STATIC CREEP AND CYCLIC CREEP BEHAVIOUR OF SiC_w/6061Al AND SiC_p/2024Al COMPOSITES AT ELEVATED TEMPERATURE
LIU Pilin;WANG Zhongguang(State Key Laboratory for Fatigue and Fracture of Materials;Institute of Metal Research;The Chinese Academy of Sciences;Shenyang 110015); WANG Wenlong (Shanghai Jiaotong University;Shanghai 200030);TODA Hiroyuki(Suzuki Motor Corp.Hamamatsu-nishi;P. O. Box 1;432-91 Hamamatsu; Japan);KOBA YASHI Toshiro(Toyohashi University of Technology;Toyohashi 441; Japan)
Cite this article:
LIU Pilin;WANG Zhongguang(State Key Laboratory for Fatigue and Fracture of Materials;Institute of Metal Research;The Chinese Academy of Sciences;Shenyang 110015); WANG Wenlong (Shanghai Jiaotong University;Shanghai 200030);TODA Hiroyuki(Suzuki Motor Corp.Hamamatsu-nishi;P. O. Box 1;432-91 Hamamatsu; Japan);KOBA YASHI Toshiro(Toyohashi University of Technology;Toyohashi 441; Japan). STATIC CREEP AND CYCLIC CREEP BEHAVIOUR OF SiC_w/6061Al AND SiC_p/2024Al COMPOSITES AT ELEVATED TEMPERATURE. Acta Metall Sin, 1997, 33(11): 1227-1232.
Abstract The high temperature creep and cyclic creep behaviours of SiCw/6061Al and SiCp/2024Al composites were studied at 298℃. It was found that SiCw/6061Al composite showed better creep resistance but lower creep threshold stress as compared to SiCp/2024Al composite.Both composites showed cyclic creep retardation(CCR)in the tested stress region, while the CCR for SiCp/2024Al composite was more pronounced. For the SiCw/6061Alcomposite,the minimum cyclic creep rate decreased first and then increased with increasing the unloading amount, while for the SiCp/2024Al,the minimum cyclic creep rate decreased monotonically with increasing unloading amount.