Abstract
In order to investigate the influence of inter-fiber spacing on proof stress in Al-Al3Ni eutectic composites, microstructure was observed in detail, and tensile and compressive 0.2% proof stresses were measured in the specimens that had been unidirectionally solidified at various rates.The tensile and compressive proof stresses are not coincident with each other. It may be thought that this difference is caused by residual stress. The proof stress depends on inter-fiber spacing and also cell density. The inter-fiber spacing effect is much larger than the cell density effect.The residual stress that has been estimated from the proof stress and rule of mixtures is also found to depend on the inter-fiber spacing. It is suggested that the dependence of proof stress on inter-fiber spacing relates to the dependence of residual stress, that has been accumulated during cooling process after solidification. Therefore, it is not adequate to understand the inter-fiber spacing dependence of proof stress in the composites in terms of Orowan’s by-pass theory, applied directly without considering the residual stress.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
