Preface We take pleasure in publishing "Metallurgical Abstracts on Light Metals and Alloys" on our Web site in which are contained the research reports subsidized by The Light Metal Educational Foundation, inc. during 2018~2019. This is the 52th of the series of the research reports to be published by the Foundation. We hope that this publication will serve to develop light metals and to promote understanding and cooperation among the parties concerned over the world. February, 2020 M. Imasu Chairman of the Board of Directors, The Light Metal Educational Foundation, Inc.

Copyright (C) 2018 The Light Metal Educational Foundation, Inc. All rights reserved.