Improving the Structure and Properties of Cast Parts Made of Medium-Carbon Steel via Thermocyclic Treatment

被引：0
|
作者：
Kostyleva L.V. [1 ]
Novikov A.E. [2 ,3 ]
Gapich D.S. [1 ]
Karpova E.Y. [2 ]
Motorin V.A. [1 ,3 ]
机构：
[1] Volgograd State Agricultural University, Volgograd
[2] Volgograd State Technical University, Volgograd
[3] All-Russian Research Institute of Irrigated Agriculture, Volgograd
来源：
Novikov, A.E. (novikov-ae@mail.ru) | 1600年 / Pleiades journals卷 / 11期
关键词：
austenite grain size; casts of unalloyed medium-carbon steel; impact strength; structural defects in the state after casting and after normalization; thermocyclic treatment;
D O I：
10.1134/S2075113320010232
中图分类号：
学科分类号：
摘要：
Abstract: The effect of thermocyclic treatment (TCT) parameters exerted on the austenite grain size and the mechanical properties of cast medium-carbon steel has been studied. The advantages of TCT in comparison with normalization are shown, since after the latter the viscoplastic properties of steel can become worse owing to the formation of a dendritie-oriented ferrite-pearlitic structure under the action of Si and Mn microliquation segregations. Optimal TCT parameters for the casts of steel 45L are found, which provide a high level both for strength and for plastic properties, as well as for impact strength. © 2020, Pleiades Publishing, Ltd.
引用
收藏
页码：68 / 73
页数：5
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