中国有色金属学会会刊(英文版)
中國有色金屬學會會刊(英文版)
중국유색금속학회회간(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2001年
2期
235-238
,共4页
孝云祯%高彩茹%马宏声%田士平
孝雲禎%高綵茹%馬宏聲%田士平
효운정%고채여%마굉성%전사평
The superplastic behavior of adding 0.22%Sc into the Al-6Mg alloy was studied by simple superplastic pretreatment process—warm rolling and cold rolling. The optimum superplastic temperature and strain rate of the alloys were defined and satisfactory results were obtained during the superplastic deformation at 811 K and initial strain rate 0=1.67×10-3 s-1. The average elongation of Al-6Mg-0.22Sc alloys reaches to 1 125%, and the maximum elongation is 1 200%, maximum m value (strain rate sensitive index) is 0.879. But under the same condition the elongation and maximum m value for Al-6Mg alloy were only 377% and 0.595, respectively. The superplastic deforming mechanism for Al-6Mg-0.22Sc alloys was also discussed.
