Effect of Silicon on the Kinetics of Nb(C, N)Precipitation during the Hot Working of Nb-bearing Steels
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概要
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The effect of Si on the rate of Nb(C, N) precipitation was investigated by using fractional softening measurements. Compression specimens, with diameters of 7.6 mm and lengths of 11.4 mm, were prepared from four Nb microalloyed steels containing a range of Si concentrations from 0.01 mass% to 0.41 mass%. Double-hit compression tests, with a strain of 0.3 for each pass and a strain rate of 0.1/sec., were employed. A solution heat treatment was applied immediately prior to each test. It was found that the rate of Nb(C, N) precipitation in hot deformed austenite increases with Si concentration. This phenomenon is attributed to the increases in the activities of C and N that result from Si addition.
- 社団法人 日本鉄鋼協会の論文
- 2000-06-15
著者
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ESSADIQI Elhachmi
Materials Technology Laboratory, NRC CANMET
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Siciliano Jr.
Department Of Metallurgical Engineering Mcgill University
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Jonas John
Department Of Materials Engineering Mcgill University
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DONG JinXiang
Department of Metallurgical Engineering, McGill University
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LIU W.J.
Materials Technology Laboratory, Canada Center for Mineral and Energy Technology
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Essadiqi Elhachmi
Materials Technology Laboratory Canada Center For Mineral And Energy Technology
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Liu W.j.
Materials Technology Laboratory Canada Center For Mineral And Energy Technology
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Dong Jinxiang
Department Of Metallurgical Engineering Mcgill University
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JONAS John
Department of Metallurgical Engineering, McGill University
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