SiCp／Al复合材料微蠕变行为及其影响因素分析

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (5): 632-635.

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ANALYSIS OF MICROCREEP AND ITS AFFECTING FACTORS OF SICP/AI COMPOSITES

Li YiChun¹, An Xiyun²

General Research Institute for Nonferrous Metals,Beijing,100088;Harbin Institute of Technology,Harbin,150006

Received:1992-08-14 Revised:1993-01-06 Online:1994-05-25 Published:1994-05-25

Abstract

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.

Key words: composite materials, creep analysis, dislocations (materials)

CLC Number:

V257
TB35

Li YiChun;An Xiyun. ANALYSIS OF MICROCREEP AND ITS AFFECTING FACTORS OF SICP/AI COMPOSITES[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(5): 632-635.

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ANALYSIS OF MICROCREEP AND ITS AFFECTING FACTORS OF SICP/AI COMPOSITES

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