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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Dry linear reciprocating wear behavior of molybdenum-reinforced SS316 laser claddings deposited by laser directed energy deposition by C.R. Aprameya, Sharnappa Joladarashi, M. R. Ramesh

“…The worn scar was examined using a 3D non-contacting profilometer. Microstructure and wear mechanism were analyzed using Field emission scanning electron microscopy (FE-SEM). …”
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Influencing Factors of Shear Instability Characteristics of Rock Joints: Experimental and Theoretical Study by Hangyu Dong, Baohua Guo, Qing Ma, Kai Si, Hongjian Wang

“…The mineral composition and microstructure also have a certain influence on the shear mechanical properties of rock joints. …”
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Experimental study on chloride transport of blast-furnace slag blended concrete with crystalline admixture under seawater wet dry cycle by Peng He, Lingwei Liu, Jianying Yu

“…Moreover, CA could enhance the corrosion resistance of 100 % OPC and 50 % BFS concrete, and improve the microstructure. However, the 50 % BFS concrete with CA could only observe small pores and no obvious cracks. …”
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The method for impact analyzing of duplex plasma nitriding and DLC coatings on the cyclic performance of 16MnCr5 piston pin steel under plain and fretting fatigue testing by Mobin Dizisaz, Mohammad Sadegh Aghareb Parast, Mohammad Azadi

“…The current analysis studied the analyzing method and experimental datasets of the plain and fretting fatigue lifetime of 16MnCr5 steels and the impact of duplex plasma nitriding and diamond-like carbon (DLC) coatings. …”
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Optimization of preparation parameters and testing verification of carbon nanotube suspensions used in concrete by Huang Shanxiu, Li Huikuan, Gao Fenghui, Guo Weijie, Guo Jiaqi

“…Scanning electron microscope analysis was used to investigate the improvement in the microstructure of the concrete by CNTs. …”
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Robotized hardfacing on high-strength steels: determination of impact properties with different heat inputs by Ákos Meilinger, Gábor Terdik

“…Heat input can alter the microstructure of the heat-affected zone, potentially reducing the load-bearing capacity due to the penetration depth of the hardface layer or the buffer layer. …”
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Deformation anisotropy and lamellar α re-orientation of TC17 alloy under the different slip modes of HCP structure by Cong Li, Jiao Luo

“…Deformation anisotropy and re-orientation for α phase during isothermal compression of TC17 alloy with basketweave microstructure were investigated systematically by quantitative analysis the influence of tilt angle between compression axis and c-axis on LABs density, rotate factor and ratio of activated slip system. …”
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Traditional Chinese medicine Yisui Tongjing relieved neural severity in experimental autoimmune neuritis rat model by Zhang E, Li M, Zhao J, Dong Y, Yang X, Huang J

“…Erli Zhang,1 Mingquan Li,2 Jianjun Zhao,2 Yuxiang Dong,1 Xueqin Yang,1 Jingbo Huang1 1Department of Traditional Chinese Medicine, The First Bethune Hospital of Jilin University, 2Department of Encephalopathy, The First Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, People’s Republic of China Objective: To study the effect of Yisui Tongjing (YSTJ) prescription on motor nerve conduction velocity (MNCV) and microstructure of the sciatic nerve in experimental autoimmune neuritis (EAN) rats, the Guillain–Barré syndrome classic animal models.Materials and methods: In this study, we established an EAN model in Lewis rats by immunization. …”
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Multi-response optimization of friction stir welding process parameter of AA 5083 with Taguchi-VIKOR approach by Murahari Kolli, Chendrasekhar Sunnapu, Nageswara Rao Medikondu

“…The AA 5083 FSW joint’s macro and microstructure examination, tensile strength (TS), % of elongation (%EL), impact energy (IE), micro-hardness (MH), and wear rate (WR) were considered performance characteristics. …”
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Enhancing output and durability of polymer-based piezoelectric vibration energy harvesters using mechanical metamaterials by Shunta HASEGAWA, Kota MORISHITA, Yuya TANAKA, Gen HASHIGUCHI, Hiroshi TOSHIYOSHI, Takaaki SUZUKI

“…However, concerns regarding decreased yield during the deposition process of the thin-film piezoelectric layer and potential compromises in the microstructure strength have been identified. In response to these challenges, this study focuses on redesigning PVEHs to improve the yield and structural integrity. …”
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Experimental study on silty sand contains environmental and friendly construction materials and long-term and short-term Behavior: Micro and macro study by Mahmoud Ghazavi, Mobina Taslimi Paein Afrakoti

“…Additionally, ultrasonic pulse velocity (UPV) and scanning electron microscopy (SEM) tests examined the microstructure of the improved soil. Results showed that the optimum PG and KF contents were 2.5 % and 1 % by soil weight, respectively. …”
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MECHANICAL PROPERTIES OF BUCKWHEAT GRAIN STORED UNDER SNOW by Mar'in V.A., Vereshchagin A.L., Bychin N.V.

“…The study on mass fraction of grain processing products has been conducted. The microstructure of the core surface of defective grains and that of sound grains is given; their mechanical characteristics have been investigated. …”
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A Development of the Rosenthal Equation for Predicting Thermal Profiles During Additive Manufacturing by William Keeley, Richard Turner, Bashir Mitchell, Nils Warnken

“…The thermal gradients also have a large impact on material properties by controlling the microstructure formed. Thermal modelling methods are often based on numerical solutions of the heat conduction equation. …”
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Mechanical Properties and Thermal Stability of TiN/Ta Multilayer Film Deposited by Ion Beam Assisted Deposition by Hongfei Shang, Jian Li, Tianmin Shao

“…TiN/Ta multilayer film with a modulation period of 5.6 nm and modulation ratio of 1 : 1 was produced by ion beam assisted deposition. Microstructure of the as-deposited TiN/Ta multilayer film was observed by transmission electron microscopy and mechanical properties were investigated. …”
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The Effect of Grouper Bone Nano-Calcium (GBN) and Medium-Chain Triglyceride (MCT) Supplementation on the Ovariectomized Rats by Pipin Kusumawati, Yudi Pranoto, Priyanto Triwitono, Fourier Dzar Eljabbar Latief

“…The test parameters conducted encompassed the evaluation of the rat’s body weight, levels of calcium, phosphorus, and alkaline phosphatase in rat blood serum, examination of the microstructure of rat tibiae by histomorphometry and femora bones by means of 3D micro-CT image analysis, and assessment of the strength of rat femora bones by the three-point bending. …”
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Efficacy of Pluchea dioscoridis leaf extract against pathogenic Candida albicans by Nessma Ahmed El Zawawy, ElSayed ElSayed Hafez

“…Microscopic observations using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were made to determine the major alterations in the microstructure of C. albicans. Quantitative changes in phospholipase, hemolysin, and secreted aspartyl proteinase (SAP1 and SAP10) genes expression as virulence factors were analyzed using real-time polymerase chain reaction (RT-PCR). …”
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Degradation of Shotcrete Materials Subjected to Sulfate and Chloride Attack in Varying Exposure Regimes by Ruiqiang Zhao, Lihao Xu, Jun Yang, Yang Zou, Zhongya Zhang

“…Mercury intrusion porosimetry (MIP) analysis, scanning electron microscopy (SEM), and X-ray diffraction (XRD) tests reveal that these consequences were strongly related to the refinement of microstructure resulted from pozzolanic reactions and hydration kinetics.…”
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Lightweight thermally insulating fired clay bricks enhanced with chitosan-based clay nanocomposites for sustainable construction by M. Abdelhamid Shahat, Wafaa Soliman

“…SEM micrographs confirmed the development of a more porous microstructure, and TGA data demonstrated enhanced thermal stability. …”
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Simultaneously improving strength, ductility and formability in 2195 Al-Li alloy components via pre-aging treatment by Sun Kuokuo, Zhan Mei, Fan Xiaoguang

“…Achieving higher limit drawing ratio (LDR=2.628) and average plastic ratio (r̄=1.55) enhances the drawability of the Al-Cu-Li alloy sheets. Microstructure analysis reveals that the simultaneous increase in strength, ductility and formability is attributed to the fine and well-dispersed coherent nanoprecipitates, interacting with dislocations, weaking local stress concentration, serving as dislocation sources, promoting dislocation movements. …”
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