Measurements of liquidus temperatures in the Cu-Nb and Cu-Cr systems |
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| Authors: | D Li M B Robinson T J Rathz |
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| Affiliation: | (1) Department of Applied Physics, Northwestern Polytechnical University, Xi’an, 710072, China;(2) School of Science, Xi’an Jiaotong University, Xi’an, 710049, China;(3) School of Computer Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China |
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| Abstract: | The Cu-Nb and Cu-Cr alloys at compositions ranging from 5 to 86 wt% Nb (89 wt% Cr) were processed in a clean environment and solidified at relatively low cooling rates of 50 to 75 °C/s to determine liquidus temperatures. In this study, both temperature measurements and microstructural observations confirmed the equilibrium phase diagram having an S-shaped, nearly flat liquidus, rather than that with a monotectic reaction in the liquid state. However, a metastable liquid miscibility gap exists in the two systems. |
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