Sansan Shuai
Shanghai University
Ultimate tensile strengthSupercoolingMagnetic fieldTemperature gradientSpecific surface areaComposite materialEutectic systemMetallurgyMaterials scienceDiffractionSynchrotronCondensed matter physicsMagnesium alloyDirectional solidificationAlloyElectron backscatter diffractionPhase (matter)NucleationThermoelectric effectDendrite (crystal)AnisotropyMicrostructureMagnetostaticsThermodynamics
25Publications
9H-index
257Citations
Publications 29
Newest
#1Xiaodong Wang (SHU: Shanghai University)H-Index: 2
#2Chaoyue Chen (SHU: Shanghai University)H-Index: 19
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 8 authors...
In this work, the microstructural evolution, micro-crack formation, and mechanical anisotropy of the selective laser melted (SLM) carbon-free Mar-M509 Co-based superalloy were systematically studied under different linear energy densities (LED). Observation shows that the SLM Mar-M509 superalloy possesses a fully dense structure, whereas some micro-cracks exist along the building direction. The electron backscatter diffraction results reveal that dominant columnar grains tend to elongate along t...
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#1Pengchuan Wang (SHU: Shanghai University)H-Index: 1
#2Sansan Shuai (SHU: Shanghai University)H-Index: 9
Abstract The effect of the high magnetic field (MF) on the distribution of solute concentration during directional solidification of Al-Cu alloy under low growth speed was experimentally investigated. The amount of non-equilibrium eutectic is quantified via X-ray computed tomography (XCT) and demonstrated to reduce with the application of MF. Further, experimental results reveal that the MF alleviates the microsegregation and increases the average Cu concentration in solid solution, leading to t...
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#1Naying An (SHU: Shanghai University)
#2Sansan Shuai (SHU: Shanghai University)H-Index: 9
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 6 authors...
Additive manufacturing (AM) is a rapid prototyping technology based on the idea of discrete accumulation which offers an advantage of economically fabricating a component with complex geometries in a rapid design-to-manufacture cycle. However, various internal defects, such as balling, cracks, residual stress and porosity, are inevitably occurred during AM due to the complexity of laser/electron beam-powder interaction, rapid melting and solidification process, and microstructure evolution. The ...
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#1Xin Liu (SHU: Shanghai University)H-Index: 1
#2Sansan Shuai (SHU: Shanghai University)H-Index: 9
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 8 authors...
Abstract null null The influence of a longitudinal static magnetic field on microstructures and mechanical properties of Ni3Al-based alloy during directional solidification at the growth speed of 25 μm/s and 100 μm/s has been experimentally investigated. Results reflected that the utilization of a 0.5 T magnetic field refines the NiAl dendrites at both speeds of growth. When applying a high magnetic field, the columnar-to-equiaxed transition (CET) occurred at growth speed of 25 μm/s and dendrite...
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#1Longtao Liu (SHU: Shanghai University)H-Index: 3
#2Chaoyue Chen (SHU: Shanghai University)H-Index: 19
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 9 authors...
Abstract null null The in-situ strengthening approach has attracted increasing attention in the selective laser melting (SLM) of high-performance alloy. In the present work, the argon-nitrogen (Ar-N2) reactive atmosphere was introduced in the SLM of Ti6Al4V alloy to achieve in-situ strengthening. The microstructure evolution and mechanical performance were studied under various atmosphere conditions and laser processing parameters, respectively. The results show that the solid-solution of 871 pp...
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#1Yanan Wang (SHU: Shanghai University)
#2Sansan Shuai (SHU: Shanghai University)H-Index: 9
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 8 authors...
In this paper, the diversity of complicated dendrite microstructure and its evolution behavior during solidification in different magnesium alloys under various processing conditions were illustrated using synchrotron X-ray imaging technique. A variety of dendritic morphologies and branching structures were revealed, i.e., sixfold plate-like symmetric structure in Mg–Al-based structure, 12-branch structure in Mg–Zn-based alloys and 18-branch structure in Mg–Sn- and Mg–Ca-based alloys as well as ...
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#1Nie Jianwen (SHU: Shanghai University)H-Index: 1
#2Chaoyue Chen (SHU: Shanghai University)H-Index: 19
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 8 authors...
Abstract The columnar-to-equiaxed transition (CET) or the formation of stray grains in the laser melting deposition is the least desirable for the repair of single-crystal blades. In this work, the forced water-cooling was conducted on a single-crystal Rene N5 substrate during the direct energy deposition (DED). The single track remelting, one-layer, two-layer and eight-layer depositions were investigated to explore the grain growth mechanism. The solidification conditions of the DED process, in...
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#1Chenglin Huang (SHU: Shanghai University)H-Index: 1
#2Sansan Shuai (SHU: Shanghai University)H-Index: 9
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 6 authors...
Abstract The effect of static magnetic field (SMF) on the solid–liquid interfacial free energy of Al–Cu alloy system was experimentally determined by an improved grain boundary groove method. The value of the solid α-Al-liquid Al–Cu system was found to increase from (157.16±14.14) × 10−3J•m−2 to (206.65±18.60) × 10−3J•m−2, with an increasing rate of 31.5%, while that of the solid CuAl2-liquid Al–Cu system decreased by 46.17% from (280.70±25.26) × 10−3J•m−2 to (151.11±13.56) × 10−3 J•m−2 with SMF...
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#1Nan Cheng (SHU: Shanghai University)H-Index: 1
#2Rui Guo (SHU: Shanghai University)H-Index: 5
Last. Qiang Wang (Northeastern University (China))H-Index: 1
view all 9 authors...
Abstract This paper investigates the heterogeneous nucleation behavior of Al on single crystal Al2O3 substrate under the influence of static magnetic field (SMF). The nucleation temperature of the Al melt on the substrate was measured to decrease 2.9°C under SMF, i.e. the undercooling was enhanced with the application of SMF. Using electric back-scatter diffraction (EBSD) and high-resolution transmission electric microscope (HRTEM), the interfacial crystal orientation matching of Al/Al2O3 was fo...
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#1Liu Wei (SHU: Shanghai University)H-Index: 1
#2Chaoyue Chen (SHU: Shanghai University)H-Index: 19
Last. Zhongming Ren (SHU: Shanghai University)H-Index: 32
view all 12 authors...
Abstract The selective laser melting (SLM) technology is widely used for the manufacturing of Ti6Al4V alloy components in the biomedical and aerospace industries, and the residual pores are one of the significant defects obstructing its further application. X-ray computed tomography (XCT) technique was applied for the examination and analysis of the spatial and morphological features of pore defects, which will influence the tensile properties of the SLM-manufactured Ti6Al4V samples. Hence, the ...
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