Infrared thermography applied for experimental investigation of thermomechanical couplings in Gum Metal
Infrared thermography applied for experimental investigation of thermomechanical couplings in Gum Metal
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DOI：
10.1080/17686733.2017.1284295
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发表时间：
2017-01-01
影响因子：
2.5
通讯作者：
Kuramoto, S.
中科院分区：
文献类型：
--
作者：
Golasinski, K. M.;Pieczyska, E.;Kuramoto, S.
初步调查结果的热机械耦合在创新的钛合金称为胶金属受到拉伸。由试验机和红外摄像机组成的实验装置能够获得高精度的应力-应变曲线，并将其与变形过程中试样的估计温度变化相关联。证实了金属胶具有超低弹性模量和高强度。红外测量确定伴随合金变形过程的平均和最大温度变化，允许估计热弹性效应，这与合金屈服点有关。试样表面的温度分布有助于分析导致颈缩和断裂的应变局部化效应。
Results of initial investigation of thermomechanical couplings in innovative -Ti alloy called Gum Metal subjected to tension are presented. The experimental set-up, consisting of testing machine and infrared camera, enabled to obtain stress-strain curves with high accuracy and correlate them to estimated temperature changes of the specimen during the deformation process. Both ultra-low elastic modulus and high strength of Gum Metal were confirmed. The infrared measurements determined average and maximal temperature changes accompanying the alloy deformation process, allowed to estimate thermoelastic effect, which is related to the alloy yield point. The temperature distributions on the specimen surface served to analyse strain localization effects leading to the necking and rupture.