TEM analysis of fine sulphides dissolution and precipitation in steel

被引：21

作者：

Garbarz, B ^{[1
]}

Marcisz, J ^{[1
]}

Wojtas, J ^{[1
]}

机构：

[1] Inst Ferrous Met, PL-44100 Gliwice, Poland

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 81卷 / 2-3期

关键词：

TEM; steel; nonmetallic inclusions; nano-sulphides;

D O I：

10.1016/S0254-0584(03)00049-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results of transmission electron microscopy (TEM) investigation of morphology, size distribution and chemistry of nano-inclusions formed in 4 mm thick laboratory steel ingots in as-cast condition and after heat treatment are reported. The investigated steel contained 0.11-0.14 C, 0.6 Mn, 0.25 Si, 0.22 Cu, 0.025-0.037 S (wt.%), and 80-115 ppm O and solidified at an average cooling rate of 250 K s(-1). In the as-cast specimens most nano-inclusions had a diameter in the range 10-100 nm with an average size of 30 nm. They were identified by microanalysis in thin foils as sulphides: MnS, (Mn,Cu)S, CuS and Cu2S. After a solution treatment of the thin ingots the re-precipitation of nano-sulphides was investigated. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：486 / 489

页数：4

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