Please use this identifier to cite or link to this item:
|Title:||Tensile properties of flow-formed polypropylene pipe||Authors:||Teoh, S.H.
|Issue Date:||Jan-1991||Citation:||Teoh, S.H., Lee, K.S., Raja, T.R. (1991-01). Tensile properties of flow-formed polypropylene pipe. Journal of Materials Science 26 (8) : 2111-2118. ScholarBank@NUS Repository. https://doi.org/10.1007/BF00549176||Abstract:||The effects of varying the percentage reduction on the tensile properties of flow-formed polypropylene pipes were investigated. Flow-forming, which is a single-point cold rolling process, was performed by using two rollers in a single pass on a conventional lathe machine. Specimens were cut at different orientation angles to the pipe direction. The load-extension behaviour of the flow-formed material showed that the phenomena of yielding and cold drawing gradually become less prominent above 30% reduction. These phenomena were also functions of the orientation angle. From the variations of tensile properties with orientation angle, it was concluded that flow-forming can produce high anisotropy, especially above 30% reduction. Improvements in yield and tensile strength were achieved after about 35 to 45% reduction. The tensile modulus increased significantly after 50% reduction. The yield strain reaches a maximum at about 50 to 60% reduction. Elongation at break decreases with increased reduction. It was noted that 80% reduction appeared to be the maximum reduction, after which the material will exhibit extremely low ductility. © 1991 Chapman and Hall Ltd.||Source Title:||Journal of Materials Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/58774||ISSN:||00222461||DOI:||10.1007/BF00549176|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 14, 2019
WEB OF SCIENCETM
checked on Oct 7, 2019
checked on Oct 13, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.