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Last. Yong ZouH-Index: 12
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Abstract Friction stir welding (FSW) is conducted for 5052-H112 aluminum alloy. The stress-strain curves of joint and base metal (BM) in air and NaCl aqueous solution with different concentration were tested by using slow strain rate tension (SSRT) tester. The effects of chloride ions (Cl-) concentration on corrosion behaviors of joint and BM were also studied by using single cycle polarization and immersion measurements. Results showed that the BM is more susceptible to stress corrosion crackin...
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#1Heena DuggalH-Index: 4
Last. Sanjeev GautamH-Index: 18
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Abstract The systematic X-ray absorption near edge structure (XANES) investigation at Au L3-edge was made on Au in metallic form and its compounds in various definite oxidation states, viz., Au(OH)3, AuCl, AuCl3, HAuCl4, AuI and AuBr3. The spectra have been recorded with linearly polarized photon beam from 2 GeV INDUS-2 Synchrotron source. All XANES spectra were deconvoluted to configure the energy positions of bound and continuum state transitions. With respect to the reference metallic Au, the...
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#1Changqin ZhangH-Index: 4
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Abstract In this paper, amorphous Fe78Si9B13 ribbons were used to decolorize Acid Orange Ⅱ solutions with different initial concentrations at different temperatures. The effects of reaction temperature on the decolorization process were investigated, and the activation energies for the decolorization reaction in the temperature range of 25°C-50°C were obtained based on the Arrhenius equation. It was found that the reaction temperature had different influence rules for dye solutions with differen...
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#1Tianxiong Chen (Yanshan University)H-Index: 1
#2Xue Liu (CAEP: China Academy of Engineering Physics)H-Index: 4
Last. Xiaoying Wang (CAEP: China Academy of Engineering Physics)H-Index: 1
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Abstract A self-assembled Cu–Fe–Mn composite coating with a two-stage phase separation feature was prepared by laser cladding Cu and Mn mixed powders on a 316 L stainless steel plate. The hierarchical phase separation feature and structural evolution of the coating were systematically investigated. The microstructure of the coating exhibits by dendrites of (Fe, Mn)-rich phase and nanosized (Cu, Mn)-rich phase embedded within the matrix of the (Cu, Mn)-rich phase. During the cladding process, the...
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#1Yang Liu (CSU: Central South University)H-Index: 4
Last. Lun Yang
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Abstract In this study, a high strength aluminum-magnesium interface structure was prepared by spark plasma sintering using powder metallurgy. Effects of sintering pressure on the Al-Mg interfacial structure and bonding strength were investigated. The mechanism of formation and evolution of the interface were obtained from characterizing the interface. Results from microstructural observations indicate that interfacial structure changes from solid layers to liquid layers with an increase in sint...
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#1Haiqiang BaiH-Index: 1
#2Lisheng ZhongH-Index: 8
Last. Yunhua XuH-Index: 19
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Abstract To enhance the strength of iron-based alloys, a novel vanadium-vanadium carbide/iron (V-V8C7/Fe) core-shell rod-reinforced iron-based composite is designed and prepared via a two-step in-situ reaction at 1150 °C × 5 min + 1100 °C × (4, 6, 8, 10 h). The V-V8C7/Fe core-shell rod consists of a ductile V-core and a gradient-structured V8C7/Fe-shell. The phases of the composite are V, V2C, V8C7, α-Fe, and P-rich phases. When the ratio (K) of the volume of V8C7/Fe-shell to the volume of the V...
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#1Moslem Paidar (IAU: Islamic Azad University)H-Index: 10
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Friction stir spot welding (FSSW) is one of the effective solid-state welding strategies to achieve good joint efficiency between dissimilar aluminum alloys. However, the formation of tool-induced keyhole (a stress raiser) is inevitable during the FSSW process. This study explores the possibility of eliminating keyhole with the aim of improving the properties of the joint by Modified Friction Stir Clinching (MFSC) process. The tensile-shear and cross-tension strengths of the MFSC joints are 83% ...
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#1Z.H. Tan (CAS: Chinese Academy of Sciences)
#2Xiaoguang Wang (CAS: Chinese Academy of Sciences)H-Index: 31
Last. X.F. Sun (CAS: Chinese Academy of Sciences)H-Index: 9
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Abstract The oxidation behavior of a novel low-cost single crystal superalloy was thoroughly studied at high temperature. Three distinctive stages were observed in the oxidation kinetics curve, which corresponded to the different oxide film structures and oxidation mechanisms. The outer NiO grains, several spinels as well as inner Al2O3 layer took shape at first stage while the oxidation dynamics obeyed cubic law. However, the NiO particles began to spall off the specimen surface and the continu...
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#1Guangxue Zhou (HIT: Harbin Institute of Technology)H-Index: 2
#2Langping Wang (HIT: Harbin Institute of Technology)H-Index: 11
Last. Yonghao Yu (HIT: Harbin Institute of Technology)H-Index: 6
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Abstract Dual magnetron reactive high power impulse magnetron sputtering (dual magnetron R-HiPIMS) provides a deposition process favor for low temperature crystallization of high quality dielectric films. However, lack of detailed measurements is blocking the accurate understanding of the resulting film quality to the plasma parameters. In this work, a dual magnetron R-HiPIMS discharge with Al in a fixed Ar/O2 mixture has been investigated by means of time-resolved Langmuir probe and energy-reso...
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#1Olesya LaputH-Index: 1
#2Daniil ZuzaH-Index: 1
Last. Irina KurzinaH-Index: 5
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Abstract The investigation of surface physicochemical and biological properties of polylactic acid and hydroxyapatite and composite materials based on them modified by Ag 1 × 1015 ion/cm2 and 1 × 1016 ion/cm2 40 keV ion implantation is presented. X-ray analysis reveals that ion implantation of the above mentioned materials leads to crystallite size and degree of crystallinity increase. The intensity of -С = О line is found by IR-spectroscopy to be decreased that is associated with surface layer ...
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