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首页> 外文期刊>Journal of Materials Engineering and Performance >On the Influence of the Heat Treatment Temperature on the Superelastic Compressive Behavior of the Ni-Rich NiTi Shape Memory Alloy
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On the Influence of the Heat Treatment Temperature on the Superelastic Compressive Behavior of the Ni-Rich NiTi Shape Memory Alloy

机译：关于热处理温度对富镍镍型记忆合金的超弹性压缩行为的影响

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In this paper, the relationship between the heat treatment temperature and the thermomechanical behavior of the Ni-rich NiTi shape memory alloy was experimentally investigated. Thermal analysis was performed through a differential scanning calorimetry experiments, and the NiTi superelastic effect was exhibited through loading/unloading compression cycle. It was found that the transformation temperatures and the compressive mechanical response are strongly affected by the heat treatment temperatures. The stressinduced phase transformation was characterized through the relationship between the heat treatment temperature and transformation stresses, elastic moduli and the deformation level upon loading. Subsequently, the evolution of the mechanical hysteresis loops and the mechanical dissipated energy was discussed. The obtained findings are supported by hardness measurements. To better understand the global tendency of the various phase transformation stages, the critical stress-temperature diagram was provided for different proposed heat treatment temperatures.
机译：本文实验研究了热处理温度与富含NITI形状记忆合金的热处理温度与热机械性能之间的关系。通过差示扫描量热法实验进行热分析，通过装载/卸载压缩循环表现出NITI超弹性效果。发现转变温度和压缩机械响应受热处理温度的强烈影响。通过在加载时的热处理温度和转化应力，弹性模量和变形水平之间的关系，表征应应力诱导的相变。随后，讨论了机械磁滞回路的演变和机械耗散能量。通过硬度测量支持所获得的结果。为了更好地了解各种相变级的全球趋势，提供了针对不同提出的热处理温度的临界应力温度图。

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