MICROALLOYING DESIGN FOR REACTOR PRESSURE VESSEL (RPV)

被引：0

作者：

Balart, M. J. ^{[1
]}

Knott, J. F. ^{[1
]}

机构：

[1] Univ Birmingham, Dept Met & Mat, Sch Engn, Birmingham B15 2TT, W Midlands, England

来源：

NEW DEVELOPMENTS ON METALLURGY AND APPLICATIONS OF HIGH STRENGTH STEELS: BUENOS AIRES 2008, VOLS 1 AND 2, PROCEEDINGS, | 2008年

关键词：

microalloying; reactor pressure vessel steels; strength; toughness; grain coarsening;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Microalloying technology is widely used in the steel industry to improve a steel's mechanical properties. This perspective comments on current Ti, Nb and V microalloying additions to plate and forging steels used for the fabrication of reactor pressure vessels. The critical microalloying element for prior austenite grain size control is Ti and versions of a steel containing insufficient TiN microalloying additions are likely to experience excessive grain growth in the regions of a weldment close to the fusion boundaries. Some examples of experimental evidence of prior austenite grain coarsening in non-microalloyed RPV steels are shown.

引用

页码：481 / 488

页数：8

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