%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 <br>
%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<br>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