atomic-scale investigation on the nucleation of twinning-like lattice reorientation in hexagonal close-packed metals. Hao Wang, Gang Zhou, Jianke Qiu, Lihua Ye, Dongsheng Xu, Jiafeng Lei, David Rugg, Aijun Huang, Rui Yang, Proceedings of the 13th World Conference on Titanium,1893, 2016.
11.	Molecular dynamics simulation of tensile deformation and fracture of γ-TiAl with and without surface defects, Wu, H. N., D. S. Xu, H. Wang and R. Yang, J. Mater. Sci. Tech., 32, 1033-1043, 2016.
12.	Extreme-Scale Phase Field Simulations of Coarsening Dynamics on the Sunway TaihuLight Supercomputer, Jian Zhang, Chunbao Zhou, Yangang Wang, Lili Ju, Qiang Du, Xuebin Chi, Dongsheng Xu, Dexun Chen, Yong Liu and Zhao Liu. Proceedings of SC’16, 34-45, IEEE, Salt Lake City, Utah, USA, November 2016.
13.	The influences of dislocations on nucleation and micro-texture formation of α phase in Ti-6Al-4V, Zhang Jinhu, Xu Dongsheng, Wang Yunzhi, Yang Rui, Acta Metallurgica Sinica, 52, 905-914, 2016(in Chinese).
14.	Effect of external stress on gamma nucleation and evolution in TiAl alloys, Teng, C. Y., A. Du, D. S. Xu, Y. Wang and R. Yang, Intermetallics, 65, 1, 2015.
15.	A mean-field interatomic potential for a multi-component β-type titanium alloy, Y. X. Liu, H. Wang, H. N. Wu, D. S. Xu, R. Yang, Computational Materials Science, 95, 414, 2014.
16.	MD simulation of asymmetric nucleation and motion of <011] superdislocations in TiAl,  Dongsheng Xu, Hao Wang, Rui Yang, Anil Sachdev, Chinese Science Bulletin, 59, 1725 2014. 
17.	Atomic modelling of crack initiation on twin boundaries in alpha-titanium under external tensile loading along various orientations, Wang, H., D. S. Xu and R. Yang, Philos. Mag. Lett., 94, 779, 2014.
18.	Defect clustering upon dislocation annihilation in alpha-titanium and alpha-zirconium with hexagonal close-packed structure, Wang, H., D. S. Xu and R. Yang, Model. Simul. Mater. Sci. Eng., 22, 085004, 2014.
19.	Interstitial loop strengthening upon deformation in aluminum via molecular dynamics simulations, H. Wang, D. S. Xu, P. Veyssière, R. Yang, Acta Mater., 61, 3499, 2013.
20.	Atomistic investigation of the annihilation of non-screw dislocation dipoles in Al, Cu, Ni and γ-TiAl, H. Wang, D. S. Xu, D. Rodney, P. Veyssière, R. Yang, Model. Simul. Mater. Sci. Eng., 21, 025002, 2013.
21.	Defect kinetics on experimental timescales using atomistic simulations, H. Wang, D. Rodney, D. S. Xu, R. Yang, P. Veyssière, Philos. Mag.,93, 186, 2013.
22.	Phase-field simulation of twin boundary fractions in fully lamellar TiAl alloys. Teng, C.Y., Zhou, N., Wang, Y., Xu, D. S., Du, A., Wen, Y. H., Yang, R., Acta Mater., 60, 6372, 2012.
23.	Pentavacancy as the key nucleus for vacancy clustering in aluminum, H. Wang, D. Rodney, D. Xu, R. Yang and P. Veyssière, Phys. Rev. B 84, 220103, 2011.
24.	The formation of stacking fault tetrahedra in Al and Cu: I. Dipole annihilation and the nucleation stage, H. Wang, D.S. Xu, R. Yang, P. Veyssière, Acta Mater. 59, 1, 2011.
25.	The formation of stacking fault tetrahedra in Al and Cu: II. SFT growth by successive absorption of vacancies generated by dipole annihilation, H. Wang, D.S. Xu, R. Yang, P. Veyssière, Acta Mater. 59, 10, 2011.
26.	The formation of stacking fault tetrahedra in Al and Cu: III. Growth by expanding ledges, H. Wang, D.S. Xu, R. Yang, P. Veyssière, Acta Mater. 59, 19, 2011.
27.	Lattice weakening by edge dislocation core under tension, X.Y. Gu, D.S. Xu, H Wang, R Yang, Model. Simul. Mater. Sci. Eng. 18, 065004, 2010.
28.	The transformation of narrow dislocation dipoles in selected fcc metals and in γ-TiAl, H. Wang, D.S. Xu, R. Yang, P. Veyssière, Acta Mater. 57, 3725, 2009.
29.	Simulation study of effects of initial particle size distribution on dissolution, G. Wang, D.S. Xu, N. Ma, N. Zhou, E.J. Payton, R. Yang, M.J. Mills, Y. Wang. Acta Mater. 57, 316, 2009.
30.	Point Defects Formation by Dislocation Reactions in TiAl, D.S. Xu, H. Wang, R. Yang and P. Veyssière, IOP Conf. Series: Mat. Sci. Eng. 3, 012024, 2009.
31.	Self-organization in fcc metals deformed in single slip: local dislocation man&#339;uvres, P. Veyssière, H. Wang, D. S. Xu, Y. L. Chiu, IOP Conf. Ser.: Mater. Sci. Eng. 3, 012018, 2009.
32.	Molecular dynamics investigation of deformation twinning in γ-TiAl sheared along the pseudo-twinning direction, D.S. Xu, H. Wang, R. Yang, P. Veyssière, Acta Mater. 56, 1065, 2008. 
33.	The transformation of edge dislocation dipoles in Aluminum. H. Wang, D.S. Xu, R. Yang, P. Veyssière, Acta Mater. 56, 4608, 2008. 
34.	Deformation in TiAl by the formation of L11 pseudotwin, D. S. Xu, H. Wang, Y. J. Li and R. Yang, Structural Aluminides for Elevated Temperatures, 119-124, 2008.
35.	Point defects and their interaction in TiNi from frist-principles calculations, J.M. Lu, Q.M. Hu, L. Wang, Y.J. Li, D.S. Xu and R. Yang, Phys. Rev. B 75, 094108, 2007.
36.	Thermal conductivity of ultrathin carbon nanotube with an X-shaped junction, F. Y. Meng, S. Ogata, D. S. Xu, and S. Q. Shi. Phys. Rev. B 75, 205403, 2007.
37.	Atomistic simulation of the influence of pressure on dislocation nucleation in bcc Mo, D. S. Xu, R. Yang, J. Li, J. P. Chang, H. Wang, D. Li, S. Yip, Comp. Mater. Sci. 36, 60, 2006.
38.	Point defects and mechanical behavior of titanium alloys and intermetallic compounds, D. S. Xu, Q. M. Hu, J. M. Lu, Y. L. Hao and R. Yang, S. E. Kulkova, D. I. Bazhanov, J. Phys.: Conf. Ser. 29, 220, 2006.
39.	Mechanical properties of ultrathin carbon nanotube junctions, F. Y. Meng, S. Q. Shi, D. S. Xu, and C. T. Chan, Modelling Simul. Mater. Sci. Eng., 14, S1-S8, 2006.
40.	Size effect of X-shaped carbon nanotube junctions, F. Y. Meng, S. Q. Shi, D. S. Xu, and R. Yang, Carbon, 44, 1263-1266, 2006.
41.	Surface reconstructions and stability of X-shaped carbon nanotube junction, F.Y. Meng, S.Q. Shi, D.S. Xu, and C.T. Chan, J. Chem. Phys., 124, 024711, 2006
42.	Concentrated point defects in and order-disorder transition temperature of intermetallic compounds, Q. M. Hu, R. Yang, Y. L. Hao, D. S. Xu, and D. Li, Phys. Rev. Lett., 92, 185505, 2004.
43.	Dislocation slip or deformation twinning: confining pressure makes a difference, D. S. Xu, J. P. Chang, J. Li, R. Yang, D. Li and S. Yip, Mater. Sci. Eng. A387, 840, 2004.
44.	Multi-terminal junctions formed by heating ultra-thin single-walled carbon nanotubes, F. Y. Meng, S. Q. Shi, D. S. Xu, and R. Yang, Phys. Rev. B70, 125418, 2004.
45.	Selection of Can and Insulating Materials for Controlled-dwell Extrusion of Gamma-TiAl, C. G. Bai, D. Liu, D. S. Xu, Y. Y. Cui, Y. L. Hao, and R. Yang, Mater. Sci. Forum, 475, 789, 2004.
46.	First principles investigations of ordering in α-Ti solid solution, Q. M. Hu, D. S. Xu, R. Yang and D. Li, Philos. Mag. A 83, 217, 2003
47.	Geometric and electronic structure of Ti2AlX (X=V, Nb, Ta), Q.M. Hu, R. Yang, D.S. Xu, Y.L. Hao, D. Li, and W.T. Wu, Phys. Rev. B 68, 054102, 2003
48.	Energetics and electronic structure of grain boundaries and surface of B- and H-doped Ni3Al, Q. M. Hu, R. Yang, D. S. Xu, Y. L. Hao, D. Li, and W. T. Wu, Phys. Rev B67, 224203, 2003
49.	First-principles investigation of solute-hydrogen interaction in α-Ti solid solution, Q. M. Hu, D. S. Xu, R. Yang, D. Li, Phys. Rev. B66, 64201, 2002
50.	First-principles investigations of the solute-vacancy interaction energy and its effect on the creep properties of alpha-titanium, Q. M. Hu, D. S. Xu, D. Li, Philos. Mag. A 81, 2809, 2001 
51.	Theoretical study of strength and modulus of some &#61538;–type alloys using the discrete variational cluster method, Y. Song, D. S. Xu, R. Yang, D. LI, W. T. Wu, Z. X. Guo, Mater. Sci. Eng., A260, 169, 1999
52.	The site occupancies of alloying elements in TiAl and Ti3Al alloys, Y. L. Hao, D. S. Xu, Y. Y. Cui, et al, Acta Mater., 47,1129, 1999
53.	Theoretical investigation of ductilizing effects of alloying elements on TiAl, Y. Song, D. S. Xu, R. Yang, D. Li, Z. Q. Hu, Intermetallics, 6, 157, 1998
54.	Site occupancy of alloying elements in TiNi compounds, D. S. Xu, Y. Song, D. Li, Z. Q. Hu, Philos. Mag. A75, 1185, 1997.
55.	Site occupancy of alloying elements in Ti3Al compounds, D. S. Xu, Y. Song, D. Li, Z. Q. Hu, Mater. Sci. Eng. A234, 230, 1997.
 
研究方向 Research direction
1、钛合金变形织构演化模拟
2、钛基合金形变及断裂微观机制模拟
3、钛合金成形工艺优化
 
招生信息 Enrollment information
研究组有较好的研究基础和计算模拟的软硬件条件,研究部有国际水平的钛合金熔炼、热加工及部分分析手段。欢迎有志于钛合金结构材料计算设计,有较好的材料科学及数理基础的学生报考。具体考试科目见招生简章,也可发e-mail: dsxu@imr.ac.cn。
 
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