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Behavior of nitrogen in transformer steel during heat treatment
In investigating variations of nitrogen content during high-temperature annealing, it was found that nitrogen content increases by factor of 1.5 to 2 during retarded heating to 600 to 800 C when annealing steel in nitrogen; this has unfavorable effect on texture formation during subsequent rapid heating; holding at 700 C leads to appearance of many aluminum nitride inclusions, which coagulate during slow heating at 700 to 900 C; holding at 900 to 950 C completes this coagulation, which improves electromagnetic properties. (See also English translation in Stal in English n 12 Dec 1968 p 1069-70) (27590)
Behavior of nitrogen in transformer steel during heat treatment
In investigating variations of nitrogen content during high-temperature annealing, it was found that nitrogen content increases by factor of 1.5 to 2 during retarded heating to 600 to 800 C when annealing steel in nitrogen; this has unfavorable effect on texture formation during subsequent rapid heating; holding at 700 C leads to appearance of many aluminum nitride inclusions, which coagulate during slow heating at 700 to 900 C; holding at 900 to 950 C completes this coagulation, which improves electromagnetic properties. (See also English translation in Stal in English n 12 Dec 1968 p 1069-70) (27590)
Behavior of nitrogen in transformer steel during heat treatment
Stal
Yanovskaya, T.N. (author) / Molotilov, B.V. (author) / Udovichenko, N.V. (author) / Petlyakov, M.M. (author)
1968
3 pages
Article (Journal)
Russian
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