Informativeness of parameters reflecting the effect of a surface layer on the long-term strength of high-temperature materials

1985 ◽  
Vol 17 (1) ◽  
pp. 79-82
Author(s):  
G. M. Borovskii ◽  
V. S. Mukhin ◽  
V. G. Savateev
Keyword(s):  
Surface Layer ◽  
High Temperature ◽  
Term Strength ◽  
High Temperature Materials

High-temperature long-term strength of shells in aggressive media with regard for the mass exchange

2007 ◽  
Vol 43 (2) ◽  
pp. 153-162
Author(s):  
A. M. Lokoshchenko ◽  
D. O. Platonov
Keyword(s):  
High Temperature ◽  
Mass Exchange ◽  
Term Strength

scholarly journals Long-Term Strength of a Composition of Complex Refractory Coating and Single-Crystal Rhenium-Alloyed Nickel Alloy after High-Temperature Holds

2013 ◽  
Vol 55 (7-8) ◽  
pp. 403-408
Author(s):  
V. P. Kuznetsov ◽  
V. P. Lesnikov ◽  
E. V. Moroz ◽  
M. S. Khadyev ◽  
I. P. Konakova
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Nickel Alloy ◽  
Term Strength ◽  
Refractory Coating ◽  
Alloyed Nickel

Prediction of High-Temperature Long-Term Strength of Materials

2013 ◽  
Vol 45 (5) ◽  
pp. 517-522 ◽  
Author(s):  
N. K. Kucher ◽  
R. P. Prikhod’ko
Keyword(s):  
High Temperature ◽  
Term Strength ◽  
Strength Of Materials

Influence of Modification of the Surface Layer by Penetrating Impurities on the Long-Term Strength of Zr–1% Nb Alloy

2020 ◽  
Vol 55 (4) ◽  
pp. 585-589
Author(s):  
V. S. Trush ◽  
О. H. Lukianenko ◽  
P. І. Stoev
Keyword(s):  
Surface Layer ◽  
Term Strength ◽  
Modification Of The Surface

High-temperature creep and long-term strength of structural elements under cyclic loading

2008 ◽  
Vol 40 (5) ◽  
pp. 531-537 ◽  
Author(s):  
D. V. Breslavsky ◽  
O. K. Morachkovsky ◽  
O. A. Tatarinova
Keyword(s):  
High Temperature ◽  
Cyclic Loading ◽  
High Temperature Creep ◽  
Term Strength ◽  
Structural Elements ◽  
Temperature Creep

PE-RT: A New Class of Polyethylene for Industrial Pipes

2006 ◽  
Author(s):  
Detlef Schramm
Keyword(s):  
Molecular Structure ◽  
High Temperature ◽  
High Temperatures ◽  
Power Plants ◽  
Cold Water ◽  
Industrial Applications ◽  
Pipe Production ◽  
Term Strength ◽  
Temperature Resistance

The development of a new family of PE materials with significantly improved processability and long term strength at high temperatures is discussed. These polymers form the basis for a new ISO class of polyethylene materials: PE-RT (Polyethylene of Raised Temperature resistance) for hot and cold water as well as industrial pipe applications. These materials have a unique molecular structure and crystalline microstructure, which provides excellent Long Term Hydrostatic Strength at high temperature without crosslinking the material. PE-RT type materials are successfully used in domestic hot and cold water piping systems for most applications. The easy processing and outstanding material properties made these resins also attractive for use in many industrial applications, where larger dimensions are required and regular Polyethylene cannot be used or has temperature limitations. They also compete against high end engineering plastics, offering significant cost savings. These materials provide significant process advantages to the converters, allowing high line speed pipe production and providing excellent flexibility and ease of installation for the application. A recently developed PE-RT type material offers still higher long-term strength at high temperature and further improved processability. This combination makes this resin particularly suitable for high temperature applications. An example of the latter is in larger diameter cooling water pipes in power plants. Pipes based on these materials can be connected via heat welding or by the use of mechanical fittings. Furthermore this material can be used in industrial applications, were traditional Polyethylene is limited by the temperature resistance and metallic materials suffer from corrosion. The excellent weldability of these materials provides various opportunities to connect also larger dimensions in industrial applications. Another example of this is the use in multi-layer structured oil pipelines on-shore and off-shore. This paper presents the material science and product design concepts that govern the high long-term hydrostatic strength at high temperatures. By controlling the molecular structure, the melt rheology and solid state properties can be influenced. This results in a unique balance of processability and hydrostatic strength. Further discussed are the product features and benefits of PE-RT materials. The paper shows examples of the application range for this type of products, using applications in the domestic pipes market as a reference study.

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