Exploitation of novel processes for Mg alloy plates combining carbon innoculation and twin-roll casting

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820377
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Metal making/Resorce production engineering
• Research Institution: Nagaoka University of Technology
• Principal Investigator: TOMOYUKI Homma 長岡技術科学大学, 工学(系)研究科(研究院), 准教授 (50452082)
• Research Collaborator: YAMAMOYO Nobuyoshi ; NEMOTO Toshihumi
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: マグネシウム / 透過型電子顕微鏡 / 鋳造 / プロセス

Outline of Final Research Achievements

New rolling process associated with Mg alloys has been explored, and twin-roll casting is utilized so as to stimulate grain refinement due to the very high cooling rate. In addition to the grain refinement, one of carbon innoculation techniques has also been utilized. As a result, we propose novel TRC processes obtaining fine and uniform distribution of equiaxed grains in the TRC plates. The size of the innoculants is approximately 1 micrometer, and the nuclei are exist at almost center part of each grain. By means of transmission electron microscopy, we have found that Al-Mn and Al-C based compounds are detected from the nuclei.

Free Research Field

軽金属材料