Josef Čmakal
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View article: Root cause of embrittlement of in-service exposed high pressure steam pipeline
Root cause of embrittlement of in-service exposed high pressure steam pipeline Open
A segment of tube cut off from the high pressure steam pipeline was subjected to routine basic material tests, which resulted in very low impact energy of the pipe material (low-alloyed Cr steel). A part of the segment (and a comparative n…
View article: Microstructure and damage processes in a nickel-based alloy exposed to molten glass
Microstructure and damage processes in a nickel-based alloy exposed to molten glass Open
Nickel-based superalloys have already found many different applications in industrial facilities, especially those working at high temperatures, such as turbine blades in industrial and aircraft turbines, but also in the glass industry to …
View article: Influence of Long-term Annealing and Hot Bending on Creep of P92 Pipe
Influence of Long-term Annealing and Hot Bending on Creep of P92 Pipe Open
This work is focused on the creep behaviour of the thick-walled hot bended P92 pipe, with an outer diameter of 350 mm and wall thickness of 39 mm, in its dierent parts, namely in straight parts and bends.Selected creep specimens machined f…