Influence of rare-earth modification on the formation of nonmetallic inclusions in high-carbon steel

被引:12
作者
Smirnov L.A. [1 ,2 ]
Rovnushkin V.A. [1 ]
Dobuzhskaya A.B. [1 ]
Yunin G.N. [3 ,4 ]
Polevoi E.V. [3 ]
Boikov D.V. [3 ]
Spirin S.A. [1 ]
机构
[1] OAO Ural’skii Institut Metallov, Yekaterinburg
[2] ZAO Metal Consulting, Yekaterinburg
[3] AO EVRAZ ZSMK, Novokuznetsk
[4] EVRAZ Holding, Moscow
关键词
impact strength; impurity content; nonmetallic inclusions; oxides; plasticity; rail steel; rare-earth metals; steel modification; sulfides; wheel steel;
D O I
10.3103/S0967091216110127
中图分类号
学科分类号
摘要
The content of nonmetallic inclusions when rail and wheel steel is produced by intensive modern technology and modified by rare-earth metals is analyzed. The composition, morphology, dimensions, and distribution of the inclusions in the steel are determined in the case without oxidation by aluminum or treatment by silicocalcium and also with treatment of aluminum-bearing steel by both rare-earth metals and silicocalcium. Modification with rare-earth metals reduces the content of oxide inclusions in the rail and wheel steel. That improves the plasticity and impact strength of the products. © 2016, Allerton Press, Inc.
引用
收藏
页码:805 / 813
页数:8
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