Morphological Characteristics of Chromium Carbides in HP40NbTi Refractory Alloys in Cast Condition and after High-Temperature Holds


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Abstract

Scanning electron microscopy, different methods of electron diffraction, x-ray spectrum microanalysis and x-ray diffraction analysis are used to study the microstructure and crystallography of eutectic chromium carbides in HP40NbTi alloys in as-cast condition and after endurance tests for 2 – 100 h at 1150°C. The morphology and the transformations of the carbides after the high-temperature endurance tests are investigated.

About the authors

S. Yu. Kondrat’ev

Peter the Great St. Petersburg Polytechnic University

Author for correspondence.
Email: petroprom2013@yandex.ru
Russian Federation, St. Petersburg

G. P. Anastasiadi

Peter the Great St. Petersburg Polytechnic University

Email: petroprom2013@yandex.ru
Russian Federation, St. Petersburg

S. N. Petrov

Central Research Institute of Structural Materials “Prometey” (CRISM “Prometey”)

Email: petroprom2013@yandex.ru
Russian Federation, St. Petersburg

A. V. Ptashnik

Central Research Institute of Structural Materials “Prometey” (CRISM “Prometey”)

Email: petroprom2013@yandex.ru
Russian Federation, St. Petersburg

E. V. Svyatysheva

Central Research Institute of Structural Materials “Prometey” (CRISM “Prometey”)

Email: petroprom2013@yandex.ru
Russian Federation, St. Petersburg

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