Physical metallurgy of BATMAN II Ti-bearing martensitic steels

被引:12
作者
Pilloni, L
Attura, F
Calza-Bini, A
De Santis, G
Filacchioni, G
Carosi, A
Amato, S
机构
[1] ENEA, CR Casaccia, Innovat Dept, New Mat Div,Technol & Mat Qualificat Sect, I-00100 Rome, Italy
[2] CSM Ctr Sviluppo Mat, I-00129 Rome, Italy
关键词
D O I
10.1016/S0022-3115(98)00199-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Seven laboratory experimental casts of 7-9% Cr Ti-bearing martensitic steels were obtained via VIM process. Plates of 25 mm thickness were produced by hot rolling. On each cast CCT diagrams and critical temperatures were determined. Several austenitizing treatments were performed to study the grain size evolution. The effect of microstructure on impact properties were finally investigated. This paper discusses the role of chemical composition on microstructural and physical properties and shows the beneficial effect either of low-temperature austenitizing or double-austenitizing steps on impact properties. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码:1329 / 1335
页数:7
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