|
|||||
|
|
| SiCp／Al复合材料微蠕变行为及其影响因素分析 | |
| 引用本文： | 李义春,安希. SiCp／Al复合材料微蠕变行为及其影响因素分析[J]. 航空学报, 1994, 15(5): 632-635 |
| 作者姓名： | 李义春 安希 |
| 作者单位： | 北京有色金属研究总院，哈尔滨工业大学 |
| 摘 要： | 通过对碳化硅颗粒增强铝基复合材料（ＳｉＣｐ／Ａｌ）微蠕变性能的测试及微观组织分析,研究了ＳｉＣｐ／Ａｌ复合材料微蠕变变形规律及机理。结果表明,ＳｉＣｐ／Ａｌ复合材料微蠕变变形行为可分为二个阶段：第一阶段是可动位错的耗尽阶段；第二阶段位错全面开动、增殖是引起材料微蠕变的主要原因。材料内的增强体颗粒、析出相可有效的提高材料的微蠕变抗力。 |
| 关 键 词： | 复合材料 蠕变分析 位错 |
ANALYSIS OF MICROCREEP AND ITS AFFECTING FACTORS OF SICP/AI COMPOSITES |
|
| Li YiChun. ANALYSIS OF MICROCREEP AND ITS AFFECTING FACTORS OF SICP/AI COMPOSITES[J]. Acta Aeronautica et Astronautica Sinica, 1994, 15(5): 632-635 | |
| Authors: | Li YiChun |
| Affiliation: | General Research Institute for Nonferrous Metals,Beijing,100088;Harbin Institute of Technology,Harbin,150006 |
| Abstract: | The deformation process and mechanism of microcreep of SiCp/Al composites are inves-tigated by the measurement of microcreep properties and analysis of transmlssion electron mi-croscopy,Results show that the process of microcreep deformation behavior of SICp/Al compos-ites can be divided into two;tages,the stage of moving dislocations defletion and the stage of dis-locations movement;the latter is the main cause of microcreep of SiCp/Al composites.The precip-itation phases and reinforcement particles in the SiCp/Al composites are important factors of in-creasing resistance to microcreep. |
| Keywords: | composite materials creep analysis dislocations(materials) |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《航空学报》浏览原始摘要信息 | |
| 点击此处可从《航空学报》下载全文 | |