Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
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#1Yinling Jin (HIT: Harbin Institute of Technology)H-Index: 1
#2Hongze Fang (HIT: Harbin Institute of Technology)H-Index: 11
Last. Jingjie Guo (HIT: Harbin Institute of Technology)H-Index: 29
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Abstract null null To modify the coarse primary Mg2Si phase and improve mechanical properties of Mg2Si reinforced aluminum matrix composites, hypereutectic Al–18Mg2Si composites with different Eu contents were fabricated by permanent mold casting and extrusion followed by heat treatment. Results show that the as-cast Al–18Mg2Si composites consisted of primary Mg2Si and eutectic structure (Al + Mg2Si). Eu addition can obviously modify the primary Mg2Si morphology from dendrite to flat truncated o...
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#1Luyun Huang (XJTU: Xi'an Jiaotong University)H-Index: 2
#2Ping Huang (XJTU: Xi'an Jiaotong University)H-Index: 23
Last. F. Wang (XJTU: Xi'an Jiaotong University)H-Index: 5
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Abstract null null Work-hardening behavior could be rarely observed in amorphous alloys during plastic deformation because the dilation and softening effect often occur in shear bands. Here, we proposed a novel mechanism to realize an excellent work-hardening rate null null null null null ( null null R null = null null dσ null de null null null ) null null null null null in ZrCu/NiNb amorphous/amorphous nanolaminates (A/ANLs), which is investigated by in-situ uniaxial micro-pillar compression te...
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#1Yang Wang (HIT: Harbin Institute of Technology)H-Index: 31
#2Qiang Liu (HIT: Harbin Institute of Technology)H-Index: 13
Last. Wen Wang (HIT: Harbin Institute of Technology)H-Index: 22
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Abstract null null In this study, the researchers constructed nacre-inspired 2024Al/B4C composites with a lamellar-interpenetrated structure using pressured infiltration of alloy melt into freeze-cast B4C scaffolds, and investigated their dynamic and ballistic properties. The defects such as pores or cracks were hardly observed, and a few intermetallic compounds (IMCs) were contained within the alloy matrix. Because of strain-rate hardening and alloy matrix melting, the dynamic compressive stren...
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#1XingFu Li (KMUST: Kunming University of Science and Technology)H-Index: 1
#2W.F. Lu (Tongji University)
Last. J.H. Yi (KMUST: Kunming University of Science and Technology)H-Index: 6
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Abstract null null Zr50-x/2Co50-x/2Alx (x = 0, 4, 7) alloys fabricated by water-cooled copper mold casting yields excellent mechanical properties like high strength and large plasticity. Al can reduce the stacking fault energy and simultaneously improve strength and yield strength of the alloys. With increasing Al content, the effect of grain refinement strengthening, solid solution strengthening and second phase precipitation strengthening are enhanced to a certain extent. The good plasticity o...
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#1Yubi Gao (LUT: Lanzhou University of Technology)H-Index: 4
#2Yutian Ding (LUT: Lanzhou University of Technology)H-Index: 4
Last. Jiayu Xu (LUT: Lanzhou University of Technology)H-Index: 3
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Abstract null null In situ electron backscatter diffraction (EBSD) has been demonstrated as a powerful tool for tracking the microstructural evolution of alloys; however, it has not yet been applied to analyse the evolution of annealing twin boundaries (TBs) during loading. In this study, we investigated the evolution of annealing TBs and their interaction with dislocations in Inconel 625 alloy under room-temperature uniaxial tension using in situ EBSD and ex situ transmission electron microscop...
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#1Ming-Song Chen (CSU: Central South University)H-Index: 37
#2Quan Chen (CSU: Central South University)H-Index: 1
Last. Guan-Qiang Wang (CSU: Central South University)H-Index: 6
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Abstract null null In the authors’ previous study, a novel double-stage heat treatment method including an aging treatment and a cooling recrystallization annealing treatment (CRT) was proposed [1]. This method can evenly refine the deformed coarse grains of an initial solution-treated deformed GH4169 alloy. This study focuses on investigating the role of this method on the microstructural evolution and properties of an initial aged deformed GH4169 alloy. For the initial aged deformed GH4169 all...
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Abstract null null This study investigated mechanical properties and texture evolution of Cu-xZn alloys (x = 5, 15, 20, 30) processed by multi-directional forging (MDF) up to 6 passes at ambient temperature. Mechanical properties were examined via shear punch and hardness tests. Optical microscopy and high-resolution scanning electron microscopy (HR-SEM), equipped with electron backscattered diffraction (EBSD) detector were also utilized to characterize the detailed microstructures and texture e...
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#1Prithvi D. Awasthi (UNT: University of North Texas)
#2Priyanka Agrawal (UNT: University of North Texas)H-Index: 8
Last. A. Imandoust (UNT: University of North Texas)H-Index: 15
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Abstract null null C103 is a refractory-based niobium alloy for high temperature applications in aerospace. This paper aims to evaluate the compatibility of C103 alloy as a choice of material for laser-based additive manufacturing (AM) technologies. Crack free AM specimens with relative densities of greater than 99% were successfully fabricated via laser powder bed fusion (L-PBF) method with horizontal and vertical build orientations. Static strength levels of the stress-relieved specimens excee...
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#1Yan Long (SCUT: South China University of Technology)H-Index: 7
#2Jirong Yang (SCUT: South China University of Technology)
Last. Kai Su (SCUT: South China University of Technology)H-Index: 2
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Abstract null null A CoFeMnNi medium-entropy alloy (MEA) was prepared by mechanical alloying (MA) and spark plasma sintering (SPS). The mechanically alloyed powders were sintered to near-full density and the as-sintered material consists of FCC matrix comprising a minor distribution of oxide particles. A high twin density is observed in MEA bulk samples. The twins are not generated during high-energy ball-milling but formed in the recrystallized grains during the sintering process. Compressive a...
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