Effect of Al content on microstructures and properties of Fe1.25CoCrNi1.25Alx high-entropy alloys. Issue 8 (24th May 2021)

• Record Type: Journal Article
• Authors: Li, Chunyan; Lu, Yu; Li, Xinling; Zhao, Zhenxiang; Kou, Sheng-Zhong
• Is Part Of: Materials science and technology. Volume 37:Issue 8(2021)
• Page Start: 765
• Page End: 771
• Publication Date: 2021-05-24
• Subjects: High-entropy alloys -- microstructures -- mechanical properties -- texture -- corrosion resistance; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2021.1946992
• Languages: English
• ISSNs: 0267-0836

Abstract

Abstract : The effect of Al content on microstructures and properties of Fe1.25 CoCrNi1.25 Al x ( x = 0.1, 0.25, 0.4) high-entropy alloys was studied. The alloys arecomposed of a single-phase face-centered cubic solid solutionand do not change with the change of Al content. The tensile yield strength of as-cast alloys is below 200 MPa, and the elongation is above 55%. After cold-rolling and annealing, the strength and hardness increase with the increase of Al content. The comprehensive mechanical properties of the alloy with x = 0.25 reach the best. The texture composition of Fe1.25 CoCrNi1.25 Al0.4 gradually changes from {100} <001> to {110} <101> after cold-rolling and annealing. Trace Al is beneficial to improve the corrosion resistance of the alloys.