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作者:

Wu, Qi (Wu, Qi.) | Pei, Ning (Pei, Ning.)

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摘要:

Particle reinforced aluminum matrix composites (PRAMCs) are widely applied in the industry for their high strength-weight ratio, hardness, and good creep and corrosion resistance. The failure behavior of PRAMCs-structure in actual service is a topic that has attracted extensive attention. In this work, the tensile fracture behavior of PRAMCs reinforced with four different concentrations of SiC particles was investigated. The results show that the brittleness of SiC/Al increases while the toughness decreases with the increase of SiC concentration. Meanwhile, acoustic emission (AE) signals were collected during the loading process by using transducers, and they were post-processed using cluster analysis algorithm. The results showed that AE data can be divided into two clusters, correlating to the brittle and ductile failure modes. Also, the frequency characteristics for each failure mode was identified, offering guidance for the health monitoring of in-service PRAMCs structural parts.

关键词:

Failure modes SiC concentration Acoustic emission (AE) Cluster analysis Particle reinforced aluminum composites (PRAMCs)

作者机构:

  • [ 1 ] [Wu, Qi]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 2 ] [Pei, Ning]Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China
  • [ 3 ] [Pei, Ning]Beijing Inst Technol, Key Lab Fundamental Sci Adv Machining, Beijing 100081, Peoples R China

通讯作者信息:

  • [Pei, Ning]Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China;;[Pei, Ning]Beijing Inst Technol, Key Lab Fundamental Sci Adv Machining, Beijing 100081, Peoples R China

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来源 :

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY

ISSN: 1738-494X

年份: 2024

期: 2

卷: 38

页码: 519-526

1 . 6 0 0

JCR@2022

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