Article
Chemistry, Multidisciplinary
Yuan Ma, Yongqing Chen, Tao Guo, Hong-Hui Wu, Rongming Wang, Yang He, Luning Wang, Lijie Qiao
Summary: In this study, the atomic shuffling mechanism during twinning nucleation in rhenium nanocrystals was analyzed using in situ high-resolution transmission electron microscopy. It was found that the double-layered prismatic planes initially shuffle into single-layered BCT planes, and subsequently adjacent BCT planes shuffle in opposite directions to form the basal planes of the twin embryo. Molecular dynamic simulations further confirmed this shuffling mechanism. These findings provide direct evidence of shuffle-dominated twinning nucleation with atomic details, which may contribute to better control of this critical twinning mode in HCP metals.
Article
Multidisciplinary Sciences
Jaeyoung Hong, Jee-Hwan Bae, Hyesung Jo, Hee-Young Park, Sehyun Lee, Sung Jun Hong, Hoje Chun, Min Kyung Cho, Juyoung Kim, Joodeok Kim, Yongju Son, Haneul Jin, Jin-Yoo Suh, Sung-Chul Kim, Ha-Kyung Roh, Kyu Hyoung Lee, Hyung-Seok Kim, Kyung Yoon Chung, Chang Won Yoon, Kiryeong Lee, Seo Hee Kim, Jae-Pyoung Ahn, Hionsuck Baik, Gyeung Ho Kim, Byungchan Han, Sungho Jin, Taeghwan Hyeon, Jungwon Park, Chang Yun Son, Yongsoo Yang, Young-Su Lee, Sung Jong Yoo, Dong Won Chun
Summary: Metastable phases, which are structures favored by kinetics, are widely found in nature. Crystals grown from high-energy precursors often initially take on metastable structures depending on conditions such as temperature, pressure, or crystal size. These metastable phases can have superior properties, making the discovery and synthesis of new metastable phases an exciting area for advancements in materials science.
Article
Chemistry, Physical
Artashes Ter-Isahakyan, Julia S. Rau, Thomas John Balk
Summary: A thin film combinatorial synthesis approach was used to develop a compositional and structural library for the OsRuWCo alloy system, resulting in 24 unique compositions and their corresponding crystal structures. A new high entropy alloy with non-equiatomic composition based on OsRuWCo exhibited a single-phase hexagonal close-packed structure, with factors such as thermodynamics and electronics promoting crystallinity in the system. The study also evaluated conventional parameters for high entropy alloys and discussed trends from amorphous to crystalline phases in this particular alloy system.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Qingchun Zhu, Yangxin Li, Huan Zhang, Xixi Qi, Xiaoqin Zeng
Summary: This study investigated the evolution behaviors of beta' phases in Mg-RE based alloys, revealing that beta(s)' and beta(l)' phases can transform into different phases during ageing at 225 degrees C. Density functional theory calculations were used to rationalize the evolution behaviors, providing guidance for controlling the structure and distribution of precipitates in Mg-RE based alloys.
Article
Engineering, Multidisciplinary
Hamed Mehrabi, Chunhui Yang, Baolin Wang
Summary: This study introduces a novel analytical method for predicting bending and springback behaviors of HCP sheet metals. By utilizing the variable elastic modulus approach, the model is able to capture nonlinearity in unloading and improve springback prediction. Results show significant improvements in prediction by considering the reverse effects of back force on springback behaviors under plane strain conditions.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Materials Science, Multidisciplinary
Xin-Wei Yang, Xiao-Hui Shi, Hui-Jun Yang, Jun-Wei Qiao, Peter K. Liaw, Yu-Cheng Wu
Summary: The addition of non-rare-earth elements Zr, Ti, and Co to rare-earth-based high-entropy alloys (HEAs) was investigated in this study. The enthalpy of mixing between elements was found to significantly affect phase formation, with Co forming intermetallic compounds and Ti rejecting to form a phase. The behavior of Zr depended on its affinity for Sc, leading to solid solution and precipitation formation. Among the elements, Zr had the most excellent strengthening effect on the alloy.
Article
Chemistry, Physical
Junyu Zhang, Miao Li, Zewen Kang, Bensheng Xiao, Haichen Lin, Jingyu Lu, Haodong Liu, Xue Zhang, Dong-Liang Peng, Qiaobao Zhang
Summary: In situ liquid cell transmission electron microscopy (TEM) was utilized to directly observe the real-time growth process of hcp Ni nanocrystals, revealing that their growth originates from metal-rich liquid phases. The development of reshaped preatomic facets in individual nanocrystals was also observed. The non-classical features of hcp Ni crystallization were further identified through theoretical calculations. These findings provide valuable insights into the nucleation and growth mechanism of hcp nanocrystals and can inform the rational design of synthesis pathways.
Article
Nanoscience & Nanotechnology
Cyril Cayron
Summary: Recent studies have reported a hexagonal phase in high carbon steels, but it has been shown that this structure is actually the result of double diffraction and streaking effects caused by twins and stacking faults, rather than a superstructure. Similar misunderstandings have also been found in papers reporting exotic structures in aluminum, copper, and diamonds.
SCRIPTA MATERIALIA
(2021)
Article
Geochemistry & Geophysics
Yu Nishihara, Shunta Doi, Noriyoshi Tsujino, Daisuke Yamazaki, Kyoko N. Matsukage, Yumiko Tsubokawa, Takashi Yoshino, Andrew R. Thomson, Yuji Higo, Yoshinori Tange
Summary: The viscosity of hcp-Fe is critical for understanding the dynamics of the Earth's inner core. High-pressure and -temperature deformation experiments were conducted to study the rheology of hcp-Fe, revealing a power-law dislocation creep mechanism. The dominant deformation mechanism at high temperatures is power-law dislocation creep, while at lower temperatures, a mechanism with power-law breakdown prevails.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Materials Science, Multidisciplinary
Lu Jiang, Velimir R. Radmilovi, Julian E. C. Sabisch, Liang Qi, Andrew M. Minor, Daryl C. Chrzan, Mark Asta
Summary: This study presents an experimental and theoretical investigation on twin nucleation in HCP metals, specifically identifying the {11(2) over bar1} twin nuclei in HCP rhenium originating from a <c+a> dislocation. The analysis rationalizes the favorability of dislocation-based nucleation mechanism and offers insights into design strategies for enhancing the balance between strength and ductility in HCP alloys.
Article
Chemistry, Physical
Daniel Irmer, Charbel Moussa, Lisa T. Belkacemi, Mohamed Sennour, Alan Vaissiere, Vladimir A. Esin
Summary: The effect of cold rolling on the precipitation kinetics of the hardening phase was investigated in AA2024. Cold rolling induced faster coarsening kinetics and nucleation/growth of the S-phase, resulting in lower hardness of pre-deformed AA2024-T8 compared to the undeformed state. Cold rolling also led to a fine and homogeneous distribution of hardening precipitates and a different aspect ratio of S-phase precipitates. These findings may be applicable to other precipitation-hardened alloys as well.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jayshri Dumbre, Shravan K. Kairy, Elaf Anber, Timothy Langan, Mitra L. Taheri, Thomas Dorin, Nick Birbilis
Summary: Scandium (Sc) containing Al-Si model alloys were heat-treated to form (Al,Si)(3)Sc phase at 350 degrees C and V-phase (AlSc2Si2) at above 450 degrees C. The hardening of the alloys was attributed to the coherent nanoscale (Al,Si)(3)Sc precipitates, while significant softening was observed due to the formation of coarse V-phase. The V-phase was found to have a rod morphology and six new orientation relationships with the alpha-Al matrix were determined using TEM.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
A. Coyne-Grell, J. Blaizot, S. Rahimi, I. Violatos, S. Nouveau, C. Dumont, A. Nicolay, N. Bozzolo
Summary: This study investigates the recrystallization mechanisms in different grain populations of the Ni-based superalloy AD730. The results show that the local microstructure affects the operative recrystallization mechanism, leading to different mechanisms in the deformed and recrystallized regions. The interaction of recrystallization with precipitates plays a central role in dynamic recrystallization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Li-Li Zhou, Cun-Jing Wang, Lei Han, Yang-Ze Li, Yong-Chao Liang, Ze-An Tian, Yun-Fei Mo, Xiao-Lu Xie
Summary: Understanding the structure of the plastic deformation region is crucial for enhancing the mechanical property of amorphous alloys. In this study, a molecular dynamics simulation was conducted to investigate the uniaxial compression of amorphous Cu64.5Zr35.5. The newly developed topologically close-packed cluster (TCP) method and shear transformation zone theory were employed to systematically explore the structural characteristics of the system, particularly the deformation regions. The findings reveal that densely packed TCP atoms are more prone to non-affine displacement and serve as carriers for accommodating plastic deformation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Hsin-Li Liang, Che-Wei Tsai, Sheng Guo
Summary: This study successfully designed corrosion-resistant CoCrFeMoNi HEAs with single-phase structure using two strategies, and validated the effectiveness of these methods through thermal stability. The corrosion resistance of these HEAs was found to be competitive compared to Hastelloy C276.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Manufacturing
Qiyang Tan, Jingqi Zhang, Ning Mo, Zhiqi Fan, Yu Yin, Michael Bermingham, Yingang Liu, Han Huang, Ming-Xing Zhang
ADDITIVE MANUFACTURING
(2020)
Article
Nanoscience & Nanotechnology
Jingqi Zhang, Yingang Liu, Mohamad Bayat, Qiyang Tan, Yu Yin, Zhiqi Fan, Shiyang Liu, Jesper Henri Hattel, Matthew Dargusch, Ming-Xing Zhang
Summary: This study demonstrates that in-situ grain refinement of CP-Ti can be achieved through controlling SLM parameters, with higher input energy density favoring grain refinement. Detailed microstructural characterization and multi-physics simulation were conducted to reveal the grain refinement mechanism. The refined CP-Ti showed high ductility without notable mechanical anisotropy, attributed to the intrinsic heat treatment effect resulting from the cyclic reheating in the SLM process.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
C. Yang, M. Q. Li, Y. G. Liu
Summary: The further refinement mechanisms of nanograins in the surface layer of TC17 subjected to severe plastic deformation via high energy shot peening were investigated in detail, revealing the abnormal face-centered cubic titanium (fcc-Ti) in nanoscale, the contribution of deformation twinning and dislocation motions, and the dominant role of extrinsic stacking faults in inducing twins in the abnormal nano fcc-Ti.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
C. Yang, M. Q. Li, Y. G. Liu
Summary: By subjecting the typical two-phase titanium alloy of Ti-5Al-2Sn-2Zr-4Mo-4Cr to high energy shot peening at room temperature, ellipsoid-shaped precipitates of ordered alpha(2)-Ti3Al phase were formed in the surface layer. The formation of these precipitates was attributed to the SPD-induced atomic diffusion behaviors at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Yingang Liu, Jingqi Zhang, Qiyang Tan, Yu Yin, Miaoquan Li, Ming-Xing Zhang
Summary: The addition of Mo to Ti-6Al-4V alloy can effectively increase the content of beta phase, suppress the formation of martensite, and improve the fracture ductility and energy absorption capacity of the alloy.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Qiyang Tan, Zhiqi Fan, Xiaoqin Tang, Yu Yin, Gan Li, Danni Huang, Jingqi Zhang, Yingang Liu, Feng Wang, Tao Wu, Xianliang Yang, Han Huang, Qiang Zhu, Ming-Xing Zhang
Summary: The study proposed a novel strategy combining substrate modification and inoculation treatment to successfully fabricate crack-free and dense high-strength 7075 alloy using SLM. This strategy can be implemented for SLM of other engineering alloys, providing a foundation for broadening industrial applications of SLM.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yingang Liu, Jingqi Zhang, Qiyang Tan, Yu Yin, Shiyang Liu, Meng Li, Miaoquan Li, Qiong Liu, Ying Zhou, Tao Wu, Feng Wang, Ming-Xing Zhang
Summary: The high-strength Cu-Co alloys were fabricated using laser powder bed fusion (L-PBF) additive manufacturing, where the addition of cobalt submicron particles led to remarkable grain refinement through heterogeneous nucleation. The Cu-Co alloys demonstrated a combination of high strength and ductility, with tensile strength reaching up to 491.1 +/- 12.6 MPa after post L-PBF heat treatment, without sacrificing ductility.
Article
Materials Science, Multidisciplinary
Yu Yin, Qiyang Tan, Qiang Sun, Wangrui Ren, Jingqi Zhang, Shiyang Liu, Yingang Liu, Michael Bermingham, Houwen Chen, Ming-Xing Zhang
Summary: The mechanical properties of a new cost-effective alloy were manipulated using a heterogeneous lamella design strategy. The design, involving composition and thermomechanical process, led to enhanced performance, with high yield strength and good ductility in comparison with other cost-effective alloys. This approach opens up new possibilities for the development of high-performance and cost-effective alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Danni Huang, Qiyang Tan, Yinghao Zhou, Yu Yin, Feng Wang, Tao Wu, Xianliang Yang, Zhiqi Fan, Yingang Liu, Jingqi Zhang, Han Huang, Ming Yan, Ming-Xing Zhang
Summary: LaB6 nanoparticles were identified as an effective inoculant for LAMed gamma-TiAl alloy, leading to significantly reduced grain size and transformed microstructural morphology. The inoculation treatment not only resulted in crack-free alloy fabrication but also increased compressive yield strength, ultimate strength, and strain to fracture, showing comparable or even better performance than conventionally processed gamma-TiAl alloys.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
C. Yang, M. Q. Li, Y. G. Liu
Summary: The role and behavior of stress-induced fcc-Ti in TC17 were investigated using HRTEM, revealing its importance in promoting surface nanocrystallization. Mechanisms such as deformation twinning and Shockley partial dislocation gliding were found to be key in the deformation of fcc-Ti in TC17.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Jingqi Zhang, Yingang Liu, Gang Sha, Shenbao Jin, Ziyong Hou, Mohamad Bayat, Nan Yang, Qiyang Tan, Yu Yin, Shiyang Liu, Jesper Henri Hattel, Matthew Dargusch, Xiaoxu Huang, Ming-Xing Zhang
Summary: This study develops a new titanium alloy with uniform mechanical properties through rational alloy design, addressing the spatially dependent microstructures and mechanical properties of additively manufactured titanium alloys.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Manufacturing
Jingqi Zhang, Yingang Liu, Behzad Bahrami Babamiri, Ying Zhou, Matthew Dargusch, Kavan Hazeli, Ming-Xing Zhang
Summary: In this study, a series of titanium gyroid lattice structures were designed and additively manufactured by laser powder bed fusion (L-PBF) to enhance specific energy absorption. Experimental results showed that tailoring the sheet thickness gradient and adding MgO nanoparticles enabled continuous hardening behavior and high strength, resulting in approximately 63% improvement in specific energy absorption for the uniform gyroid lattice structure. Finite element analysis based on a modified volumetric hardening model provided insights into the underlying mechanism governing continuous hardening behavior. This study demonstrates the potential of architecture engineering and material design in creating high-performance lightweight lattice structures using L-PBF.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Yingang Liu, Jingqi Zhang, Qiang Sun, Meng Li, Ming Yan, Xing Cheng, Miaoquan Li, Ming-Xing Zhang
Summary: This study successfully addresses the long-standing challenge of liquid-liquid phase separation and solute segregation during conventional solidification by employing laser powder bed fusion (L-PBF) for in-situ alloying of Cu-8 wt.% Fe. The resulting Cu-Fe nanocomposite exhibits a homogeneous microstructure, fine grains, and impressive mechanical and electrical properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Qiyang Tan, Yu Yin, Zhiqi Fan, Jingqi Zhang, Yingang Liu, Ming-Xing Zhang
Summary: In this study, it was found that adding 0.2-0.5 wt% LaB6 nanoparticles to the selective laser melted AlSi10Mg alloy can significantly refine grain size and homogenize the microstructure, thereby improving the mechanical properties of the alloy. However, increasing the LaB6 addition to 2 wt% did not further refine the grains, but instead weakened the ductility of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Guofang Liang, Qiyang Tan, Yingang Liu, Tao Wu, Xianliang Yang, Zhiqiang Tian, Andrej Atrens, Ming-Xing Zhang
Summary: The study examined the microstructure of a widely used A517GrQ low-carbon low-alloy steel after different heat treatments using advanced electron backscatter diffraction (EBSD) technique. It was found that controlling the cooling rate after austenitization is critical for achieving high strength and toughness simultaneously.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.