High strain rate torsional behavior of an ultrahigh carbon steel (1.8 Pct C-1.6 Pct Al) at elevated temperature

1997 ◽  
Vol 28 (9) ◽  
pp. 1913-1920 ◽  
Author(s):  
Manuel Carsi ◽  
Oscar A. Ruano ◽  
Felix Peñalba ◽  
Qleg D. Sherby
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

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.


2020 ◽  
Vol 142 (4) ◽  
Author(s):  
Pradeep Lall ◽  
Vishal Mehta ◽  
Jeff Suhling ◽  
David Locker

Abstract Leadfree electronics in harsh environments often may be exposed to elevated temperature for the duration of storage, transport, and usage in addition to high strain rate triggering loads during drop-impact, vibration, and shock. These electronic components may get exposed to high strain rates of 1 to 100 s−1 and operating temperatures up to 200 °C in critical surroundings. Doped SAC solder alloys such as SAC-Q are being considered for use in fine-pitch electronic components. SAC-Q consists of Sn-Ag-Cu alloy in addition to Bi (SAC+Bi). Prior data presented to date for lead-free solders, such as SAC-Q alloy, at high aging temperature and high strain rate are for 50 °C sustained exposure. In this paper, the effect of sustained exposure to temperature of 100 °C on high strain rate properties of SAC-Q is studied. Thermally aged SAC-Q samples at 100 °C have been tested at a range of strain rates including 10, 35, 50, and 75 s−1 and operating temperatures ranging from 25 °C up to 200 °C. Stress–strain curves are established for the given range of strain rates and operating temperatures. Also, the computed experimental results and data have been fitted to the Anand viscoplasticity model for SAC-Q for comparison.


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