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首页> 外文期刊>Journal of Materials Engineering and Performance >Magnetron-Sputtered Ni-Cr and Ti-Si Layers to Protect Ti-46Al-8Nb (at.%) Substrates Against Gas Absorption
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Magnetron-Sputtered Ni-Cr and Ti-Si Layers to Protect Ti-46Al-8Nb (at.%) Substrates Against Gas Absorption

机译：磁控溅射的Ni-Cr和Ti-Si层，以保护Ti-46Al-8NB（at。％）底物免受气体吸收

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摘要

Ni-Cr and Ti-Si layers were deposited by magnetron sputtering on Ti-46Al-8Nb (at.%) substrates to suppress penetration of gases, which brings about undesirable changes in mechanical properties. Alloy samples with and without surface protection were subjected to interrupted oxidation at elevated temperature (700 and 800 degrees C) for up to 300 h. Selected mechanical properties as well as adhesion of surface layers were examined in the as-received and oxidized state. Analytical techniques used to characterize surfaces and cross sections of the samples included scanning electron microscopy and light microscopy, energy-dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy and x-ray diffraction. Both investigated layers were sufficiently adherent and effective in hindering gas absorption at 700 degrees C; however, only Ni-Cr showed promising properties for higher-temperature applications.
机译：通过Ti-46Al-8NB（AT.％）底物上的磁控溅射沉积Ni-Cr和Ti-Si层以抑制气体的渗透，这带来了机械性能的不希望的变化。 对具有和无表面保护的合金样品在升高的温度（700和800℃）下被中断氧化，可达300小时。 在接收和氧化状态下检查所选机械性能以及表面层的粘附性。 用于表征样品的表面和横截面的分析技术包括扫描电子显微镜和光学显微镜，能量分散X射线光谱，X射线光电子谱和X射线衍射。 两种研究层都充分粘附，有效地在700℃下阻碍气体吸收; 然而，只有Ni-Cr显示出高温应用的有希望的性能。

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