%0 Journal Article %T A Simple Model to Estimate the Yield Strength of Silicon Carbide Particulate Reinforced Aluminium Alloy Matrix Composites %A Mingjiu ZHAO %A Lijuan ZHU %A Yue LIU %A Jing BI %A
%J 材料科学技术学报 %D 2002 %I %X In the present study, a modified Hall-Petch correlation on the basis of dislocation pile-up model was used to estimate the yield strength of SiCp/Al composites. The experimental results show that the modified Hall-Petch correlation expressed as σcy=244+371λ-1/2 fits very well with the experimental data, which indicated that the strength increase of SiCp/Al composites might be due to the direct blocking of dislocation motion by the particulate-matrix interface,namely, the dislocation pile-up is the most possible strengthening mechanism for SiCp/Al composites. %K SiCp/Al composite %K Hall-Petch correlation %K Dislocation %K Yield strength
碳化硅 %K 铝合金 %K 复合材料 %K 弯曲强度 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=34FEF98F5BF1CAB7B923E126AF3BDB8F&yid=C3ACC247184A22C1&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=23104246A5FCFCEF&eid=5D9D6A8FC2C66FD8&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0