检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]上海交通大学
出 处:《金属学报》1996年第3期225-230,共6页Acta Metallurgica Sinica
基 金:国家自然科学基金;南京大学固体微结构物理国家重点实验室资助
摘 要:利用透射电子显微镜研究了金属间化合物FeAl超塑性变形后的位错组态。研究结果表明,变形过程中原始大晶粒被亚晶粒分割,亚晶界对亚晶粒内部位错的吸收导致亚晶界向小角度晶界演化.同时,亚晶粒又可再次被亚晶界分割,重复上述演化过程。The dislocation features in FeAl alloy after superplastic deformation have been investigated by TEM. The results show that the initial large grains are divided into small grains through the formation of sub-grain boundaries during the superplastic deformation,and the sub-grain boundaries can develop into small grain boundaries by absorbing the dislocations in sub-grains. Meanwhile, the new grains can be further divided by newly formed sub-grain boundaries. After repeating the above process of evolution, the initial large grains are fined and the superplastic deformation keeps going on.
分 类 号:TG131[一般工业技术—材料科学与工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.145