scholarly journals Investigating the deformation mechanisms of a highly metastable high entropy alloy using in-situ neutron diffraction

2020 ◽  
Vol 23 ◽  
pp. 100858 ◽  
Author(s):  
M. Frank ◽  
Y. Chen ◽  
S.S. Nene ◽  
S. Sinha ◽  
K. Liu ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Deformation Mechanisms ◽  
High Entropy Alloy ◽  
High Entropy ◽  
In Situ Neutron Diffraction

scholarly journals Deformation mechanisms of Mo alloyed FeCoCrNi high entropy alloy: In situ neutron diffraction

2017 ◽  
Vol 127 ◽  
pp. 471-480 ◽  
Author(s):  
Biao Cai ◽  
Bin Liu ◽  
Saurabh Kabra ◽  
Yiqiang Wang ◽  
Kun Yan ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Deformation Mechanisms ◽  
High Entropy Alloy ◽  
High Entropy ◽  
In Situ Neutron Diffraction

scholarly journals Probing deformation mechanisms of a FeCoCrNi high-entropy alloy at 293 and 77 K using in situ neutron diffraction

2018 ◽  
Vol 154 ◽  
pp. 79-89 ◽  
Author(s):  
Yiqiang Wang ◽  
Bin Liu ◽  
Kun Yan ◽  
Minshi Wang ◽  
Saurabh Kabra ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Deformation Mechanisms ◽  
High Entropy Alloy ◽  
High Entropy ◽  
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

scholarly journals Correlating work hardening with co-activation of stacking fault strengthening and transformation in a high entropy alloy using in-situ neutron diffraction

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Frank ◽  
S. S. Nene ◽  
Y. Chen ◽  
B. Gwalani ◽  
E. J. Kautz ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Work Hardening ◽  
Dislocation Motion ◽  
Stacking Fault ◽  
Dislocation Slip ◽  
Simultaneous Increase ◽  
High Entropy Alloy ◽  
High Entropy ◽  
In Situ Neutron Diffraction

AbstractTransformation induced plasticity (TRIP) leads to enhancements in ductility in low stacking fault energy (SFE) alloys, however to achieve an unconventional increase in strength simultaneously, there must be barriers to dislocation motion. While stacking faults (SFs) contribute to strengthening by impeding dislocation motion, the contribution of SF strengthening to work hardening during deformation is not well understood; as compared to dislocation slip, twinning induced plasticity (TWIP) and TRIP. Thus, we used in-situ neutron diffraction to correlate SF strengthening to work hardening behavior in a low SFE Fe40Mn20Cr15Co20Si5 (at%) high entropy alloy, SFE ~ 6.31 mJ m−2. Cooperative activation of multiple mechanisms was indicated by increases in SF strengthening and γ-f.c.c. → ε-h.c.p. transformation leading to a simultaneous increase in strength and ductility. The present study demonstrates the application of in-situ, neutron or X-ray, diffraction techniques to correlating SF strengthening to work hardening.

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