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Plenary lectures

CHINA

Current Situation of Titanium Research, Developments and Applications in China
Hui Chang, Lian Zhou
Institute of Advanced Materials/College of Materials Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu

Hui_ChangHui Chang obtained his BSc from the Department of Materials Science and Engineering, Central South University in 1988 and read for his MSc in Northeast University for Materials Science in 1997. He obtained the PhD in materials science from the Northwestern Polytechnical University and Institut National Polytechnique de Lorraine in 2006 and 2010, respectively. He has been engaged in the research and development on titanium alloys and fabrication technologies for more than 26 years. Now, his mainly interesting is focused on titanium phase transformation kineticsmicrostructure evolutions and low-cost technologies(short-processing). And also, some new manufacture technologies for high-quality and lower cost titanium powder is been under developed by his team. He has authored and coauthored more than 150 peer-reviewed papers and held more than 20 Chinese patents related titanium alloys and manufacture technologies. He is now the vice director college of materials science and engineering in Nanjing Tech University and became an International Organization Committee (IOC) of world conference on titanium since Ti-2015 conference.

cis

New research and development of titanium production and application in the CIS.

Andrey Alexandrov

Interstate Association Titan

Review of the titanium industry in the CIS in research, production and application of titanium over the past four years. Plans and forecasts of development

Andrey Alexandrov has been the General Director of the Interstate Association "Titan" since 2001. After graduating from the Moscow Institute of Steel and Alloys worked as a Researcher at the All-Russian Institute of light alloys (VILS). Later he worked in trading companies specializing in the production and international trade of titanium products. In 1997, he returned to VILS as Head of the Titanium Department. The main scientific works are related to melting of titanium and its alloys, production of alloys with shape memory, development of new equipment, engineering, marketing. Scientific degree is Ph.D Engineering. Have a big international trade experience, management and organizational work in titanium industry. While heading Interstate Association Titan, number of members has increased from 19 to 61. Association has developed into authoritative industry organization with wide business and information contacts in CIS countries and more than 15 countries abroad. Association is full CIS representative in worldwide titanium organizations. Since 2002 he is the editor-in-Chief of the scientific and technical journal «Titanium».

germany

Developments in Titanium Research and Applications in Germany
Carsten Siemers1, Christian Stöcker2
1
Technische Universität Braunschweig, Braunschweig, Germany
2ARCONIC Engineered Structures, TITAL GmbH, Bestwig, Germany

Since the Ti-2015 World Conference on Titanium held in San Diego, USA, research, development and applications of commercially pure titanium, titanium alloys and titanium aluminides have advanced considerably. In this plenary paper, information is provided on important achievements in the German titanium industry, governmental and non-governmental research organisations and universities from the last four years. Research focused on the development of new alloys and the introduction of sophisticated thermo-mechanical processes mainly for the aerospace industry and medical engineering. This includes a high-strength, aluminium- and vanadium-free alloy for osteosynthesis and implant applications, a thermomechanical process route to achieve high fracture toughness in Ti-17 forgings for applications at elevated temperature, the understanding of the β-phase texture development in Ti-6Al-4V during compression in the α+β regimes and a thermo-hydrogen-treatment to achieve fine-grained metastable -alloys with homogeneously distributed -precipitations. In addition, for conventional implant alloys, their native oxide layers have been studied with respect to biologically relevant properties. Titanium additive manufacturing by powder-bed-fusion processes like selective laser melting (SLM), electron beam melting (EBM) or laser metal deposition (LMD) was investigated in many ways, e.g. to enable the manufacturing of larger radial compressor impellers. Here, processes must be strictly shielded to achieve low oxygen contents in the final parts. In addition, in the binary system titanium-lanthanum a phase transformation path was discovered that opens up an alternative to avoid the typical coarse anisotropic microstructures obtained upon additive manufacturing of conventional titanium alloys. New γ-TiAl alloy compositions tailored to electron beam melting have been developed. Metal injection moulding (MIM) and 3D-printing have been used to produce small to medium-size parts mainly for medical applications. To reduce the production costs of conventional titanium alloys and γ-TiAl, advanced processes like investment casting have been improved, and the capacity of titanium investment casting production has been significantly increased in Germany in the last four years. As intermetallic γ-TiAl-based alloys are applied in low pressure turbine blades now, γ-TiAl conversion of reverted parts has been investigated and validated. Parts from induction skull melted revert materials were technically indistinguishable from those being produced from fresh ingots.

Carsten Siemers started his research career on the “Machinability of Titanium Alloys” in Braunschweig in 2000. In 2005, he secured a permanent position as a “Senior Research Scientist” at the University of Technology (TU) Braunschweig.  Currently, he heads the Titanium Research Group of the Institute for Materials at the TU Braunschweig. Research in his group is focussed on the development of advanced Titanium alloys for several fields of applications like the aerospace, the medical and the automotive industries. This includes the identification of alloy compositions and alloy production as well as alloy characterisation and testing in laboratory and industrial scale. In 2012 Carsten Siemers has been elected chairman of the Titanium Technical Experts’ Committee of the German Materials Association (DGM), i.e. a liaison person between Academia and Titanium industry in Germany.

 

JAPAN

Recent Activities of Titanium Research and Development in Japan
Takayuki Narushima
Department of Materials Processing, Tohoku University

The research and development of titanium and its alloys as well as progress in Japanese titanium industries and markets are described. The academic and industrial advances and activities within the past four years after the 13th World Conference on Titanium held in San Diego, USA, are overviewed.

 

 

Takayuki_NarushimaDr. Takayuki Narushima received B.S., M.S., and Ph.D. degrees in Engineering from Tohoku University, Japan, in 1985, 1987, and 1994, respectively. He joined the Department of Metallurgy at Tohoku University as a Research Associate from 1987 to 1994 and as an Associate Professor from 1994 to 2004. He was a Professor at the Tohoku University Biomedical Engineering Research Organization (TUBERO), and since 2007, he has been a Professor in the Department of Materials Processing at Tohoku University. From 1998 to 1999, he served as a Research Fellow at the University of California, Berkeley (Monbusyo Fellowship Program). His current research interests on titanium and its alloys include surface modification for biomedical applications, experimental and theoretical study on thermal oxidation, and melting process.

UNITED KINGDOM

Titanium Alloy Research developments in the United Kingdom
Martin Jackson
Department of Materials Science and Engineering, The University of Sheffield

Highlights of the titanium alloy research developments in the United Kingdom since Ti-2015 will be presented. The current (aerospace and defence dominated) research and industry landscape will be reviewed, describing the increasingly strong and collaborative fundamental research conducted at UK universities and research centres for a range of sectors. Particular emphasis will be placed on; (1) the role of advanced characterization and modelling techniques in order to better understand the effects of processing, in-service life and environment on titanium alloy components. (2) Developments towards more affordable titanium alloy components, including powder, scrap and wire derived manufacturing processes.

Martin Jackson is currently Reader in Metals Processing at the Univ. Sheffield, United Kingdom.  He graduated with a First Class MEng in Materials Science and Engineering from the Univ. Sheffield in 1997.  He worked at Rolls-Royce as a graduate trainee before studying his PhD at the Royal School of Mines, Imperial College London.  Dr Jackson was awarded the IOM3 Titanium prize in 2003 and a Royal Academy of Engineering Research Fellowship (2005-2010) to develop solid state processes for low cost titanium. 

He is co-director (with Brad Wynne) of the Sheffield Titanium Alloy Research (STAR) research group who work with a broad range of companies in the aerospace, automotive and defence sectors on solid state processing of titanium and service performance of components.

Dr Jackson first presented at the World Titanium conference in Hamburg (Ti-2003).

 

UNITED STATES

Recente advances in titanium technology in the United States
Don Li
Engineering Manager, R&D, Arconic Engineered Structures

Substantial progress has continued in the US since the last (13th) World Titanium Conference with regards to titanium technology, products, processing, and applications. Titanium components produced by additive manufacturing have been qualified and are seeing real application on commercial and military aircraft. New, high performance titanium alloys have been developed for higher temperature service and other applications. Current production processes for titanium have been optimized, and new processes have been developed to further reduce cost and improve quality of these products. The Titanium Industry and academia are working closely together to address certain fundamental industry-wide issues. Computer modeling is now used more extensively in the titanium industry and research to facilitate the pace and success of these developments.

Extensive technical management experience of managing engineers and technical projects; Strong technical expertise in metal processing. Recipient of RTI Individual Achievement Award Have been providing critical support to different Business Units of Arconic.

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