Effect of primary creep on the relationship between indentation and uniaxial creep: A theoretical model
作者： Xiazi Xiao , Long Yu
DOI: 10.1016/J.IJSOLSTR.2020.09.017
关键词: Indentation 、 Creep 、 Succinonitrile 、 Alloy 、 Materials science 、 General expression 、 Hardening (metallurgy) 、 Soldering 、 Composite material 、 Theoretical models
摘要: Abstract In this work, a theoretical model is developed to address the effect of primary creep on relationship between indentation and uniaxial tests. By considering expansion spherical cavity in materials following creeping law, general expression conversion factor deduced during stage. For tests with flat punch indenters, closed-form formula specified for that determined by stress exponent hardening exponent. further difference critical time at onset steady-state deformation tests, it becomes available convert data into results The rationality accuracy proposed are verified comparing experimental Sn37Pb solder, AZ31 Mg alloy Succinonitrile. Furthermore, comparison previous models indicates ignoring could lead deviation converted from results.
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