In situ monitoring of isothermal phase transformation in two Nb stabilized austenitic stainless steels (316Nb) by neutron diffraction

2016 ◽  
Vol 688 ◽  
pp. 695-702 ◽  
Author(s):  
W. Jolly ◽  
C. Toffolon-Masclet ◽  
J.-M. Joubert ◽  
B. Marini ◽  
F. Porcher ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Neutron Diffraction ◽  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
In Situ Monitoring

In situ Monitoring of the Oxidation of Coated and Uncoated Austenitic Stainless Steels at Temperatures Lower than 600 °C: Part A—Coating Screening

2021 ◽  
Author(s):  
L. Brissonneau ◽  
A. Mathieu ◽  
F. Navacchia ◽  
H. Buscail ◽  
F. Riffard ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
In Situ Monitoring

scholarly journals In-situ Observation of Dislocation Evolution in Ferritic and Austenitic Stainless Steels under Tensile Deformation by Using Neutron Diffraction

2018 ◽  
Vol 104 (4) ◽  
pp. 201-207 ◽  
Author(s):  
Shigeo Sato ◽  
Asumi Kuroda ◽  
Kozue Satoh ◽  
Masayoshi Kumagai ◽  
Stefanus Harjo ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Stainless Steels ◽  
Tensile Deformation ◽  
Austenitic Stainless Steels

scholarly journals Phase-transformation and precipitation kinetics in vanadium micro-alloyed steels by in-situ, simultaneous neutron diffraction and SANS

2021 ◽  
Vol 220 ◽  
pp. 117317
Author(s):  
Chrysoula Ioannidou ◽  
Alfonso Navarro-López ◽  
Robert M. Dalgliesh ◽  
Arjan Rijkenberg ◽  
Xukai Zhang ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Neutron Diffraction ◽  
Precipitation Kinetics

D-106 Invited—In Situ Neutron Diffraction Studies of Deformation-Induced Phase Transformation in An Ultrafine Grained Trip Steel

2007 ◽  
Vol 22 (2) ◽  
pp. 182-182
Author(s):  
H. Choo ◽  
K. Tao ◽  
B. Clausen ◽  
J. E. Jin ◽  
Y. K. Lee
Keyword(s):  
Phase Transformation ◽  
Neutron Diffraction ◽  
Trip Steel ◽  
Ultrafine Grained ◽  
In Situ Neutron Diffraction

scholarly journals In Situ Neutron Diffraction Study of Phase Transformation of High Mn Steel with Different Carbon Content

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 101
Author(s):  
Youngsu Kim ◽  
Wookjin Choi ◽  
Hahn Choo ◽  
Ke An ◽  
Ho-Suk Choi ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Neutron Diffraction ◽  
Strain Hardening ◽  
High Strain ◽  
Tensile Deformation ◽  
Austenite Phase ◽  
Transformation Rate ◽  
Ε Martensite ◽  
In Situ Neutron Diffraction

In situ neutron diffraction was employed to examine the phase transformation behavior of high-Mn steels with different carbon contents (0.1, 0.3, and 0.5 wt.%C). With increasing carbon contents from 0.1 C to 0.5 C, the austenite phase fraction among the constituent phases increased from ~66% to ~98%, and stacking fault energy (SFE) increased from ~0.65 to ~16.5 mJ/m2. The 0.1 C and 0.3 C steels underwent phase transformation from γ-austenite to ε-martensite or α’-martensite during tensile deformation. On the other hand, the 0.5 C steel underwent phase transformation only from γ-austenite to ε-martensite. The 0.3 C steel exhibited a low yield strength, a high strain hardening rate, and the smallest elongation. The high strain hardening of the 0.3 C alloy was due to a rapid phase transformation rate from γ-austenite to ε-martensite. The austenite of 0.5 C steel was strengthened by mechanical twinning during loading process, and the twinning-induced plasticity (TWIP) effect resulted in a large ductility. The 0.5 wt.% carbon addition stabilized the austenite phase by delaying the onset of the ε-martensite phase transformation.

scholarly journals Tracing Phase Transformation and Lattice Evolution in a TRIP Sheet Steel under High-Temperature Annealing by Real-Time In Situ Neutron Diffraction

Crystals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 360 ◽  
Author(s):  
Dunji Yu ◽  
Yan Chen ◽  
Lu Huang ◽  
Ke An
Keyword(s):  
Phase Transformation ◽  
High Temperature ◽  
Neutron Diffraction ◽  
Real Time ◽  
Retained Austenite ◽  
Sheet Steel ◽  
Carbon Diffusion ◽  
Structure Evolution ◽  
In Situ Neutron Diffraction

Real-time in situ neutron diffraction was used to characterize the crystal structure evolution in a transformation-induced plasticity (TRIP) sheet steel during annealing up to 1000 °C and then cooling to 60 °C. Based on the results of full-pattern Rietveld refinement, critical temperature regions were determined in which the transformations of retained austenite to ferrite and ferrite to high-temperature austenite during heating and the transformation of austenite to ferrite during cooling occurred, respectively. The phase-specific lattice variation with temperature was further analyzed to comprehensively understand the role of carbon diffusion in accordance with phase transformation, which also shed light on the determination of internal stress in retained austenite. These results prove the technique of real-time in situ neutron diffraction as a powerful tool for heat treatment design of novel metallic materials.

scholarly journals In-Situ TEM Investigation of Interactions between Irradiation Defects and Crystal Defects in Austenitic Stainless Steels

2016 ◽  
Vol 22 (S3) ◽  
pp. 1474-1475 ◽  
Author(s):  
Bai Cui ◽  
Fei Wang ◽  
Qiaofeng Lu
Keyword(s):  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Crystal Defects ◽  
In Situ Tem

Texture Evolution and Phase Transformation in Titanium Investigated by In-Situ Neutron Diffraction

2011 ◽  
Vol 42 (6) ◽  
pp. 1444-1448 ◽  
Author(s):  
D. Ma ◽  
A. D. Stoica ◽  
K. An ◽  
L. Yang ◽  
H. Bei ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Neutron Diffraction ◽  
Texture Evolution ◽  
In Situ Neutron Diffraction

In-situ monitoring the realkalisation process by neutron diffraction: Electroosmotic flux and portlandite formation

2006 ◽  
Vol 36 (5) ◽  
pp. 791-800 ◽  
Author(s):  
Marta Castellote ◽  
Irene Llorente ◽  
Carmen Andrade ◽  
Xavier Turrillas ◽  
Cruz Alonso ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
In Situ Monitoring
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