Micromechanical testing of ultrathin layered material specimens at elevated temperature
Micromechanical testing of ultrathin layered material specimens at elevated temperature
复制标题
高温下超薄层状材料样品的微观机械测试
DOI：
10.1080/09603409.2016.1182250
复制
发表时间：
2016
影响因子：
1.3
通讯作者：
E. Andrieu
中科院分区：
文献类型：
--
作者：
D. Texier;D. Monceau;J. Salabura;R. Mainguy;E. Andrieu
摘要在高温下的机械性能测试是一项具有挑战性的试样制备和机械测试下的“惰性”气氛。提出了一种局部表征高温下力学性能和热性能的实验方法。各种常见的“惰性”气氛进行了研究，以确定最有效的环境条件，以防止表面反应和降解的标本高达1373 K。由于NiCoCrAlYTa涂层单晶镍基高温合金在非常高的温度下具有高的表面反应性，即氧化和升华，因此使用NiCoCrAlYTa涂层单晶镍基高温合金来验证该技术的能力。研究发现，在超高压氩气气氛中加入吸氧剂，特别适合于高温下形成氧化铝的合金的研究。
Abstract The mechanical characterisation of ultrathin specimens at very high temperature is challenging in terms of specimen preparation and mechanical testing under ‘inert’ atmospheres. An experimental procedure for the local characterisation of mechanical and thermal properties at elevated temperature is presented. Various common ‘inert’ atmospheres were investigated up to 1373 K in order to identify the most efficient environmental conditions to prevent surface reactivity and degradation of specimens. A NiCoCrAlYTa-coated monocrystalline Ni-based superalloy was used to exemplify the capabilities of the technique because of its high surface reactivity at very high temperature, i.e. oxidation and sublimation. Purified overpressured argon atmosphere combined with oxygen getters was found to be particularly suitable for the study of alumina-forming alloys at elevated temperature.
影响因子：
6
作者：
Korte, S.;Clegg, W. J.
通讯作者：
Clegg, W. J.