Characterisation of precipitates formed in 26% Cr super ferritic stainless steel

被引：17
作者：
Ma, L. [1 ,2 ]
Hu, S. S. [1 ]
Shen, J. Q. [1 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China
[2] Baoshan Iron & Steel Co Ltd, Baosteel Res Inst, Shanghai 200431, Peoples R China
来源：
IRONMAKING & STEELMAKING | 2016年 / 43卷 / 10期
关键词：
Super ferritic stainless steel; Precipitation; Annealing; Intermetallic phases; Mechanical properties; Corrosion resistance; SIGMA-PHASE PRECIPITATION; LAVES PHASE; CHI-PHASE; TRANSFORMATION; TEMPERATURE; BEHAVIOR;
D O I：
10.1080/03019233.2016.1165486
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In this study, a newly designed super ferritic stainless steel, 26Cr-4Mo-2Ni, was developed and heated to 800 degrees C for different durations to study the precipitation behaviour of various intermetallic phases, which determined its final mechanical and corrosion resistance properties. The types, numbers and distribution of typical precipitates were investigated. Besides TiN and Nb(C,N), which are common phases formed in Ti- and Nb-stabilised ferritic stainless steel, the Laves, chi (chi) and sigma (sigma) phases were also detected in the grain boundary and grain interiors, depending on the aging times. The study focused on the morphology and regularity of these intermetallic precipitates. And the effect of precipitation on the mechanical properties and the corrosion resistance were discussed.
引用
收藏
页码：752 / 757
页数：6
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