Process and alloy design of LPSO type Mg alloy

2014 Fiscal Year Final Research Report

• Project/Area Number: 23246122
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Kumamoto University
• Principal Investigator: KAWAMURA YOSHIHITO 熊本大学, 大学院自然科学研究科, 教授 (30250814)
• Co-Investigator(Kenkyū-buntansha): KIM Jonghyun 熊本大学, 先進マグネシウム国際研究センター, 特任助教 (20500268) ; MAYAMA Tsuyoshi 熊本大学, 大学院先導機構, 准教授 (40333629) ; YAMASAKI Miciaki 熊本大学, 大学院自然科学研究科, 准教授 (50343885)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: マグネシウム / 長周期積層構造 / 合金設計 / 塑性加工 / 組織制御

Outline of Final Research Achievements

In order to establish the metallurgical principles for process and alloy design for the LPSO-typed Mg alloys that were developed in Japan and to renew the World Records of mechanical properties for Mg alloys, development of novel ingot metallurgy thermo-mechanical processing and novel powder metallurgy processing were preformed from viewpoints of metallography and mechanical engineering. In this study, some novel LPSO-typed alloys with high flame resistance and ultra-high strength were proposed using ingot metallurgy thermo-mechanical processing and powder metallurgy processing; for example, the extruded Mg-Zn-Y-La-Al-Ca multicomponent alloy with high flame resistance and the chip-consolidated Mg-Y-transition element alloy with ultra-high strength.

Free Research Field

金属工学