Influence of Heat Treatments on Microstructure and Magnetic Domains in Duplex Stainless Steel S31803

被引：6
作者：
Dille, Jean [1 ]
Pacheco, Clara Johanna [2 ]
Camerini, Cesar Giron [2 ]
Malet, Loic Charles [3 ]
Nysten, Bernard [4 ]
Pereira, Gabriela Ribeiro [1 ,2 ]
De Almeida, Luiz Henrique [1 ]
Alcoforado Rebello, Joao Marcos [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Met & Mat Engn, COPPE, Ctr Tecnol, Cidade Univ,Bloco F, BR-21941914 Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Lab Nondestruct Testing Corros & Welding, Dept Met & Mat Engn, BR-21941596 Rio De Janeiro, Brazil
[3] Univ Libre Bruxelles, 4MAT, Mat Engn Characterizat Proc & Recycling, 50 Ave FD Roosevelt,CP194-03, Brussels, Belgium
[4] Catholic Univ Louvain, Inst Condensed Matter & Nanosci, Bio & Soft Matter, Croix Sud 1-L7-04-02, Louvain La Neuve, Belgium
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2018年 / 49A卷 / 08期
关键词：
SIGMA-PHASE FORMATION; PRECIPITATION; TEMPERATURE; NITRIDES;
D O I：
10.1007/s11661-018-4721-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of heat treatments on microstructure and magnetic domains in duplex stainless steel S31803 is studied using an innovative structural characterization protocol. Electron backscatter diffraction (EBSD) maps as well as magnetic force microscopy (MFM) images acquired on the same region of the sample, before and after heat treatment, are compared. The influence of heat treatments on the phase volumetric fractions is studied, and several structural modifications after heat treatment are highlighted. Three different mechanisms for the decomposition of ferrite into sigma phase and secondary austenite are observed during annealing at 800 A degrees C. MFM analysis reveals that a variety of magnetic domain patterns can exist in one ferrite grain.
引用
收藏
页码：3515 / 3524
页数：10
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