The stability of γ′ precipitates in a multi-component FeCoNiCrTi0.2 alloy under elevated-temperature irradiation

2020 ◽  
Vol 540 ◽  
pp. 152364 ◽  
Author(s):  
Guma Yeli ◽  
Da Chen ◽  
Kiyohiro Yabuuchi ◽  
Akihiko Kimura ◽  
Shaofei Liu ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Temperature Irradiation ◽  
The Stability

scholarly journals Thermal Stability of Residual Stresses in Differently Deep Rolled Surface Layers of Steel SAE 1045

2021 ◽  
Author(s):  
Stephanie Saalfeld ◽  
Thomas Wegener ◽  
Berthold Scholtes ◽  
Thomas Niendorf
Keyword(s):  
Thermal Stability ◽  
Elevated Temperature ◽  
Residual Stresses ◽  
Elevated Temperatures ◽  
Fatigue Behavior ◽  
Decisive Role ◽  
Deep Rolling ◽  
Material Conditions ◽  
The Stability ◽  
Thermal Stability Of

AbstractThe stability of compressive residual stresses generated by deep rolling plays a decisive role on the fatigue behavior of specimens and components, respectively. In this regard, deep rolling at elevated temperature has proven to be very effective in stabilizing residual stresses when fatigue analysis is conducted at ambient temperature. However, since residual stresses can be affected not only by plastic deformation but also when thermal energy is provided, it is necessary to analyze the influence of temperature and time on the relaxation behavior of residual stresses at elevated temperature. To evaluate the effect of deep rolling at elevated temperatures on stability limits under thermal as well as combined thermo-mechanical loads, the present work introduces and discusses the results of investigations on the thermal stability of residual stresses in differently deep rolled material conditions of the steel SAE 1045.

scholarly journals THE INFLUENCE OF THE STORAGE CONDITIONS OF RAW MATERIALS ON THE PRESERVATION OF THE PROPERTIES OF THE FUR SEMI-FINISHED PRODUCT

2021 ◽  
Vol 53 (3) ◽  
pp. 52-58
Author(s):  
Natalya P. Bodryakova
Keyword(s):  
Elevated Temperature ◽  
Relative Humidity ◽  
Raw Materials ◽  
Storage Conditions ◽  
Strength Properties ◽  
Biological Factor ◽  
Point Scale ◽  
Complex Characteristic ◽  
Characteristic Features ◽  
The Stability

This article deals with the problem of preserving the properties of a semi-finished fur product under the influence of a biological factor during the storage of raw materials. The characteristic features of the biodegradation of untreated rabbit skins during storage at elevated temperature and relative humidity are identified and described. A complex characteristic of a semi-finished fur product developed from raw materials of various degrees of microbiological spoilage is given. The author offers a point scale of assessment dynamics of the processes of destruction of fur raw materials and a point assessment of the organoleptic indicators of the semi-finished product was developed. As a result of comprehensive studies, it was found that the degree of damage to the fur raw materials being processed affects the decrease in the stability of the structure and strength properties of the finished semi-finished product.

scholarly journals Investigation of the stability of NiFe-(oxy)hydroxide anodes in alkaline water electrolysis under industrially relevant conditions

2020 ◽  
Vol 10 (16) ◽  
pp. 5593-5601 ◽  
Author(s):  
Marco Etzi Coller Pascuzzi ◽  
Alex J. W. Man ◽  
Andrey Goryachev ◽  
Jan P. Hofmann ◽  
Emiel J. M. Hensen
Keyword(s):  
Elevated Temperature ◽  
Current Density ◽  
Anodic Polarization ◽  
High Current Density ◽  
Water Electrolysis ◽  
High Current ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
And Performance ◽  
The Stability

Anodic polarization conducted at high current density, elevated temperature, and high KOH concentration impacted the structure and performance of NiFeOxHy and NiOxHy anodes.

Elevated Temperature Mechanical Properties of Al-8.5Fe-1.3V-1.7Si/SiCP Composite Prepared by Multi-Layer Spray Deposition

2011 ◽  
Vol 694 ◽  
pp. 708-712
Author(s):  
Yi Qiang He ◽  
Bin Qiao ◽  
Li Chao Feng
Keyword(s):  
Mechanical Properties ◽  
Elevated Temperature ◽  
Spray Deposition ◽  
Partial Dissolution ◽  
Sic Particles ◽  
The Stability

Al-8.5Fe-1.3V-1.7Si/SiCP composite prepared by multi-layer spray deposition in different states were investigated. Ultimate tensile strengths of the composite sheets as-rolled tested at 315°C and 400°C are up to 300MPa and 186MPa respectively. The fine dispersoids and fine grains, and homogeneous SiC particles contribute to the excellent mechanical properties of the composite at elevated temperature. Specially, partial dissolution of SiC particles contributes to the stability of Al12(Fe,V)3Si phase.

Factors Affecting the Stability of CdTe/CdS Solar Cells Deduced from Stress Tests at Elevated Temperature

2003 ◽  
Vol 13 (4) ◽  
pp. 289-299 ◽  
Author(s):  
I. Visoly-Fisher ◽  
K.D. Dobson ◽  
J. Nair ◽  
E. Bezalel ◽  
G. Hodes ◽  
...  
Keyword(s):  
Solar Cells ◽  
Elevated Temperature ◽  
Stress Tests ◽  
Factors Affecting ◽  
The Stability

On the stability of Guinier-Preston zones in an Al–1.87 at % Cu alloy at elevated temperature

1986 ◽  
Vol 95 (1) ◽  
pp. 73-80 ◽  
Author(s):  
U. Schmidt ◽  
A. Zahba ◽  
R. Schülbe ◽  
H. Löffler
Keyword(s):  
Elevated Temperature ◽  
Cu Alloy ◽  
The Stability

Microstructure and Elevated Temperature Flow Properties of Rapidly Solidified TiAl-Base Alloys

1988 ◽  
Vol 133 ◽  
Author(s):  
J. A. Graves ◽  
A. K. Ghosh
Keyword(s):  
Grain Size ◽  
Elevated Temperature ◽  
Fine Grained ◽  
Alloy Chemistry ◽  
Property Evaluation ◽  
Metastable Structure ◽  
Equilibrium Solidification ◽  
Solidification Pathway ◽  
The Stability ◽  
Temperature Exposure

ABSTRACTRapid solidification processing (RSP) of TiAl-base alloys often results in the formation of metastable crystalline products (e.g., Ti3Al) A key parameter controlling both the solidification pathway and the stability of the metastable structure is alloy chemistry. This study focuses upon the influence of minor alloy additions on the microstructure and properties of Ti52Al48 alloys produced by RSP. While alloys having minor Ta addi ions (<1 at.%) maintain near-equilibrium solidification structures similar to the binary alloy, the addition of Cr at a level of 5 at.% results in a nearly 100 vol.% metastable Ti3Al structure containing a fine dispersion of TiCr2 grain boundary precipitates. These precipitates limit grain growth during elevated temperature exposure, maintaining the fine (TiAl) grain size created during decomposition of the metastable product structure. Mechanical property evaluation of the consolidated RSP material indicates a greatly reduced flow stress for the fine grained Cr modified alloys. A preliminary analysis attributes this to the reduction in grain size and enhanced elevated temperature diffusion rates for the Cr containing TiAl-base alloys.

Effect of Elevated Temperature and Light on the Stability of Butorphanol Tartrate

1999 ◽  
Vol 6 (2) ◽  
pp. 91-96
Author(s):  
Archana Desai ◽  
Robert L. Barkin ◽  
Dharmesh H. Doshi ◽  
Thomas Hanzel ◽  
Uday Dave
Keyword(s):  
Elevated Temperature ◽  
The Stability
Sign in / Sign up

Export Citation Format

Share Document