Ultrahigh-strength and ductile superlattice alloys with nanoscale disordered interfaces
T. Yang, Y.L. Zhao, W.P. Li, C.Y. Yu, J.H. Luan, D.Y. Lin, L. Fan, Z.B. Jiao, W.H. Liu, X.J. Liu, J.J. Kai, J.C. Huang, C.T. Liu. Science 369, 427-332, 2020.
Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys
T. Yang, Y. L. Zhao, Y. Tong, Z. B. Jiao, J. Wei, J. X. Cai, X. D. Han, D. Chen, A. Hu, J. J. Kai, K. Lu, Y. Liu and C. T. Liu. Science 362, 933-937, 2018.
(Front row, from left) Chair Professor Kai Jijung, Professor Liu Chain-tsuan, Dr Jiao Zengbao, (back row, from left) Dr Zhao Yilu, Dr Yang Tao and Dr Luan Junhua, Senior Research Associate at the Inter-University 3D Atom Probe Tomography Unit.
Science 2020： Discovery of grain-boundary disordered nanolayers in intermetallic alloys
A) Atom maps reconstructed using 3D-APT show the distribution of each element. Iron (Fe), cobalt (Co), and boron (B)are enriched (darker in colour) at the nanolayer, whereas nickel (Ni), aluminum (Al), and titanium (Ti) are depleted (lighter in colour) correspondingly. (B) and (C) also show the same results.
HAADF-STEM image reveals the ultrathin disordered layer at the grain boundaries with a thickness of about 5 nm.
These pictures suggest that the alloy (NDI-SM) has achieved a superior strength-ductility synergy at ambient temperature and extraordinary heat resistance at elevated temperatures.
Spatial morphology and multicomponent nature of the MCINPs.(A) 3D reconstruction map of an APT needle tip confirming the nanocomposited microstructure of the Al7Ti7 alloy. (B) High-resolution atom maps showing the atomistic distribution within the L12 MCINP of the Al7Ti7 alloy. (C) Proximity histogram across the matrix and nanoparticles revealing the multicomponent nature of the MCINPs of the Al7Ti7 alloy. (D) Ordering crystallographic structure and site occupancy of the L12 MCINP by density functional theory (DFT) calculations of the Al7Ti7 alloy.
Exceptional strength-ductility combination achieved in the MCINPS alloys at ambient temperature. (A) Engineering stress-strain curves of the MCINPS alloys compared with the FeCoNi base alloy (12), showing a significant increase of strength without ductility reduction. The Al7Ti7 alloy exhibits ductile dimpled structures without macroscopic necking. (B) Yield strength versus the product of strength and ductility of the MCINPS alloys compared with those of other high-performing materials.
December 4, 2017
The 2017 Workshop on Applications of Atom Probe Tomography (2017三維原子探針應用研討會) co-organized by Prof. C.T. Liu and Dr. Z.B. Jiao was held on December 4-5, 2017 at CityU, Hong Kong. This workshop attacted more than 80 participants from various universities/institutes, such as Institue of Metals Research, Chongqing Univeristy, Central South Univeristy, Nanjing U of Sci & Tech, Shanghai U, HKU, CityU, PolyU, and CAMECA. Thank all participants for making the wordshop a success!
The 14th International Conference on Nanostructured Materials (NANO2018) will be held on June 24-29, 2018 at City University of Hong Kong. Prof. J. Lu is the organizer of the conference.
Probing the future of advanced materials 探索未來的先進材料
A research team led by Professor Jian Lu, Director of CASM has achieved a ground-breaking advancement in materials research by successfully developing the first-ever supra-nano magnesium alloy. The innovation has been published in top academic journal Nature.
A joint work by Prof. CT Liu and NJUST researchers has achieved a breakthrough in the development of next-generation TiAl alloys with light weight and superior creep resistance, which could provide expanded opportunities for aeronautics and aerospace applications. The innovation has been published in Nature Materials.
January 17, 2018
A delegation led by Yafang Han, First Vice President, IUMRS, General Secretary, C-MRS (国际材联第一副主席) visited the APTU.
November 27, 2017
Prof. Liu Zikui, Department of Materials Science and Engineering, The Pennsylvania State University visited the APTU.
November 25, 2017
Dr. Rob Buckingham FREng, Director, Head of RACE UK Atomic Energy Authority Culham Science Centre visited the APTU.
November 05, 2017
A delegation led by Wei Huang, leading party group member and vice minister of Ministry of Science and Technology of China(中國科學技術部黃偉副部長)visited the APTU.
September 26, 2017
A delegation led by Minghong He, deputy director of National Natural Science Foundation of China( 國家自然科學基金委員會何鳴鴻副主任)visited the APTU.
September 25, 2017
Prof. QiKun Xue, vice president of Tsinghua University,
member of Chinese Academy of Sciences (清华大学副校长薛其坤院士) visited the APTU.
September 14, 2017
A delegation led by Charlie Zhang, VP of Industry Development & Strotegy Planning, and Dr. Joe Huang, Director of New Car Design from NEXTEV (蔚来汽车有限公司产业发展副总裁张洋和蔚来汽车设计及供应商开发质量高级总监黄升峤) visited the APTU.
August 25, 2017
Trained students and postdocs in the advanced operation of APT and TEM specimen preparation with FEI-FIB by Haifeng Gao, Application Engineer in FEI.
Jun 7, 2017
A delegation led by Prof. ZHU Lilan, Director of the Selecting Committee of Ho Leung Ho Lee Foundation (何梁何利基金評選委員會朱麗蘭主任) visited the APTU.
Jun 2, 2017
A delegation led by Prof. LIU Congqiang, academician of Chinese Academy of Sciences and Vice President of National Natural Science Foundation of China( 國家自然科學基金委員會劉从強院士) visited the APTU.
May 24, 2017
A delegation led by ZHAO Lingshan, deputy director of Hong Kong, Macao and Taiwan Affairs Office of the Ministry (教育部港澳臺事務辦公室趙靈山副主任) visited the APTU.
April 25-26, 2017
Trained students and postdocs in the Advanced Operation and Application of LEAP 5000R by Dr. Hugues Francois-Saint-Cyr, CAMECA’s Applications Specialist.
Mar 8, 2017
Prof C. T. Liu organized the Workshop on "Structures and Properties of High Entropy Alloy (HEAs)" at CityU, and the participants visited the APTU.
Feb 23, 2017
The 3D APT facility management committee meeting was held at the APTU. Profs. CT Liu, XL Wang, SQ Shi, N Wang, AHW Ngan, MX Huang, Q Li, and ZB Jiao attended the meeting and discussed the management of the APT facility and CRF project.
Jan 13, 2017
Prof. Ned Pankhurst, Senior Deputy Vice Chancellor and Senior Vice, and President of Griffith University, and Prof. Huijun Zhao, Director of Centre For Clean Environment and Energy visited the APTU.
Dec 15, 2016
Prof. LI Yuanyuan, Member of Chinese Academy of Engineering and President of Jilin University (吉林大學校長 李元元院士), and Prof. YU Jihong, Member of Chinese Academy of Sciences (於吉紅院士) visited the APTU.
Jul 13, 2016
The attendees of the Gordon Research Conference on Structural Nanomaterials visited the APTU.
Jun 21, 2016
A delegation led by Prof. YANG Wei, the Director of the National Natural Science Foundation of China (國家自然科學基金委員會主任 楊衛院士) visited the APTU.
Jun 20, 2016
A delegation led by Prof. ZHU Min, the Vice President of South China University of Technology (華南理工大學朱敏副校長) visited the APTU.
May 14, 2016
A delegation led by Prof. JIN Donghai, the President of Shanghai University (上海大學校長 金東寒院士) visited the APTU.
