Abstract
The effect of heat generation accompanying plastic deformation on instability of uniform plastic flow is considered. Linear stability analysis is performed taking into account both classical necking (geometrical effect) and thermomechanical coupling. Two types of conditions imposed in tensile testing are considered: those of constant (time and coordinate independent) imposed load and constant imposed cross-head velocity. A central issue in the paper is instability of plastic flow at extremely low temperatures (4.2 K to 10 K). Instability conditions are formulated, taking into account the temperature dependence of the thermal parameters. An example of tensile deformation of a thin Al-Mg rod is considered in some detail. Available experimental data are explained on the basis of stability analysis.
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.
