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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Al2O3短纤维/Al-5.5Zn复合材料裂纹形核及扩展的TEM动态拉伸观察
, PP. 45-49
Keywords: 金属基复合材料,断裂力学,透射电镜,裂纹,铝合金
Abstract:
利用透射电镜(TEM)动态拉伸技术研究了外力作用下Al2O3短纤维增强Al-5.5Zn基复合材料的细观力学行为。结果表明,该材料中裂纹形核及扩展主要是在基体中或纤维/基体界面处进行。导致这一结果的原因在于纤维、基体之间强度差异太大。实验中还发现,卸载时,微裂纹有闭合现象。
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