澳大利亚迪肯大学Peter Hodgson、Bernard Rolfe、Lingxue Kong三位教授到我室作学术报告
10月30日下午，澳大利亚迪肯大学Peter Hodgson、Bernard Rolfe、Lingxue Kong三位教授访问我室，在411会议室为师生分别作了题为“Advanced characterisation methods applied to next generation steels and other alloys”、“The challenges of forming and repairing ultra high strength metals into desired shapes”、“Porous membrane materials”的三场学术报告，材料学院院长秦高梧教授、丁桦教授，我室易红亮教授、许云波教授及多名研究生参加了报告会，报告会由易红亮教授主持。
Prof Hodgson was the Fellow of Australian Academy of Technology and Engineering (2011), Victoria’s first Australian Laureate Fellow (2009) and ARC Federation Fellow (2004). He was the Deputy Vice-Chancellor Research, Pro Vice-Chancellor Strategic Partnerships and Director of the Institute for Frontier Materials. Prior to that he was Professor of Engineering and Head of the School of Engineering and Technology at Deakin University. Professor Hodgson has over 600 research publications and has presented more than 40 keynote lectures at international conferences related to the physical metallurgy and modelling of steels. He received a Doctoris Honoris Causa from the University of Valenciennes in France for contributions to metal forming in 2005 and a Faculty Medal from AGH Poland in 2006 for contributions to Materials Science.
Professor Hodgson's research includes steel processing and the development of new alloys, and downstream ferrous and non-ferrous manufacturing processes associated with the automotive industry. He currently holds several ARC Discovery and Linkage grants, all related to metal processing.
▶▶Title：Advanced characterisation methods applied to next generation steels and other alloys
Steels can seem to the typical materials scientist as boring!However, they exhibit an amazing range of properties and physical phenomena.Until recently the typical approach was to change a composition or parameter and then measure the changes and then empirically develop structure-property relationships.However, advanced characterization linked to modelling (which will not be discussed in this presentation) and then linked to the properties has opened up a range of new opportunities based on manipulating the microstructure at various scale lengths: micro, meso, nano, atomic.In this presentation one aspect will be considered where 3D site specific atom probe tomography can be used to study such phenomena.
Prof Bernard Rolfe is currently a Professor (Advanced Manufacturing) in the School of Engineering at Deakin University. He was the Associate Head of School (Research) from 2014-2018, responsible for growing research and research culture in the School. During his leadership the School tripled its quality journal outputs per staff member, and almost doubled income and PhD numbers. His qualifications include a combined Economics and Engineering degree with honours in 1995 from the Australian National University (ANU), and a PhD in Advanced Manufacturing (ANU) in 2002. His research group has spent 20 years working on the use of advanced metals in sheet forming primarily for the automotive sector. He was the theme leader for lightweighting at the Australian Automotive Cooperative Research Centre (2014-2017), and he is currently on the Academic Advisory Board for the International Federation of Automotive Engineering. Bernard's current research focus is the design and forming of light weight structures, including the development of better constitutive models for materials. He is also investigating design techniques for lightweighting using additive manufacturing. Bernard has received four Vice Chancellor awards and has been part of over fifteen successful nationally competitive large research grants, totalling over AUD $22 million in awarded funds. He has published over 150 refereed articles.
Sheet Metal Forming, Material Modelling, Lightweight Design, Multi-material optimisation.
Forming lightweight structures, Sheet metal forming, Modelling Material Behaviour, Design of lightweight structures.
▶▶Title：The challenges of forming and repairing ultra high strength metals into desired shapes.
Steel is an amazing material.Humans have been working, forming, and investigating steel for over 2000 years. And yet we still continue to discover more ways to create interesting steel grades.Steel offers so many paths to desired performance.Traditionally, increasing the strength of steels has been achieved by quenching (forming martensite) and micro alloying (to enable strength and formability). When we consider steel in detail we find steel also allows strengthening through grain refinement, strain hardening, solid solution alloying, precipitation hardening, and phase and twinning effects.Only a few other metals share some of this multitude of hardening options.For this presentation we will also consider titanium alloys, which also offer a similar range of hardening options.
The vital next step is to determine how to manufacture these metal alloys into high performance parts.These metals (steel and titanium) have always had a trade-off between strength and ductility, formability and cost.These days the density of the metal also has a large impact because of lightweighting for emissions reduction.The challenge always remains how to produce high strength metal parts when ductility of the metal is low.
This presentation will review the work done at Deakin on developing new ultra-high strength steel alloys, how we have investigated manufacturing paths for ultra high strength steel and titanium alloys, and how we have investigated repairing parts with a mixture of steel and titanium.
Prof Rolfe will also introduce research that is occurring at Deakin in Chemistry, Ecology, IT, and Engineering.
Prof Kong has a broad research interest in micro and nanomaterials and systems. His key interests include micro and nanosystems using microfluidics and nanofluidics for biomedical and environmental applications; micro and nanomaterials for biological separation, desalination and gas separation; and micro and nano characterization. He attracted more than $15 million funds from National Competitive Grants schemes and industry. He was awarded an early career researcher from ARC and AAS in 2003 and a Roger Pysden Memorial Fellowship from Australian Business Limited in 2002, and an Australia Award - Endeavour Executive Awards in 2010. His innovative PCRDisc device has won a gold medal from ITEX2009, an iENA Special Award for Best Invention and iENA gold medal, and a JIPA Award for the Best Invention in Biotechnology.
Molecular diagnostics for infectious diseases; Membranes with aligned nanostructures and unique surface properties; Membrane characterisations; Mesoporous silica NPs for controlled drug delivery
▶▶Title：Porous membrane materials
Membranes have been widely used for water purification, gas separation, biomedical and biological applications, energy recovery, and fuel cells. However, the working conditions for the membranes could be incredible harsh and challenging. Metal membranes offer significant advantages over polymeric and ceramic membranes. In this work, various metal membranes with unique porous structure and surface properties will be developed and characterised. Their performances for different applications will be tested. New insight into further improvement in membranes will be elaborated.