The long time strength and creep of heat resistant materials with a programmed change in temperature

1971 ◽  
Vol 3 (11) ◽  
pp. 1261-1267
Author(s):  
N. S. Mozharovskii ◽  
E. A. Antipov
Keyword(s):  
Heat Resistant ◽  
Long Time ◽  
Time Strength

Long-time strength of polyethylene in biaxial tension

1977 ◽  
Vol 12 (3) ◽  
pp. 352-360 ◽  
Author(s):  
A. M. Grinman ◽  
A. Ya. Gol'dman
Keyword(s):  
Biaxial Tension ◽  
Long Time ◽  
Time Strength

Effect of Pre-Oxidation on the Steam Oxidation of Heat-Resistant Steel T92

2018 ◽  
Vol 37 (8) ◽  
pp. 733-739
Author(s):  
Xu Hong ◽  
Liang Zhiyuan ◽  
Ding Jianliang ◽  
Zhao Qinxin ◽  
Guan Shipian
Keyword(s):  
Mass Gain ◽  
Oxide Thickness ◽  
Steam Oxidation ◽  
Resistant Steel ◽  
Ion Diffusion ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Initial Stage ◽  
Long Time ◽  
Lower Oxidation

AbstractEffect of pre-oxidation on the steam oxidation of T92 heat-resistant steel at 650 °C was investigated. The results show that the mass gain and the oxide thickness of T92 sample with pre-oxidation treatment were lower than that of T92 sample after exposure in steam at 650 °C. The compact and discrete Cr-rich oxide which formed on the pre-oxidized specimen hindered ion diffusion, leading to the lower oxidation rate. The effect of pre-oxidation worked at the initial stage due to the protective Cr-rich layer formed in air gas. After a long time exposure in steam, the pre-oxidation influence decreased slowly and eventually disappeared. What’s more, the adhesion property of oxide scale was improved by pre-oxidation.

Creep and Long-Time Strength of Compression Elements from Foam Concrete

2018 ◽  
Vol 284 ◽  
pp. 936-943
Author(s):  
M.V. Novikov ◽  
E.E. Prokshits ◽  
A.N. Goykalov
Keyword(s):  
Mechanical Properties ◽  
Structural Modification ◽  
Average Density ◽  
Foam Concrete ◽  
Short Term ◽  
Duration Of Action ◽  
Long Time ◽  
Time Strength ◽  
Strength And Deformation ◽  
Acting Load

In this article discusses the mechanical properties of foam concrete, which submitted based on the experimental data of long force resistance and deformation of compression elements from foam concrete. Also submitted criterion range of strength and deformation characteristics of foam concrete different structural modification with taking into account the permanently acting load, which necessary for calculation and design structures of buildings. In article such characteristics of foam concrete as durability and deformability at the age of 28 days by results of short-term tests and also influence of average density and a type of structure on its durability and deformability are considered. Change of mechanical properties of foam concrete in time by results of short-term tests is analyzed and studied. Experimental and theoretical researches which have in turn allowed to recommend for rationing of value of settlement characteristics the foam of concrete taking into account their variability, aging and duration of action of loading are executed.

Creep and long-time strength of unidirectional reinforced plastics in compression

1973 ◽  
Vol 6 (5) ◽  
pp. 718-722 ◽  
Author(s):  
A. M. Skudra ◽  
Ya. V. Auzukalns
Keyword(s):  
Reinforced Plastics ◽  
Long Time ◽  
Time Strength
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