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Publikováno v:
Scripta Materialia. 180:40-44
Conventional ( 1 ¯ 011 ) twinning in hexagonal metals has the twin plane K1 = ( 1 ¯ 011 ) and the corresponding twinning direction η1= [ 1 ¯ 01 2 ¯ ] . Twinning shear is generally accomplished through the gliding of two-layer and/or four-layer t
Autor:
Denys Musiienko, Martin Zelený, Oleg Heczko, A. Sozinov, Ladislav Straka, Andrey Saren, Petr Veřtát, Robert Chulist, Kari Ullakko
Publikováno v:
SCRIPTA MATERIALIA. 2020, vol. 178, issue 1, p. 62-66.
We report on low twinning stress of 0.2 MPa for type 1 twin boundaries with rational (101) twinning plane and 0.1 MPa for type 2 twin boundaries with rational [(1) over bar 01] twinning direction, in Ni2MnGa0.8Fe0.2 seven-layer modulated martensite e
Autor:
Hamish L. Fraser, Qiang Feng, Stoichko Antonov, Dipankar Banerjee, Yufeng Zheng, Rajarshi Banerjee
Publikováno v:
Scripta Materialia. 176:7-11
A nano-scaled shuffle-induced modulated structure and heating-induced ordering have been characterized in a metastable β-titanium alloy, Ti-5Al-5Mo-5V-3Cr, and their inter-relationship was investigated through in-situ and ex-situ conventional and ab
Autor:
Stefaan Cottenier, Michiel Larmuseau, Tom Dhaene, Lode Duprez, Koenraad Theuwissen, Michael Sluydts
Publikováno v:
Scripta Materialia. 193:33-37
The promising results of deep learning in image recognition suggest a huge potential for microscopic analyses in materials science. One major challenge for its adoption in the study of materials is the limited number of images that are available to t
Autor:
Takuro Masumura, Toshihiro Tsuchiyama, Takuya Maeda, Kenji Kaneko, Ryuji Uemori, Kazuhiro Ichino, Hiroyuki Shirahata, Yasuhito Kawahara
Publikováno v:
Scripta Materialia. 193:112-116
Microstructures of both as-quenched and intercritical-annealed medium-Mn steel were investigated by transmission electron microscopy to acquire a better understanding of γ–ɛ and γ–α′ martensitic transformations. The orientation relationship
Autor:
Christina Scheu, Hanna Bishara, Eric Aimé Jägle, Leonie Gomell, Baptiste Gault, Moritz Roscher
Publikováno v:
Scripta Materialia
Laser surface remelting can be used to manipulate the microstructure of cast material. Here, we present a detailed analysis of the microstructure of Fe$_2$VAl following laser surface remelting. Within the melt pool, elongated grains grow nearly epita
Autor:
Michael J. Reece, Yichen Wang
Publikováno v:
Scripta Materialia. 193:86-90
The non-isothermal oxidation behaviour of (Hf-Ta-Zr-Nb)C high entropy carbide (HEC4), component monocarbides (HfC, TaC, NbC, and ZrC), and (Hf-Ta)C binary carbide powders was compared and studied from room temperature to 1300°C using thermogravimetr
Publikováno v:
Scripta Materialia. 193:103-107
Conventional ceramic sintering often requires high temperatures and hours of duration to achieve near full density. Herein, we adopted an innovative ultrafast high-temperature sintering (UHS) technique to densify several representative bulk oxides wi
Publikováno v:
Scripta Materialia. 193:64-70
Improving the piezoelectric performance of poly(vinylidene fluoride) (PVDF) is important for many applications, including energy harvesting. The addition of barium titanate (BaTiO3) nanoparticles in the polymer matrix is a popular method to facilitat
Publikováno v:
Scripta Materialia. 193:81-85
Heterogeneous microstructures have been proposed to optimize the mechanical properties in the respect of strength and ductility synergy in many alloy systems. In this work, the multi-phase hetero-structured microstructure consisting of fine grains an