于开元，男，山东威海人，1983年生，教授，博士生导师。
1.基本简历
2002.09-2006.07 北京航空航天大学 材料科学与工程本科
2006.07-2009.02 北京航空航天大学 材料科学与工程硕士
2009.08-2013.05 Texas A&M University材料学博士
2013.05-2014.06 Texas A&M University 讲师、博士后
2014.07- yh86银河国际（北京）新能源与材料学院教师
2.招生学科和研究方向
招生学科：材料科学与工程 （博士生、学术型硕士生、专业型硕士生）。
研究方向：纳米金属材料固态相变与力学行为，形状记忆合金相变与功能特性，纳米金属薄膜力学行为等（详见代表性成果）。
招生意向：欢迎金属材料背景同学报考，有金属材料力学、相变行为方面相关科研经验者优先。
3.主讲课程
《材料科学基础I》《材料科学基础II》（本科生）
4.在研主要项目
【1】国家自然科学基金面上项目(2024-2027)，负责
5.完成主要项目
【1】国家自然科学基金重大研究计划培育项目(2020-2022)，负责
【2】国家自然科学基金面上项目(2019-2022)，负责
【3】国家自然科学基金青年科学基金项目(2015-2018) ，负责
【4】国家自然科学基金重点项目(2017-2021)，参与
6.代表性成果
60+ peer-reviewed papers; total citation (per google scholar): ~ 2600; h-index: 26 (as of Sep. 2023)
【1】 T. Wang, X. Rao, Q. Zhang, D. Jiang, Y. Ren, L. Cui*, Kaiyuan Yu*, "Negative temperature dependence of stress-induced R-B19' transformation in nanocrystalline NiTi", Materials Research Letters, (2022) 11:4.
【2】H. Zhang, Jinyi Liu, Zhiyuan Ma, Yang Ren, Daqiang Jiang, Lishan Cui*, Kaiyuan Yu*, "Small stress-hysteresis in a nanocrystalline TiNiCuFe alloy for elastocaloric applications over wide temperature window", Journal of Alloys and Compounds, (2022)928:167195
【3】 Heng Li, Hongxiang Zong, Suzhi Li, Shenbao Jin, Yan Chen, Matthew J. Cabral, Bing Chen…Kaiyuan Yu… et al. "Uniting tensile ductility with ultrahigh strength via composition undulation." Nature 604, no. 7905 (2022): 273-279.
【4】 Yuxuan Chen, Ang Li, Xiangguang Kong, Zhiyuan Ma, Genfa Kang, Daqiang Jiang, Kun Zhao, Yang Ren, Lishan Cui, and Kaiyuan Yu*. "Revealing the mode and strain of reversible twinning in B19′ martensite by in situ synchrotron X-ray diffraction." Acta Materialia 236 (2022): 118131.
【5】 Xiangxiang Rao, Yadong Ru, Fangmin Guo, Yang Ren, Lishan Cui, and Kaiyuan Yu*. "Abnormal strain evolution of austenite upon martensitic transformation in FeNiCo alloy with invar effect: An in situ study." Scripta Materialia 220 (2022): 114942.
【6】 Kang, Genfa, Hui Zhang, Zhiyuan Ma, Yang Ren, Lishan Cui, and Kaiyuan Yu*. "Large thermal hysteresis in a single-phase NiTiNb shape memory alloy." Scripta Materialia 212 (2022): 114574.
【7】 Zhang, Hui, Jinyi Liu, Zhiyuan Ma, Yang Ren, Daqiang Jiang, Lishan Cui, and Kaiyuan Yu*. "Small stress-hysteresis in a nanocrystalline TiNiCuFe alloy for elastocaloric applications over wide temperature window." Journal of Alloys and Compounds 928 (2022): 167195.
【8】 Zhang, G., T. Wang, Z. Ma, H. Zhou, L. Cui, and K. Y. Yu*. "Comparison of cracking behavior of nanocrystalline Cu film on substrates of different plastic deformation mechanisms." Materials Today Communications 31 (2022): 103289.
【9】Tao, Xuefei, Yang Yang, Hongxiang Zong, Xiangdong Ding, Kaiyuan Yu, Turab Lookman, and Jun Sun. "Molecular dynamics simulations of ultralow hysteretic behavior in super-elastic shape memory alloys." Acta Materialia 232 (2022): 117973.
【10】 Y. Chen , A. Li, Z. Ma, T. Wang, Y. Liu, K.Y. Yu, F. Yang, D. Jiang, K. Zhao, H. Yang, Y. Ren, L. Cui*, "Step-wise R phase transformation rendering high-stability two-way shape memory effect of a NiTiFe-Nb nanowire composite", Acta Materialia, 219 (2021) 117258.
【11】X. Hu, Y. Liu., F. Guo, K.Y.Yu*, D. Jiang, Y. Ren, H. Yang, L. Cui, "Enhanced superelasticity of nanocrystalline NiTi/NiTiNbFe laminar composite", Journal of Alloys and Compounds, 853 (2020) 157309.
【12】T. Wang, Z. Ma, X. Rao, D. Jiang, Y. Ren, Y. Liu, K. Y. Yu* and L. Cui. "Temperature-dependence of superelastic stress in nanocrystalline NiTi with complete transformation capability", Intermetallics 127,(2020) 106970.
【13】 X. Fang, Q.Q. Xue, K. Y. Yu*, R. Li, D.Q. Jiang, L. Ge, Y. Ren, C. Chen, X.L. Wu*," Superior strength-ductility synergy by hetero-structuring high manganese steel", Materials Research Letters (2020) 8:11, 417-423
【14】 K. Y. Yu*, C. Fan, Y. Chen, J. Li, X. Zhang, REVIEW ARTICLE "Recent Studies on the Microstructural Response of Nanotwinned Metals to In Situ Heavy Ion Irradiation", JOM (2020) 72: 160.
【15】Y. Ru, K.Y. Yu*, S.Dai, F.Guo, S.Hao, Y. Ren, L Cui*, “Lüders-like martensitic transformation in a Cu/carbon-steel nanocomposite: an in situ synchrotron study”, Journal of Alloys and Compounds , 741 (2018): 693-699.
【16】Chen, Z., Z. Ma, K. Y. Yu*, T. Wang, E. G. Fu, G. Zhang, and L. Cui. "Strengthening mechanisms in NiTi (NbFe)/amorphous-CuZrAl multilayered thin films." Surface and Coatings Technology 353 (2018): 247-253.
【17】Ru, Yadong, K.Y. Yu*, Fangmin Guo, Yang Ren, and Lishan Cui*. "Conductive nanolamellar Cu/martensite wire with high strength." Materials Letters 229 (2018): 344-347.
【18】Ru, Y., K. Y. Yu*, F. Guo, Y. Ren, L. Cui*. "Temperature-dependent plastic deformation mechanisms of a Cu/steel transforming nanolamellar composite." Materials Science and Engineering: A 734 (2018): 77-84.
【19】X. Zhang, K.Hattar, M. Teheri, M. Nastasi, Y. Chen,C. Sun, J. Li, N. Li, K.Y. Yu, et al . “Radiation damage in nanostructured materials”, Progress in Materials Science , 96 ( 2018) 217-321.
【20】 K.Y. Yu*, Youxing Chen, Jin Li, Yue Liu, Haiyan Wang, Marquis A. Kirk, Meimei Li, and Xinghang Zhang. "Measurement of heavy ion irradiation induced in-plane strain in patterned face-centered-cubic metal films: an in situ study." Nano Letters 16. 12 (2016): 7481-7489.
【21】J. Li?, K.Y. Yu?, Y. Chen, M. Song, H. Wang, M.A. Kirk, M. Li, X. Zhang, “In situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals”, Nano Letters , 15( 2015)5, 2922–2927.
【22】K.Y. Yu, D. Bufford, C. Sun, Y. Liu, H. Wang, M.A. Kirk, M. Li, X. Zhang, "Removal of stacking-fault tetrahedra by twin boundaries in nanotwinned metals", Nature Communications , 4, 1377 (2013).
【23】K.Y. Yu*, Z. Fan, Y. Chen, M. Song, Y. Liu, H. Wang, M.A. Kirk, M. Li, X. Zhang, “ In situ Observation of Defect Annihilation in Kr Ion Irradiated Bulk Fe/Amorphous-Fe2Zr Nanocomposite Alloy”, Materials Research Letters , 4, (2015).
【24】Y. Chen, K.Y. Yu, Y. Liu, S. Shao, H. Wang, M.A. Kirk, J. Wang, X. Zhang, “Damage-tolerant nanotwinned metals with nanovoids under radiation environments”, Nature Communications , 6 (2015) 7036.
【25】K.Y. Yu*, D. Bufford, Y. Liu, H. Wang, X. Zhang, " Basic criteria for formation of growth twins in high stacking fault energy metals", Applied Physics Letters ,103, 181903 (2013).
【26】K.Y. Yu, Y. Liu, E. Fu, Y. Wang, M. Myers, H. Wang, L. Shao, X. Zhang, "Comparisons of radiation damage in He ion and proton irradiated immiscible Ag/Ni nanolayers ", Journal of Nuclear Materials , 440 (2013) 310–318.
【27】K.Y. Yu, Y. Liu, C. Sun, H. Wang, L. Shao, E.G. Fu, X. Zhang, "Radiation damage in helium ion irradiated nanocrystalline Fe", Journal of Nuclear Materials , 425 (2012) 140-146.
【28】K.Y. Yu, D. Bufford, F. Khatkhatay, H. Wang, M.A. Kirk, X. Zhang, "In situ studies of irradiation induced twin boundary migration in nanotwinned Ag", Scripta Materialia , 69, (2013) 385-388.
【29】 K.Y. Yu, Y. Liu, S. Rios, H. Wang, X. Zhang, "Strengthening mechanisms of immiscible Ag/Ni multilayers with fcc/fcc interface", Surface & Coatings Technology , 237 (2013) 269-275
【30】K.Y. Yu, Y. Liu, Y. Chen, C. Sun, H. Wang, M.A. Kirk, M. Li, X. Zhang, "Superior tolerance of Ag/Ni multilayers against Kr ion irradiation: an in situ study", Philosophical Magazine , 93, 3547-3562, (2013).
7.人才培养与就业
已毕业博士研究生7人(中科院、浪潮、陕西理工、中芯国际、比亚迪等)，硕士研究生15人（拾音汽车、达能环保、长江存储、北京奔驰、招行、丰台税务等）。
8.联系方式
Email：kyyu@cup.edu.cn；办公电话：010-8973-9243
