Effect of Ultrasonic Shot Peening on the Cavitation Erosion Resistance of SLM316L Stainless Steel by WANG Zenan, CHENG Feng, WANG Shuo, SUN Jie

“…In order to investigate the effect of ultrasonic shot peening on the cavitation erosion resistance of SLM316L stainless steel, the surface of SLM316L stainless steel was treated for varying durations (5, 25 and 45 min) using an ultrasonic shot peening apparatus.Subsequently, cavitation tests were conducted on both the untreated and shot-peened samples by means of an ultrasonic vibration device.The phase composition, residual stress, microhardness, surface morphology evolution and micro morphology of the samples were analyzed using X-ray diffraction (XRD), indentation tester, digital microhardness meter, digital 3D video microscope and scanning electron microscopy (SEM).Results showed that the SLM316L stainless steel sample and the ultrasonic shot peening sample exhibited different cavitation behaviors.Residual stresses were introduced into the surface of the samples by ultrasonic shot peening, the surface microstructure was refined, and the surface hardness was enhanced,which led to the mitigation of grain deformation caused by cavitation impacts.As a result,crack initiation was resisted,and cavitation damage was delayed.Additionally, the samples that were subjected to 25 and 45 min of shot peening underwent a transformation from austenite to martensite, and the martensite phase was found to further enhance the cavitation erosion resistance of the shot-peened specimens due to its superior hardening characteristics.The analysis of the weight loss curves and surface morphology during the cavitation process revealed that the 45 min shot-peened sample was found to exhibit the best cavitation erosion resistance.The cavitation erosion resistance of SLM316L stainless steel was effectively improved by the ultrasonic shot peening process, and it was demonstrated that extending the peening duration could further optimize the cavitation erosion resistance of the shot-peened samples.…”
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Crystal Plasticity Elastic-Plastic Rate-Independent Numerical Analyses of Pollycrystalline Materials by Marta Wójcik, Andrzej Skrzat, Feliks Stachowicz, Emil Spišák

“…Macroscopic analyses of plastic forming processes give only the overall description of the problem without the consideration of mechanisms of plastic deformation and the microstructure evolution. For the consideration of these processes, numerical simulations within crystal plasticity include the change of texture, anisotropy, and strain hardening of the material are used. …”
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Acoustic absorption of 3D printed samples at normal incidence and as a duct liner by Jamois Alexis, Dragna Didier, Zieliński Tomasz G., Galland Marie-Annick

“…The materials have a periodic microstructure, consisting either of a single network of spherical or cubic cavities connected by cylindrical channels or of a double-nested network. …”
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Electric pulse improving the plasticity of the HAl66-6-3-2 alloy by promoting the formation of specific oriented texture by Bobo Lu, Kai Tang, Mingxia Wu, Yi Yang, Gang Yang

“…The study demonstrates EPT can promote the movement of atoms and regulate the microstructure, which is of great significance for the subsequent control of alloy properties.…”
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Improving dynamic mechanical properties and inhibiting adiabatic shear bands of the molybdenum single crystal by adding Nb element by Zhenchuan Li, Benqi Jiao, Weiwei Zhang, Wen Zhang, Jianfeng Li

“…In this work, a new approach was proposed to improve mechanical properties and inhibit the formation and propagation of the adiabatic shear band in the pure Mo single crystal. The microstructure evolution of the pure Mo and Mo-Nb single crystals subjected to the dynamic load was investigated by EBSD and TEM. …”
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The Effect of Rare Earth on the Precipitated Phases During Aging Process of T91 Heat-resistant Steel by Li　Gen, Liu　Jun, Wang　Shijun, Jia　Lei, He　Xikou

“…However， the creep performance degradation caused by phase precipitation and microstructure instability during long-term service is still the key bottleneck limiting its service life.This study systematically investigates the effects of rare earth （RE） w［Ce+Y］ addition （0%， 0.027%， and 0.064%） on the precipitation phases evolution of T91 steel during aging at 550 ℃. …”
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Interfacial reaction and mechanical properties of Sn–Bi Cu core solder joints by Shijie Ouyang, Zhi Li, Mingdong Bao, Yingwen Cao, Guoqi Hu, Xuebo Xu

“…Sn–Bi solder, considered to be a lead-free solder that can be used in the packaging of heat-sensitive devices, has been attracting increasing attention from researchers due to its excellent mechanical properties. The microstructure evolution, interfacial reaction, shear properties, and fracture behavior of Sn–Bi Cu core solder joints during reflow and thermal aging processes are investigated in this study. …”
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Optimizing Dielectric Constant in Tetragonal BaTiO3 Via Densification, Tetragonality, and Grain Growth Kinetic with Sintering Temperature by J. Lee, J. Jeong, J. Jung, H. Jeong

“…Their densification and microstructure evolution were examined to determine the dielectric constant as a function of temperature (25-150°C) and frequency (102-107 Hz). …”
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Massively parallel phase field fracture simulations on supercomputers: towards multi-billion degree-of-freedom computations by Zakaria Chafia, Julien Yvonnet, Jérémy Bleyer, Stéphane Vincent, Simon El Ouafa

“…The methodology is applied to quasi-brittle simulations, involving alternate solving of large linear systems and incremental evolution. The applications presented to illustrate the parallel framework involve crack initiation and propagation in strongly heterogeneous materials with a detailed description of the microstructure. …”
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Mechanochemical Process in the TiO2-Al-C Mixture to produce Al2O3-TiC by Fatemeh Homayooni, Nader Setoudeh, Abbas Mohassel, Fatemeh Heidari, Mohammad Sajjadnejad

“…The signs of these phases were also observed in the XRD patterns of the solid residues after DTA analysis. The evolution of the microstructures indicated the decreasing in the particle size due to ball milling and the change of morphology of the microstructure due to occurrence of chemical reaction. …”
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Carbonation Characteristics of Alkali-Activated Blast-Furnace Slag Mortar by Keum-Il Song, Jin-Kyu Song, Bang Yeon Lee, Keun-Hyeok Yang

“…The most important factor for a durability evaluation is the degree of carbonation resistance, and AAS is known to show lower performance than OPC. …”
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Effect of Forging Parameters on Low Cycle Fatigue Behaviour of Al/Basalt Short Fiber Metal Matrix Composites by R. Karthigeyan, G. Ranganath

“…Evaluation of the fatigue properties showed that the forged samples had higher values than those of the as cast counterparts. …”
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Influence of Nickel Percentage on Lattice Structure and Mechanical Strength in Al-Si Alloy by Shakib Alsowidy, Belqueis Al-Asry, Adnan Alnehia

“…The evaluation was performed using X-ray diffraction (XRD) and Vickers hardness (HV) tests. …”
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White matter structural changes in the visual pathway of thyroid-associated ophthalmopathy patients: a free water and multi-shell diffusion imaging study by Jiaqi Yao, Jiaqi Yao, Xinjian Lu, Jingxu Ma, Lu Hao, Ying Liu, Xiaopan Huang, Jun Liu, Boding Tong

“…BackgroundCompared to single-shell diffusion tensor imaging (DTI), free water (FW) and neurite orientation dispersion and density imaging (NODDI) offer a more comprehensive evaluation of microstructural alterations in cerebral white matter (WM), particularly in detecting crossing fibers. …”
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Tailoring the Anisotropic Oxygen Transport Properties in Bulk Ceramic Membranes Based on a Ruddlesden–Popper Oxide by Applying Magnetic Fields by Giamper Escobar Cano, Motohide Matsuda, Zhijun Zhao, Frank Steinbach, Bernd Breidenstein, Hilke Petersen, Andreas Graff, Marc Widenmeyer, Anke Weidenkaff, Armin Feldhoff

“…Evaluation of the texturing effect on the oxygen permeation performance shows that the a,b‐plane textured Nd2NiO4+δ bulk membrane achieves the highest oxygen permeation fluxes between 1023–1223 K. …”
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Comparison of Aging Performances and Mechanisms: Super-Durable Fire-Resistant “Xuan Paper” Versus Chinese Traditional Xuan Paper by Li-Ying Dong, Ying-Jie Zhu, Jin Wu, Han-Ping Yu

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GH4096 superalloy high-temperature oxidation and corrosion behaviors by Amin Wang, Jingjie Dai, Rui Fu, Hongxia Zhang, Caixia Sun, Dan Li

“…To evaluate the stability and adaptability in complex marine environments, high-temperature oxidation, hot corrosion with NaCl–Na2SO4 deposits, and high-low temperature alternating corrosion behaviors of GH4096 superalloy were investigated in this work, along with the microstructure evolution and corrosion kinetics. …”
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Experimental study on fracture properties of steam-cured high-strength concrete by Xiaoqian Wang, Xinyang Li, Yuzhi Chen, Wenlei Xu, Xi Zuo

“…The activity of the HSC fracture process was reflected by the AE ringing count, and the damage evolution law of the fracture process was evaluated using the b -value. …”
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Structural integrity and hybrid ANFIS-PSO modeling of the corrosion rate of ductile irons in different environments by Ukoba K., Akinribide O.J., Adeleke O.

“…The influence of microstructure on the corrosion resistance of three DI specimens was investigated. …”
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Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles by Renjin J Bright, P. Hariharasakthisudhan

“…The composites with Cu powder premixed Metakaolin particles showed improvement in tensile strength, ductility, compressive strength and hardness. The microstructure evaluation of the composites was performed by Scanning Electron Microscope (SEM) and Optical Microscope (OM). …”
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