Article
Materials Science, Multidisciplinary
Siyi Di, Qianqian Wang, Yiyuan Yang, Tao Liang, Jing Zhou, Lin Su, Kuibo Yin, Qiaoshi Zeng, Litao Sun, Baolong Shen
Summary: The study showed that Cu addition in bulk metallic glass leads to better plasticity and yield strength after cryogenic thermal cycling treatment, while maintaining excellent soft magnetic properties, promoting structural heterogeneities formation and shear band initiation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Navid Sohrabi, Jamasp Jhabvala, Guven Kurtuldu, Ruggero Frison, Annapaola Parrilli, Mihai Stoica, Antonia Neels, Jorg F. Loffler, Roland E. Loge
Summary: A high-density, crack-free, amorphous bulk metallic glass based on a precious metal was successfully produced via additive manufacturing, achieving excellent mechanical properties and mirror-like surface finish. By investigating the main processing parameters and applying various characterization techniques, efficient production of precious metal parts with enhanced mechanical properties was demonstrated, providing new insights for the manufacturing of precious metal components.
APPLIED MATERIALS TODAY
(2021)
Article
Materials Science, Ceramics
Zerong Yang, Hongcai Wang, Sebastian KrauB, Florian Huber, Benoit Merle, Michael Schmidt, Matthias Markl, Carolin Koerner
Summary: This study provides a better understanding of the evolution of microstructure, composition, and corresponding micromechanical property changes during multiple laser beam melting. The Zr-based BMG material demonstrates good thermal and compositional stability. Crystallization leads to an increase in hardness and Young's modulus.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Physical
Qi Jiang, Peilei Zhang, Jie Tan, Zhishui Yu, Yingtao Tian, Songyun Ma, Di Wu
Summary: In this study, Fe-based bulk metallic glass was successfully produced using selective laser melting, with optimized parameters resulting in high relative density and amorphous rate samples. The analysis revealed the presence of various crystalline phases in the heat affected zone, and heat treatment was utilized to study the crystallization behavior of the amorphous phase. Variation in hardness was observed among different grain regions, with the highest hardness found in the amorphous phase.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Pengcheng Zhang, Cheng Zhang, Lin Liu
Summary: This study achieves a promising combination of high strength, good plasticity, and fracture toughness in 3D-printed bulk metallic glasses through the strategy of defect engineering.
MATERIALS RESEARCH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Liang Deng, Long Zhang, Konrad Kosiba, Rene Limbach, Lothar Wondraczek, Gang Wang, Dongdong Gu, Uta Kuehn, Simon Pauly
Summary: Monolithic bulk metallic glass and glass matrix composites with a relative density above 98% were produced by selective laser melting of Cu46Zr46Al8(at.%). The addition of B2 CuZr nanocrystals increased structural heterogeneity, affecting the mechanical properties of the materials. Despite the presence of crystals and high overall free volume content, all additively manufactured samples failed at lower stress than the as-cast glass due to increased brittleness caused by relatively large pores and higher oxygen content after selective laser melting.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Tuo Wang, Lianshun Zhang, Qiqi Hou, Qi Hao, Jichao Qiao
Summary: The plasticity of Fe75Mo5P13C7 BMG can be improved by annealing at low temperature due to nano-crystallization and remaining free volume. The correlation of plasticity with micro-structure, relaxation, and free volume characteristic varies in Fe75Mo5P13C7 BMG with its annealed state under different temperatures. The plasticity will be largest when the ratio of nanocrystals is equivalent to the free volume.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Yuanyuan Zhang, Xinlong Ma, Xin Lin, Zhenchao Xia, Xiaolei Su, Weidong Huang
Summary: A Zr55Cu30Al10Ni5 bulk metallic glass composite (BMGC) was fabricated using selective laser melting (SLM) with argon gas atomized powder. The microstructure and tensile deformation behavior of SLMed Zr55 BMGCs were studied, revealing a periodic microstructure with three different zones and a stepwise tensile fracture behavior. Nanoindentation tests showed that the nanocrystal + amorphous crystalline zone had lower hardness and elastic modulus, resulting in a significant stress drop after the failure of the hard amorphous layers. This study further confirmed the feasibility of SLM technology for developing high-performance BMGCs for industrial applications.
Article
Materials Science, Multidisciplinary
L. Deng, K. Kosiba, R. Limbach, L. Wondraczek, U. Kuehn, S. Pauly
Summary: The fully amorphous Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass samples with a relative density exceeding 98% were fabricated via selective laser melting (SLM), achieving high fracture stresses and reproducible plastic strain. The observed serrations during compressive loading suggest distinct shear-band dynamics in the additively manufactured samples compared to as-cast glass. Despite the presence of uniformly dispersed spherical pores and pronounced heterogeneity, shear bands are straight and form in the plane of maximum shear stress, indicating the potential for manipulating deformation behavior through tailoring porosity and structural heterogeneity in additive manufacturing.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Tianding Xu, Xiao-Dong Wang, Eric M. Dufresne, Yang Ren, Qingping Cao, Dongxian Zhang, Jian-Zhong Jiang
Summary: Anomalous fast atomic dynamics were discovered in a metallic glass with good glass forming ability, mainly attributed to the increased mobility of Cu atoms by Ag addition, leading to the formation of structural heterogeneity at the atomic level.
MATERIALS TODAY PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Yang Jiao, Emmanuel Brousseau, Koji Kosai, Alexander. J. G. Lunt, Jiwang Yan, Quanquan Han, Hanxing Zhu, Samuel Bigot, Weifeng He
Summary: The study demonstrates that laser surface melting can modify the hardness and shear banding behavior of bulk metallic glasses. Surface hardening and softening effects were observed post-LSM, with the introduction of compressive residual stress leading to increased surface hardening, and tensile residual stress resulting in surface softening. Differences in shear-banding mechanisms were detected near the surface, with reduced serrated flow and increased surface shear bands observed with compressive residual stress, and more pronounced serrated flows and deeper shear banding activity promoted with tensile residual stress following LSM.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Qiqi Hou, Tuo Wang, Jialu Zhou, Xiong Zhou, Qi Hao, Jichao Qiao
Summary: A method of static quenching has been proposed for the preparation of Zr-based bulk metallic glass (BMG) in this study. The compressive plasticity of Zr60Ni25Al15 BMG can be significantly improved from almost 0 to 6.5% using the static quenching method. The improved plasticity is attributed to the higher cooling rate and the presence of more soft spots in the static quenching sample compared to suction casting.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Po-Sung Chen, Pei-Hua Tsai, Tsung-Hsiung Li, Jason Shian-Ching Jang, Jacob Chih-Ching Huang, Che-Hsin Lin, Cheng-Tang Pan, Hsuan-Kai Lin
Summary: Ti-based metallic glasses have high potential for implant applications. A new biocompatible Ti-based bulk metallic glass composite was successfully fabricated through selective laser melting. The study demonstrates that the TiZrSiCoSnTa system shows promise for preparing biocompatible metallic glass composites into complicated graded foam shapes using additive manufacturing.
Article
Materials Science, Ceramics
Junjie Zhou, Jinxu Jiao, Dusha Luo, Jie Yang, Lingli Zhan, Dehua Xiong, Hong Li
Summary: For the first time, B2O3-ZnO-SiO2 (BZS) glass is used to prepare high reflective white glass ink for photovoltaic glass backplanes. White glass inks with specific compositions are successfully produced. The effects of B2O3/ZnO and B2O3/SiO2 ratios on the properties of low-melting glass (LMG) and white glass ink are studied. The research findings provide an important reference for the future development of high reflective and low-cost white glass inks for photovoltaic glass backplanes.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Zhiyuan Huang, Jianan Fu, Xin Li, Wenxin Wen, Hongji Lin, Yan Lou, Feng Luo, Zhenxuan Zhang, Xiong Liang, Jiang Ma
Summary: This study presents a method of ultrasonic-assisted rapid cold welding of metallic glasses without using any additives, achieving stable bonding of MG interface under high-frequency ultrasonic vibration, low temperature and low stress conditions. The ultrasonic technology accelerates atomic diffusion process, enabling rapid bonding of different compositions of MGs and potential for tuning new materials with new performance.
SCIENCE CHINA-MATERIALS
(2022)
