Effects of Cr on stacking-fault energy and damping capacity of FeMn. Issue 8 (24th May 2017)

• Record Type: Journal Article
• Authors: Wu, B.; Qian, B.; Wen, Y.
• Is Part Of: Materials science and technology. Volume 33:Issue 8(2017)
• Page Start: 1019
• Page End: 1025
• Publication Date: 2017-05-24
• Subjects: Damping capacity -- FeMn alloy -- Cr -- Stacking-fault energy -- Ε martensite -- Corrosion resistance; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2016.1262318
• Languages: English
• ISSNs: 0267-0836

Abstract

Abstract : Effects of Cr on the stacking-fault energy (SFE) and damping capacity were investigated by experimental and theoretical methods. The effect of Cr on SFE was thermodynamically calculated; the damping capacity, phase composition, microstructure and corrosion resistance were experimentally measured. The results showed that Cr increases the SFE of Fe17MnxCr which resulted in the decay of damping capacity; the increase in α ' martensite with the increasing Cr content above 6% pins the movement of Shockley partials' dislocation and thus makes the damping capacity even worse; the optimum Cr content of Fe17MnxCr to improve the corrosion resistance in water vapour with a lesser decrease in damping capacity is about 6%.