Experimental and Numerical Analyses of Effect of Thermal Stability of Lubricants on Heatstreaks in Cold Rolling of Stainless Steel

1993 ◽  
Vol 115 (3) ◽  
pp. 532-537 ◽  
Author(s):  
H. Yamamoto ◽  
T. Shiraishi ◽  
M. Ataka ◽  
Y. Iwasaki
Keyword(s):  
Thermal Stability ◽  
Stainless Steel ◽  
Heat Conduction ◽  
Numerical Analysis ◽  
Cold Rolling ◽  
Interface Temperature ◽  
Analysis Model ◽  
Rolled Material ◽  
Synthetic Ester ◽  
Thermal Stability Of

The numerical analysis model of temperature in a roll and a rolled material was first derived by solving the equations of heat conduction. Next, the occurrence limits of heatstreaks for reduction in thickness and interface temperature in a roll bite were evaluated experimentally and numerically in cold rolling experiments of stainless steel (SUS430) with two kinds of lubricants. Also, the thermal stability of two lubricants was measured by thermal balance experiments. Consequently, the limit of interface temperature due to heatstreaks calculated numerically is almost constant in a lubricant, which suggests that an outbreak of heatstreaks is mostly dependent on the thermal stability of lubricant. Also, larger quantity of synthetic ester is considered to give higher heatstreak resistance in cold rolling of stainless steel.

Effect of Pre-Strain Rolling on Annealing Behavior of Friction-Stir Welded AA6061-T6 Aluminum Alloy

2018 ◽  
Vol 385 ◽  
pp. 355-358 ◽  
Author(s):  
Sergey Mironov ◽  
Sergey Malopheyev ◽  
Igor Vysotskiy ◽  
Daria Zhemchuzhnikova ◽  
Rustam Kaibyshev
Keyword(s):  
Heat Treatment ◽  
Thermal Stability ◽  
Aluminum Alloy ◽  
Cold Rolling ◽  
Grain Growth ◽  
Rolling Schedule ◽  
Annealing Behavior ◽  
Friction Stir ◽  
Welding Direction ◽  
Thermal Stability Of

In this work, the effect of pre-strain cold rolling on thermal stability of friction-stir welded AA6061-T6 alloy was studied. The pre-strain rolling was found to be very effective in suppression of abnormal grain growth during standard post-weld T6 heat treatment. It was also shown that the efficiency of this approach essentially depends on rolling path and the rolling along welding direction was the most effective rolling schedule.

Thermal stability of WAlN/WAlON/Al2O3-based solar selective absorber coating

MRS Advances ◽  
2016 ◽  
Vol 1 (41) ◽  
pp. 2807-2813 ◽  
Author(s):  
Atasi Dan ◽  
Kamanio Chattopadhyay ◽  
Harish C. Barshilia ◽  
Bikramjit Basu
Keyword(s):  
Thermal Stability ◽  
Stainless Steel ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Rf Magnetron Sputtering ◽  
Thermal Conversion ◽  
Solar Absorptance ◽  
Excellent Thermal Stability ◽  
Oxidation In Air ◽  
Thermal Stability Of

AbstractThe solar absorptance property of W/WAlN/WAlON/Al2O3-based coatings, deposited by DC/RF magnetron sputtering on stainless steel substrate was studied by measuring the reflectance spectra in the wavelength range of 250 - 2500 nm. The effect of thermal annealing on the optical properties of the solar selective absorber coatings was investigated. Annealing the coatings at 450°C for 150 hrs in air did not show any significant change in the spectral properties of the absorber coating indicating the excellent thermal stability of the coating. The W layer acts as infrared reflective layer and diffusion barrier on stainless steel substrate. The top Al2O3 layer serves as dense shield to protect the under layers from oxidation in air. In summary, the present study indicates the potential application of W/WAlN/WAlON/Al2O3-based selective coatings in high temperature photo thermal conversion systems.

Thermal stability of sputtered Cu∕304 stainless steel multilayer films

2007 ◽  
Vol 101 (12) ◽  
pp. 124311 ◽  
Author(s):  
X. Zhang ◽  
R. K. Schulze ◽  
H. Wang ◽  
A. Misra
Keyword(s):  
Thermal Stability ◽  
Stainless Steel ◽  
Multilayer Films ◽  
304 Stainless Steel ◽  
Thermal Stability Of

On the electrografting of stainless steel from para-substituted aryldiazonium salts and the thermal stability of the grafted layer

2010 ◽  
Vol 205 (3) ◽  
pp. 820-827 ◽  
Author(s):  
Mogens Hinge ◽  
Elsa Silva Gonçalves ◽  
Steen Uttrup Pedersen ◽  
Kim Daasbjerg
Keyword(s):  
Thermal Stability ◽  
Stainless Steel ◽  
Thermal Stability Of

scholarly journals Thermal stability of sputter-deposited 330 austenitic stainless-steel thin films with nanoscale growth twins

2005 ◽  
Vol 87 (23) ◽  
pp. 233116 ◽  
Author(s):  
X. Zhang ◽  
A. Misra ◽  
H. Wang ◽  
J. G. Swadener ◽  
A. L. Lima ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Sputter Deposited ◽  
Thermal Stability Of

Modelling of Quiet Sun Coronal Structures

1994 ◽  
Vol 144 ◽  
pp. 169-176
Author(s):  
S. Serio
Keyword(s):  
Thermal Stability ◽  
Heat Conduction ◽  
Magnetic Fields ◽  
Solar Corona ◽  
Thermal Stratification ◽  
Recent Progress ◽  
Coronal Loops ◽  
Dynamic Heating ◽  
Thermal Stability Of ◽  
Coronal Structures

AbstractThe 1978 paper by Rosner et al. has set the basis for a new way of understanding thermal stratification in the solar corona, taking into account the constraints of magnetic fields on heat conduction. This paper will review recent progress in modelling of coronal loops, and in particular the effects of deviations from Spitzer conductivity, stationary siphon flows and shocks, thermal stability of the transition region, and possible diagnostics of dynamic heating of the coronal plasma.

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