Characterization of uniaxial fatigue behavior of precipitate strengthened Cu-Ni-Si alloy (SICLANIC(TM))

Frattura ed Integrità Strutturale

M. Elghorba¹  B. Saadouki¹  PH. Pelca²  M. Rachik³  T. Sapanathan³ 

[1] Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics. Casablanca, Morocco.;Lebronze alloys – Bornel, 11, rue Ménillet - 60540 Bornel – France;Sorbonne Universités, Université de Technologie de Compiègne, Laboratoire Roberval, CNRS UMR - 7337, Centre de Recherche Royallieu, CS 60319, 60203 Compiègne Cedex, France;

关键词: Fatigue;    Copper alloy;    S-N curve;    Softening;    Fracture;   

DOI  :  

来源: DOAJ

【 摘 要 】

Fatigue tests were conducted on cylindrical bars specimens to understand the fatigue behavior of SICLANIC®. Although it displays good resistance in monotonic tension, this material weakens and shows a softening in repeated solicitation. This has been verified through a SEM observation, the Cu-Ni-Si alloy presents transgranular failure by cleavage. The MansonCoffin diagram exhibited the plastic deformation accommodation. The plastic deformation becomes periodic and decreases progressively as the cycle number increases. The approximations of Manson Coffin give fatigue parameters values which are in good agreement with the experience.

【 授权许可】

Unknown