12th International Conference on Magnesium Alloys and their Applications (Mg 2021): New Applications
Program Organizers: Alan Luo, Ohio State University; Mihriban Pekguleryuz, McGill University; Sean Agnew, University of Virginia; John Allison, University of Michigan; Karl Kainer; Eric Nyberg, Kaiser Aluminum Trentwood; Warren Poole, University of British Columbia; Kumar Sadayappan, CanmetMATERIALS; Bruce Williams, Canmetmaterials Natural Resources Canada; Stephen Yue, Mcgill University
Tuesday 9:50 AM
June 15, 2021
Room: Invited III
Location: Virtual
Session Chair: Fusheng Pan, Chongqing University
9:50 AM Invited
The Research Progress of Magnesium and Alloys Based on Bibliometric Analysis: Xiaodong Peng1; Yan Yang1; 1Chongqing University
Based on the bibliometric analysis of scientific articles published in the field of magnesium alloys during 2015-2019, it is aimed to reveal the emerging and important research hotspots and frontiers of basic research and technology development in magnesium alloy field, as well as the main countries/regions and research institutions. At the same time, it provides a prediction for the future research direction of magnesium alloys and applications. The analysis results show that significant progresses have been achieved in high-performance magnesium alloys, magnesium-based composites, processing technologies and functional magnesium materials. Corrosion resistance and coatings, texture and twinning, grain refinement and dynamic recrystallization, biocompatibility and biodegradability, rare earth and LPSO phases are the main research hotspots in the latest years. It is proved that the bibliometric analysis provides a new way for the research and discovery of the latest progress and development direction in the field of magnesium alloys.
10:20 AM Invited
Micro-alloying as a Novel Strategy for Developing High-performance Mg Anodes for Aqueous Mg-air Batteries: Min Deng1; Linqian Wang1; Daniel Hoeche1; Sviatlana Lamaka1; Pingli Jiang1; Darya Snihirova1; Nico Scharnagl1; Mikhail Zheludkevich1; 1Helmholtz Zentrum Geesthacht
Aqueous Mg-air batteries can be used in many fields like as power sources for marine equipment and as biodegradable batteries for implantable bioelectronics. Nevertheless, the applications of aqueous Mg-air batteries are still limited due to unsatisfactory practical performance mainly related to anode surface blockage by Mg(OH)2/MgO precipitates and severe self-corrosion during discharge. In the present work, we introduce micro-alloying as a novel strategy for developing high-performance Mg anodes. The preliminary results have demonstrated that lean binary Mg-Ca is a good anode material showing better discharge properties than high purity Mg and some commercial alloy anodes. Here we show that the Mg-Ca anode performance can be further enhanced via indium (In) micro-alloying. Mg-air battery exhibits simultaneously increased power and energy density adopting micro-alloyed Mg-Ca-In anodes. With addition of minor In, self-corrosion of the anode is suppressed and, at the meantime, chunk effect is limited.