High-Strain-Rate Superplasticity of Big Grains in Spray Forming Ultrahigh Carbon Steel Contain 1.6wt.%Al(UHCS-1.6Al)

2012 ◽  
Vol 535-537 ◽  
pp. 639-642 ◽  
Author(s):  
Jun Wang ◽  
Hai Sheng Shi ◽  
Jing Guo Zhang

Abstract: Spray forming UHCS-1.6Al material has a refined equiaxed pearlitic structure, which was necessary for high-train-rate superplasticity. During deformation, the cementite particles pin the grain boundaries and prevent the grains growing up. As a result it exhibited excellent high-strain-rate superplasticity, with a peak ductility of 187% occurring at a strain rate of 5*10-3s-1.

2003 ◽  
Vol 426-432 ◽  
pp. 841-846 ◽  
Author(s):  
Donald R. Lesueur ◽  
C.K. Syn ◽  
Oleg D. Sherby ◽  
Dong Wha Kum

1996 ◽  
Vol 34 (12) ◽  
pp. 1919-1923 ◽  
Author(s):  
Eric M. Taleff ◽  
Mamoru Nagao ◽  
Kenji Higashi ◽  
Oleg D. Sherby

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