吴志刚副教授

教育经历：

博士，西澳大利亚大学，2011

硕士，西安交通大学，2007

学士，长安大学，2004

职业履历：

西澳大利亚大学，机械化工学院，助理教授，2016年6月-2017年8月；

澳大利亚 ALS Global公司，材料工程师，2014年6月-2016年6月；

西安交通大学，材料科学与工程学院，博士后，2011年12月-2014年5月

研究方向：

形状记忆合金：

作为广义智能材料的代表，形状记忆合金因其优异的形状记忆效应和超弹性而广泛地被应用于航天航空、军事、建筑、机器人、医用及生活用品中。NiTi合金由于其优良的力学性能、耐腐蚀性及易于加工性等特点已然成为众多形状记忆合金中最成功的代表。为了满足特殊的应用要求和适应更为苛刻使用环境，我们通过新的合金设计可以开发出更具特色的NiTi合金及其复合材料，例如实现具有四向形状记忆效应和超高强度的形状记忆合金等。具体的研究方向包括梯度NiTi，多孔NiTi，NiTi合金的增材制造（3D打印），纳米晶NiTi合金，NiTi基复合材料，NiTi合金的表面处理等。我们致力于通过合金设计和结构设计，在微观、介观及宏观的多尺度表征，并阐明与宏观性能的内在联系，突破合金本身的性能“极限”，从而获得超常规的功能及力学性能。

磁性相变材料：

磁性相变材料兼备马氏体相变和铁磁性的双重属性，使其能够在磁场的响应下通过相变诱发出多种功能特性，例如磁致应变效应、磁致冷效应及磁阻效应等。磁性相变材料具备很好的环保性和快速场响应等优点，成为新一代的磁驱动器、磁阻及磁制冷冰箱领域研究的热点材料。目前材料的应用瓶颈是较大的脆性和较差的相变疲劳性能，我们通过研制新型的复合磁性相变材料来解决脆性问题，并通过剖析马氏体晶体学和马氏体相变热力学，并以计算模拟来辅助合金设计，包括有限元分析、分子动力学和第一性原理等方法，从而获得优异的合金耐疲劳性能及其他优异物理性能。

招生专业：

材料科学与工程

科研项目情况：

国家自然科学基金青年基金项目，51201124，“准同型相界在铁磁性形状记忆合金中的研究和应用”， 2013。

中国博士后基金项目，2012M521764，“关于磁性形状记忆合金中应变玻璃的研究”，2012。

期刊论文:

1.Z Wu, A Mahmud, J Zhang, Y Liu and H Yang, “Surface oxidation of NiTi during thermal exposure in flowing argon environment”, Materials & Design, 2018, 140, pp 123-133.

2.Q Meng, Z Wu*, R Bakhtiari, B Shariat, H Yang, Y Liu, T Nam, “A unique “fishtail-like” four-way shape memory effect of compositionally graded NiTi”, Scripta Materialia, 2017, 127, pp 84-87.

3.R Bakhtiari, B Shariat, F Motazedian, Z Wu, J Zhang, H Yang and Y Liu, “Complex transformation field created by geometrical gradient design of NiTi shape memory alloy”, Functional Materials Letters, 2017, 10, pp 1740011.

4.A Mahmud, Z Wu*, H Yang and Y Liu, “Effect of cold work and partial annealing on thermomechanical behaviour of Ti-50.5at%Ni”, Shape Memory and Superelasticity, 2017, 3, pp 57-66.

5.Q Meng, Z Wu*, R Bakhtiari, J Zhang, H Yang, Y Liu, “Stress serration and arch-shaped Lüders stress plateau behaviour of Ti-50.8at% Ni wire prepared by selective electrical resistance over-aging”, Smart Materials and Structure, 2016, 25, pp 115035.

6.B Shariat, Q Meng, A Mahmud, Z Wu, R Bakhitiari, J Zhang, F Motazedian, H Yang, G Rio and Y Liu, “Functional graded shape memory alloys: design, fabrication and modelling –an overview”, Materials and Design, 2017, 124, pp 225-237.

7.M Wang, Z Wu, Y Hong, Y Liu, “Growth orientation control of Co nanowires fabricated by electrochemical deposition using porous alumina templates”, Crystal Growth & Design, 2018, 18, pp 479-487.

8.Z Wu, H Li, “Effects of solution treatment on the martensitic transformation behaviours of a Ni43Co7Mn39Sn11 polycrystalline alloy”, International Journal of minerals, metallurgy and materials, 2015, 22 (6), pp 1-7.

9.Z Wu, “Strain glass behaviour of Ni-Co-Mn-Sn ferromagnetic shape memory alloys”, Physica Status Solidi -Rapid Research Letters, 2015, pp 1-4.

10.Z Wu, J Bian, Z Wang, ZY Wu, Y Yang, “Current-voltage characterization of epitaxial grown barium titanate thin films on Si substrate”, Journal of Materials Science: Materials in Electronics, 2015, 26 (11), pp 8315-8318.

11.Z Wu, X Ren, Y Liu, “Martensitic and magnetic transformation behaviour of Ni50Mn38-xIn12Fex polycrystalline alloys”, Materials China, 2013, 32, pp 50-56.

12.Z Liu, G Li, Z Wu, X Ma, Y Liu, G Wu, “Tailoring martensitic transformation and martensite structure of NiMnGa alloy by doping In”, Journal of Alloys and Compounds, 2012, 535, pp 120-123.

13.Z Wu, Z Liu, H Yang, Y Liu, G Wu, “Martensitic phase transformation and magnetic properties of Mn50Ni42-xSn8Cox polycrystalline alloys”, Journal of Physics D: Applied Physics, 2011, 44, pp 385403(1-8).

14.Z Wu, Z Liu, H Yang, Y Liu, G Wu, “Effect of Co addition on martensitic phase transformation and magnetic properties of Mn50Ni40-xIn10Cox polycrystalline alloys”, Intermetallics, 2011, 19, pp 1839-1848.

15.Z Wu*, Z Liu, H Yang, Y Liu, G Wu, “Metamagnetic phase transformation in Mn50Ni37In10Co3 polycrystalline alloy”, Applied Physics Letters, 2011, 98, pp 061904(1-3).

16.Z Wu, Z Liu, H Yang, Y Liu, G Wu, RC Woodward, “Metallurgical origin of the effect of Fe doping on the martensitic and magnetic transformation behaviours of Ni50Mn40-xSn10Fex magnetic shape memory alloys”, Intermetallics, 2011, 19, pp 445-452.  

17.Z Liu, Z Wu, X Ma, W Wang, Y Liu, G Wu, “Large magnetization change and magnetoresistance associated with martensitic transformation in Mn2Ni1.36Sn0.32Co0.32 alloy”, Journal of Applied Physics, 2011, 110, pp 013916(1-4).

18.Z Liu, Z Wu, H Yang, Y Liu, E Liu, X Ma, G Wu, “Martensitic transformation and magnetic properties in ferromagnetic shape memory alloy Ni43Mn46Sn11-xSix”, Intermetallics, 2011, 19, pp 1605-1611.

19.Z Liu, Z Wu, H Yang, Y Liu, E Liu, H Zhang, G Wu, “Thermal and stress-induced martensitic transformations in quaternary Ni50Mn37(In,Sb)13 ferromagnetic shape memory alloys”, Intermetallics, 2010, 18, pp 1690-1694.  

20.L He, Z Wu, F Jiang, J Sun, “Enhanced thermal stability of Zr65Cu17.5Ni10Al7.5 metallic glass at temperature range near glass transition by oxygen impurity”, Journal of Alloys and Compounds, 2008, 456, pp 181-186.