Fatigue Performance of Cast and Powder Metallurgy Aluminium-BasedMMCS

机译：铸造和粉末冶金铝基MMCS的疲劳性能

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The paper explores fatigue on a powder metallurgy aluminium based MMC in twornprocessed forms and a cast aluminium MMC. The cast alloy contained major castingrndefects and a larger SiC particle size. The experiments were carried out at ambientrntemperature and focused on plain specimens plus circumferentially notched and doublernedge notched specimens with Kt factors in the range 1.4 to 2.7. It is demonstrated thatrnwhile the different microstructures of the alloys affect the notch fatigue response, this canrnbe significantly modified when defects are present. The resultant behaviour is modelledrnusing a finite element analysis and fracture mechanics calculation of residual life.

机译：本文探讨了两种加工形式的粉末冶金铝基MMC和铸铝MMC的疲劳。铸造合金含有主要的铸造缺陷和较大的SiC颗粒尺寸。实验是在环境温度下进行的，重点是普通试样以及Kt系数在1.4至2.7范围内的圆周缺口和双刃缺口试样。结果表明，虽然合金的不同显微组织会影响缺口疲劳响应，但是当存在缺陷时，可以显着改变合金的缺口疲劳响应。使用有限元分析和残余寿命的断裂力学计算对所得行为进行建模。

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来源
《Materials forum - aluminium alloys, their physical and mechanical properties - Volume 28 - 2004》|2004年|634-639|共6页
会议地点 Brisbane(AU)
作者
W.J. Evans; N. Mohd Shariff;
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作者单位

IRC in Computer Aided Materials Engineering, University of Wales Swansea, Swansea, SA2 8PP;

Universiti Sains Malaysia;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Metal Matrix Composites; Fatigue; Casting Defects; Notches; Propagation Predictions;

机译：金属基复合材料；疲劳;铸造缺陷；缺口；传播预测;

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2. 铁对粉末冶金法制备铝基复合材料微观组织和力学性能及磁学性能的影响 [J] . A.FATHY, Omyma EL-KADY, Moustafa M.M.MOHAMMED 中国有色金属学报：英文版 . 2015,第001期
3. Fatigue Performance of Powder Metallurgy (PM) Ti-6Al-4V Alloy: A Critical Analysis of Current Fatigue Data and Metallurgical Approaches for Improving Fatigue Strength [J] . Cao Fei, Chandran K. S. Ravi JOM . 2016,第3期

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6. Fatigue Performance of Cast and Powder Metallurgy Aluminium-Based MMCS [C] . International conference on aluminium alloy . 2004

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Fatigue Performance of Cast and Powder Metallurgy Aluminium-BasedMMCS

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