Effect of Heat Treatment on Microstructure and Hardness of AlCrFeNiTi High Entropy Alloy AITranslate
Abstract AITranslate
AlCrFeNiTi high entropy alloy was prepared by vacuum arc melting in argon atmosphere.The influences were investigated of heating temperature,holding time and cooling methods on microstructure and hardness of AlCrFeNiTi high entropy alloy with methods of X-ray diffraction,metalloscope and Vickers hardness tester.The results show that the as-cast AlCrFeNiTi high entropy alloy is composed of two kinds of solid solutions with different body centered cubic structure,forming typical high entropy alloy microstructure of dendrite,interdendrite,andα＋βeutectic.With the increase of heating temperature,the dendrite phase experiences a process of first coarsening and subsequent refinement at 900℃.As the holding time increases and cooling rate decreases,the microstructures of dendrite and interdendrite coarsen,but the hardness of alloy shows tendency to ascend.The hardness of alloy after heat treatment depends on the content and morphology of dendrite phase,and meanwhile the residual internal stress also play an important role in the hardness of the alloy cooled at high speed.
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Basic Information:
DOI：
Chinese Library Classification Number:TG113[金属学及工艺—物理冶金]
Citation Information:
AlCrFeNiTi high entropy alloy was prepared by vacuum arc melting in argon atmosphere.The influences were investigated of heating temperature,holding time and cooling methods on microstructure and hardness of AlCrFeNiTi high entropy alloy with methods of X-ray diffraction,metalloscope and Vickers hardness tester.The results show that the as-cast AlCrFeNiTi high entropy alloy is composed of two kinds of solid solutions with different body centered cubic structure,forming typical high entropy alloy microstructure of dendrite,interdendrite,andα＋βeutectic.With the increase of heating temperature,the dendrite phase experiences a process of first coarsening and subsequent refinement at 900℃.As the holding time increases and cooling rate decreases,the microstructures of dendrite and interdendrite coarsen,but the hardness of alloy shows tendency to ascend.The hardness of alloy after heat treatment depends on the content and morphology of dendrite phase,and meanwhile the residual internal stress also play an important role in the hardness of the alloy cooled at high speed.
quote
| GB/T 7714-2015 | [1] CUI Pu-chang, ZHANG Yi-ming, FU Sheng, et al. Effect of Heat Treatment on Microstructure and Hardness of AlCrFeNiTi High Entropy Alloy[J]. Rare Metals and Cemented Carbides, 2017(1): 52-57. |
| MLA | [1] CUI Pu-chang, et al., "Effect of Heat Treatment on Microstructure and Hardness of AlCrFeNiTi High Entropy Alloy." Rare Metals and Cemented Carbides, no. 1, 2017, pp. 52-57. |
| APA | [1] CUI Pu-chang, ZHANG Yi-ming, FU Sheng, LUAN Tian, & NONG Zhi-sheng. (2017). Effect of Heat Treatment on Microstructure and Hardness of AlCrFeNiTi High Entropy Alloy. Rare Metals and Cemented Carbides(1), 52-57. |
| IEEE | [1] CUI Pu-chang, ZHANG Yi-ming, FU Sheng, LUAN Tian, and NONG Zhi-sheng, "Effect of Heat Treatment on Microstructure and Hardness of AlCrFeNiTi High Entropy Alloy," Rare Metals and Cemented Carbides, no. 1, pp. 52-57, 2017. keywords: {AlCrFeNiTi high entropy alloy;heat treatment;microstructure;hardness;dendrite;interdendrite;α＋βeutectic microstructure} |