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in creator/contributor: "Syn, C K"

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An Analysis of Gas Pressure Forming of Superplastic AL 5083 Alloy

Al 5083 disks of a superplastic forming grade were gas-pressure formed to hemispheres and cones at constant forming pressures with and without back pressure. The forming operation was performed using an in-house designed and built biaxial forming apparatus. The temporal change of dome heights of the hemispheres and cones were measured for the different forming and back pressures applied. The flow stresses and strain rates developed at the top of the dome during the forming step were shown to cl… more

Date: May 4, 2001

Creator: Syn, C K; O'Brien, M J; Lesuer, D R & Sherby, O D

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Ultrahigh carbon steel for automotive applications

Ultrahigh carbon steels (UHCSs), which contain 1--2.1% carbon, have remarkable structural properties for automotive application when processed to achieve fine ferrite grains with fine spheroidized carbides. When processed for high room temperature ductility, UHCS can have good tensile ductility but significantly higher strength than current automotive high strength steels. The material can also be made superplastic at intermediate temperatures and exhibits excellent die fill capability. Further… more

Date: December 4, 1995

Creator: Lesuer, D. R.; Syn, C. K. & Sherby, O. D.