Development of multifunctional zinc alloy having energy absorption of porous metals and damping capacity of superplastic materials

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420759
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: KITAZONO Koichi 首都大学東京, システムデザイン研究科, 教授 (20321573)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 超塑性 / ポーラス材料 / ひずみ速度感受性 / 衝撃吸収

Outline of Final Research Achievements

Porous Zn-22Al superplastic alloy having cell microstructure of porous metals and fine crystal grain of superplastic metals has been manufactured. The samples fabricated through casting process with a foaming agent has the porosity of 80% and average pore size of 2.9 mm. Fine crystal grains with 2.2 micrometer size has been fabricated through solution heat treatment followed by artificial aging. Quasi-static and dynamic compression tests revealed that the porous Zn-22Al superplastic alloy has high strain rate sensitivity. Newly developed porous metal has a potential of energy absorbing material.

Free Research Field

金属材料工学