Susceptibility to intercrystalline corrosion of pipe made of steel Kh17N13M2T
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The temperature threshold of resistance to ICC is 50° higher for heat 1 than for heat 2 with the same concentrations of carbon and titanium (with Ti: C=7.5).
The high susceptibility of heat 1 to carburizing is the main reason for its susceptibility to ICC.
Thorough removal of lubricants in nitric-hydrofluoric acid solution before heat treatment greatly reduced susceptibility to ICC.
KeywordsTitanium Heat Treatment Acid Solution High Susceptibility Temperature Threshold
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