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ZHANG Junshan CHEN Weixing CAO Zhiben Dalian University of Technology , Dalian , China Associate Professor , Department of Materials Engineering , Dalian University of Technology , Dalian , China
金属学报(英文版)
Creep behavior of Fe-15Cr-25Ni alloys with different grain boundary features has been in- vestigated at 850 and 950℃ and in stress range of 14.7～78.5 MPa.The single phase alloy exhibits typical recovery creep characteristics,and for the alloy in which M_(23)C_6 carbides densely precipitate at grain ...
关键词: grain boundary feature , null , null
张俊善 , 陈卫星 , 曹智本
金属学报
在两种不同晶界状态下研究了Fe-15Cr-25Ni合金蠕变行为。单相合金表现出典型的回复蠕变行为,而在晶界上密集析出碳化物时蠕变速度大大降低,蠕变规律也和单相合金明显不同。沿晶界析出密集排列的碳化物时,晶界附近位错密度高,亚晶细小。对两种晶界状态下的蠕变机制进行了讨论。
关键词: 晶界特征 , recovery creep , dislocation annihilation
