Evaluation of Long-term Viscoelastic Properties of Gasket Material at Elevated Temperature by Indentation Technique

2019 ◽  
Vol 2019 (0) ◽  
pp. OS1507
Author(s):  
Yuki SEMA ◽  
Hirokazu TSUJI
Keyword(s):  
Elevated Temperature ◽  
Viscoelastic Properties ◽  
Indentation Technique ◽  
Gasket Material

OS1416 Evaluation of Viscoelastic Properties of Gasket Material at Elevated Temperature

2012 ◽  
Vol 2012 (0) ◽  
pp. _OS1416-1_-_OS1416-3_
Author(s):  
Naoki ISHII ◽  
Yuya MIYAZAWA ◽  
Masahiro HAGIHARA ◽  
Atsushi YAMAGUCHI ◽  
Hirokazu TSUJI
Keyword(s):  
Elevated Temperature ◽  
Viscoelastic Properties ◽  
Gasket Material

Microstructural characterization of a rapidly solidified Al-Fe-V-Si alloy for elevated temperature applications

1988 ◽  
Vol 46 ◽  
pp. 550-551
Author(s):  
R. E. Franck ◽  
J. A. Hawk ◽  
G. J. Shiflet
Keyword(s):  
High Temperature ◽  
Elevated Temperature ◽  
Grain Growth ◽  
Volume Fraction ◽  
Microstructural Characterization ◽  
Second Phase ◽  
Microstructural Stability ◽  
Elevated Temperature Strength ◽  
Temperature Applications

Rapid solidification processing (RSP) is one method of producing high strength aluminum alloys for elevated temperature applications. Allied-Signal, Inc. has produced an Al-12.4 Fe-1.2 V-2.3 Si (composition in wt pct) alloy which possesses good microstructural stability up to 425°C. This alloy contains a high volume fraction (37 v/o) of fine nearly spherical, α-Al12(Fe, V)3Si dispersoids. The improved elevated temperature strength and stability of this alloy is due to the slower dispersoid coarsening rate of the silicide particles. Additionally, the high v/o of second phase particles should inhibit recrystallization and grain growth, and thus reduce any loss in strength due to long term, high temperature annealing.The focus of this research is to investigate microstructural changes induced by long term, high temperature static annealing heat-treatments. Annealing treatments for up to 1000 hours were carried out on this alloy at 500°C, 550°C and 600°C. Particle coarsening and/or recrystallization and grain growth would be accelerated in these temperature regimes.

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