Thermal stability of microstructure and microhardness of Ni3Al samples with different duration of preliminary mechanical activation

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5132120

D. Osipov, I. Smirnov, K. V. Grinyaev, V. Melnikov, M. Korchagin, I. Ditenberg

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Abstract

Using scanning electron microscopy (EBSD analysis) and microindentation, we studied the features of the grain structure and the microhardness level of Ni3Al samples after synthesis and annealing at different temperatures. The effects of the duration of preliminary mechanical activation on the microstructure and microhardness of the intermetallic samples were revealed both after spark plasma sintering and subsequent heat treatments.Using scanning electron microscopy (EBSD analysis) and microindentation, we studied the features of the grain structure and the microhardness level of Ni3Al samples after synthesis and annealing at different temperatures. The effects of the duration of preliminary mechanical activation on the microstructure and microhardness of the intermetallic samples were revealed both after spark plasma sintering and subsequent heat treatments.

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不同初步机械活化时间Ni3Al试样显微组织和显微硬度的热稳定性

利用扫描电子显微镜(EBSD)和微压痕技术，研究了Ni3Al样品在不同温度下合成和退火后的晶粒结构特征和显微硬度水平。研究了放电等离子烧结及后续热处理对金属间化合物显微组织和显微硬度的影响。利用扫描电子显微镜(EBSD)和微压痕技术，研究了Ni3Al样品在不同温度下合成和退火后的晶粒结构特征和显微硬度水平。研究了放电等离子烧结及后续热处理对金属间化合物显微组织和显微硬度的影响。

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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