scholarly journals Multi-scale analyses of constituent phases in a trip-assisted duplex stainless steel by electron backscatter diffraction, in situ neutron diffraction, and energy selective neutron imaging

2019 ◽  
Vol 158 ◽  
pp. 105-109 ◽  
Author(s):  
Wanchuck Woo ◽  
Jongyul Kim ◽  
Eun-Young Kim ◽  
Shi-Hoon Choi ◽  
Vyacheslav Em ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Neutron Diffraction ◽  
Duplex Stainless Steel ◽  
Electron Backscatter Diffraction ◽  
Neutron Imaging ◽  
Multi Scale ◽  
Electron Backscatter ◽  
In Situ Neutron Diffraction ◽  
Backscatter Diffraction

Examination of the Orientation Relationships between the Main Phases of Duplex Stainless Steel by EBSD

2007 ◽  
Vol 537-538 ◽  
pp. 297-302
Author(s):  
Tibor Berecz ◽  
Péter János Szabó
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Stainless Steels ◽  
Electron Backscatter Diffraction ◽  
Duplex Stainless Steels ◽  
Alloying Elements ◽  
Orientation Relationships ◽  
Σ Phase ◽  
Electron Backscatter ◽  
Backscatter Diffraction

Duplex stainless steels are a famous group of the stainless steels. Duplex stainless steels consist of mainly austenitic and ferritic phases, which is resulted by high content of different alloying elements and low content of carbon. These alloying elements can effect a number of precipitations at high temperatures. The most important phase of these precipitation is the σ-phase, what cause rigidity and reduced resistance aganist the corrosion. Several orientation relationships have been determined between the austenitic, ferritic and σ-phase in duplex stainless steels. In this paper we tried to verify them by EBSD (electron backscatter diffraction).

"In Situ-Tracking” Observation of Stainless Steel Microstructural Development during Elevated Service Using EBSD and SEM

2007 ◽  
Vol 561-565 ◽  
pp. 2087-2090 ◽  
Author(s):  
Ya Ming Huang ◽  
Qiang Fu ◽  
Chun Xu Pan
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Electron Backscatter Diffraction ◽  
Microstructural Development ◽  
Dislocation Model ◽  
Recrystallization Process ◽  
Novel Technique ◽  
Electron Backscatter ◽  
Backscatter Diffraction

Electron backscatter diffraction (EBSD) has been developed as a novel technique for characterizing crystallographic textures in recent years. The present paper proposes an “in-situ-tracking” approach using SEM and EBSD to examining the microstructural development and grain boundary variation of stainless steel during elevated 1200 °C service. The results revealed that in addition to the coarsened grains the fraction of low angle grain boundaries (LABG) became increased and flattened obviously during service. Comparing to the regular high temperature service (below 900 °C), the present “recovery and recrystallization” process was accelerated due to dislocation fastened movement and intensive interaction. However, the grain growth mechanism still meet the well-accepted dislocation model of subgrain combination.

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