Influence of P and C intergranular segregation during manufacturing and ageing on the fracture toughness of nuclear pressure vessel steels

被引：11
|
作者：
Andrieu, Antoine [1 ,2 ]
Pineau, Andre [2 ]
Joly, Pierre [1 ]
Roch, Francois [1 ]
Ryckelynck, David [2 ]
机构：
[1] AREVA, 1 Pl Jean Millier, F-92400 Courbevoie, France
[2] Ctr Mat Pierre Marie Fourt Mines ParisTech, F-91003 Evry, France
来源：
20TH EUROPEAN CONFERENCE ON FRACTURE | 2014年 / 3卷
关键词：
Low alloy steels; thermal ageing; fracture; DBTT shift; intergration; phosphorus; PHOSPHORUS SEGREGATION;
D O I：
10.1016/j.mspro.2014.06.108
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Mechanical tests on Charpy and CT specimens of a low alloy MnNiMo steel under two conditions, as received and thermally aged, revealed a shift of the ductile to brittle transition temperature. In this paper, an approach based on the combination of local fracture mechanics and segregation kinetics is proposed in order to describe this shift. (C) 2014 Published by Elsevier Ltd.
引用
收藏
页码：655 / 660
页数：6
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