Cu-Al-Mn-BASED BAR MATERIAL AND SHEET MATERIAL EXHIBITING STABLE SUPER ELASTICITY, EARTHQUAKE-PROOF MEMBER USING THE SAME AND EARTHQUAKE-PROOF STRUCTURE USING THE EARTHQUAKE-PROOF MEMBER

• Main Authors: NAKAMIZO KENJI, KISE SUMIO, ISHIDA KIYOHITO, KUSAMA TOMOE, TESHIGAWARA SATOSHI, ISHIKAWA KOJI, OMORI TOSHIHIRO, KAINUMA RYOSUKE, TANAKA TOYONOBU, FUJII MISATO
• Format: Patent
• Language: English; Japanese
• Published: 25.08.2016
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide a Cu-Al-Mn-based bar material and a sheet material exhibiting stable and good super elasticity property, an earthquake-proof member using the same and an earthquake-proof structure using the earthquake-proof member.SOLUTION: There are provided a bar material consisting of a Cu-Al-Mn-based alloy, having super elastic property and having a re-crystal structure practically consisting of β single phase, where an area with particle diameter of each crystal particle of a radius of the bar or more on a longer direction cross section of the bar material is 90% or more of the longer direction cross section on optional position, an average crystal particle diameter of crystal particles with the particle diameter of the radius of the bar or more is 80% or more of a diameter of the bar, and a diameter of the bar is 8 to 50 mm, and a sheet material, an earthquake-proof member using the same and an earthquake-proof structure using the earthquake-proof member.SELECTED DRAWING: None 【課題】安定的に良好な超弾性特性を奏するＣｕ−Ａｌ−Ｍｎ系棒材及び板材、それを用いた制震部材、並びにその制震部材を用いた制震構造体を提供すること。【解決手段】Ｃｕ−Ａｌ−Ｍｎ系合金からなり、超弾性特性を有し、実質的にβ単相からなる再結晶組織を有してなる棒材であって、棒材の長手方向断面において、個々の結晶粒の粒径が棒の半径以上である領域が棒の任意位置における長手方向断面の９０％以上であり、前記粒径が棒の半径以上である結晶粒の平均結晶粒径が棒の直径の８０％以上であり、該棒の直径が８〜５０ｍｍである棒材及び板材、それを用いた制震部材、並びにその制震部材を用いた制震構造体。【選択図】なし