scholarly journals Reverse austenite transformation behavior in a tempered martensite low-alloy steel studied using in situ neutron diffraction

2017 ◽  
Vol 133 ◽  
pp. 79-82 ◽  
Author(s):  
Y. Tomota ◽  
W. Gong ◽  
S. Harjo ◽  
T. Shinozaki
Keyword(s):  
Neutron Diffraction ◽  
Alloy Steel ◽  
Low Alloy Steel ◽  
Transformation Behavior ◽  
Tempered Martensite ◽  
Austenite Transformation ◽  
In Situ Neutron Diffraction

In Situ Neutron Diffraction Analysis of Phase Transformation Kinetics in TRIP Steel

2005 ◽  
Vol 502 ◽  
pp. 339-344 ◽  
Author(s):  
Jozef Zrník ◽  
O. Muránsky ◽  
Petr Lukáš ◽  
Petr Šittner ◽  
Z. Nový
Keyword(s):  
Neutron Diffraction ◽  
Trip Steel ◽  
Retained Austenite ◽  
Volume Fraction ◽  
Internal Stresses ◽  
Austenite Transformation ◽  
Austenite Stability ◽  
Retained Austenite Stability ◽  
In Situ Neutron Diffraction

The precise characterization of the multiphase microstructure of low alloyed TRIP steels is of great importance for the interpretation and optimisation of their mechanical properties. In-situ neutron diffraction experiment was employed for monitoring of conditioned austenite transformation to ferrite, and also for retained austenite stability evaluation during subsequent mechanical loading. The progress in austenite decomposition to ferrite is monitored at different transformation temperatures. The relevant information on the course of transformation is extracted from neutron diffraction spectra. The integrated intensities of austenite and ferrite neutron diffraction profiles over the time of transformation are then assumed as a measure of the volume fractions of both phases in dependence on transformation temperature. Useful information was also obtained on retained austenite stability in TRIP steel during mechanical testing. The in-situ neutron diffraction experiments were conducted at two different diffractometers to assess the reliability of neutron diffraction technique in monitoring the transformation of retained austenite during room temperature tensile test. In both experiments the neutron investigation was focused on the volume fraction quantification of retained austenite as well as on internal stresses rising in structure phases due to retained austenite transformation.

Study of tempering behavior of lath martensite using in situ neutron diffraction

2015 ◽  
Vol 107 ◽  
pp. 29-32 ◽  
Author(s):  
Z.M. Shi ◽  
W. Gong ◽  
Y. Tomota ◽  
S. Harjo ◽  
J. Li ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Lath Martensite ◽  
In Situ Neutron Diffraction

In situ neutron diffraction study of fatigue behavior of CrFeCoNiMo0.2 high entropy alloy

2021 ◽  
Vol 139 ◽  
pp. 107371
Author(s):  
Haiyan He ◽  
Bing Wang ◽  
Dong Ma ◽  
Alexandru D. Stoica ◽  
Zhenduo Wu ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Fatigue Behavior ◽  
Neutron Diffraction Study ◽  
High Entropy Alloy ◽  
High Entropy ◽  
In Situ Neutron Diffraction
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