超细纹理超塑性材料Zn-Al合金及其在无铅和地震减振装置方面的应用(英文)

英文篇名：Ultra Fine Grained Superplastic Zn-Al Alloy and the Application for Pb-free and Maintenance Free Seismic Damper
中文刊名：光散射学报
英文刊名：Chinese Journal of Light Scattering
作者：Koichi Makii ; Atsumichi Kushibe ; Tsutomu Tanaka ; Kenji Higashi
英文作者：Koichi Makii1 ; Atsumichi Kushibe2 ; Tsutomu Tanaka3 ; Kenji Higashi3 1. Materials Research. Laboratories ; Kobe Steel Ltd. ; 5-5 ; Takatsukadai 1-chome ; Nishi-ku ; Kobe (651-2271) Japan2. R & Institute Takenaka Corp. ; 5-1 ; 1-chome ; Ohtsuka ; Inzai ; Chiba (270-1395) ; Japan3. Dep. of Met. and Mat. Sci. ; Osaka Pref. University ; Gakuen-cho 1-1 ; Sakai(599-8531) Japan
出版日期：2005-09-30
机构：Materials Research. Laboratories, Kobe Steel Ltd., 5-5, Takatsukadai 1-chome, Nishi-ku, Kobe (651-2271) Japan ,R & Institute Takenaka Corp., 5-1, 1-chome, Ohtsuka, Inzai, Chiba (270-1395), Japan ,Dep. of Met. and Mat. Sci., Osaka Pref. University, Gakuen-cho 1-1, Sakai(599-8531) Japan ,Dep. of Met. and Mat. Sci., Osaka Pref. University, Gakuen-cho 1-1, Sakai(599-8531) Japan
年：2005
期：03
出版单位：光散射学报

摘要

Since the Great Hanshin Earthquake in 1995, many investigations on the seismic damper have been made. On the other hand, it also theoretically projected that ultra fine grained Zn-Al alloys could show superplasticity at low temperatures [1-4]. Authors tried to make a massive ultra fine grained Zn-22 mass % Al alloy by means of TMCP (thermo-mechanical controlling process). The superplastic Zn-Al alloy is not susceptible to strain deterioration because it has a low work-hardening rate and, thus, does not accumulate strain significantly when deformed plastically. On the other hand, since its work hardening rate is low, plastic deformation proceeds locally, required plastic energy can't be sufficiently obtained and local fracture and local deformation instability can take place easily. The structural designer must overcome the strain localization resulting from the low work-hardening rate. Several types of seismic dampers were successfully developed with overcoming the local deformation instability. Three types of seismic dampers were finally developed.

引文

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