A physically-based constitutive model considering mixed dynamic recrystallization for a near-α titanium alloy during hot deformation by Jie Zhao, Yingming Tu, Binjun Zhou, Kehuan Wang, Gang Liu

“…The mixed dynamic recrystallization of titanium alloys during hot deformation is rarely described in the existing microstructure evolution models and constitutive models. …”
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Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel by Ming-wei Guo, Zhen-hua Wang, Ze-an Zhou, Shu-hua Sun, Wan-tang Fu

“…The hot deformation behavior was investigated using stress-strain curve analysis, processing maps, and so forth. The microstructure was analyzed through electron backscatter diffraction analysis. …”
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Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability by Fujian Guo, Zhimin Peng, Guangyi Lu, Wenle Liu, Guoqing Li, Pan Zhang, Chengjia Shang

“…The microstructure stability of the material was analyzed by a separated Hopkinson pressure bar (SHPB) experiment. …”
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COMPARISON OF Mo COATING DEPOSITED BY TWAS AND APS SinplexPro THERMAL SPRAY TECHNIQUES by Šárka Houdková, Jakub Antoš, Petra Šulcová, Kateřina Lencová, Jan Hajšman, Karolína Burdová, Josef Duliškovic

“…The wear resistant Mo coatings were deposited using SmartArc Electric Arc Wire Spray System and advanced SinplexPro high throughput atmospheric plasma spray gun. The coatings were analyzed in terms of microstructure, mechanical properties and tribological characteristics, including wear rate and wear mechanism. …”
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Effect of rare earth elements La and Ce on corrosion resistance of low alloy steel by Da Wei, Qing Li, Renzheng Zhu, Xiaojia Yang, Longfei Song, Guowei Yang, Xinyu Wang, Xuequn Cheng, Xiaogang Li

“…Corrosion monitoring sensors were used to collect corrosion data in 0.5 wt% NaCl solution(pH = 4). The microstructure and inclusions of low-alloy steel with different rare earth(RE) contents were analyzed. …”
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Innovative Solid-State Recycling of Aluminum Alloy AA6063 Chips Through Direct Hot Rolling Process by Mauro Carta, Noomane Ben Khalifa, Pasquale Buonadonna, Rayane El Mohtadi, Filippo Bertolino, Mohamad El Mehtedi

“…The bulk material underwent the same rolling schedule to allow comparison of the samples and assess the process, in terms of mechanical properties and microstructure. All the rolled samples were tested by tensile and microhardness tests, whereas the microstructure was observed by an optical microscope and the EBSD-SEM technique. …”
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Study on the Corrosion Behavior of Rare Earth / Niobium Microalloyed Steels in Marine Atmospheric Environments by ZHANG Xian, HU Hong-yi, GONG Li, WANG Zhi-yuan, PENG Ding, ZHU Chang-jin, WEI Wen-zhui, WU Kai-ming

“…For providing the data support to design and develop microalloyzed steels, the corrosion behavior of rare earth microalloyed steels and niobium microalloyed steels in marine atmospheric environments was investigated by the means of surface microstructure characterization, alternative wet/dry cycle test, neutral salt spray test and electrochemical measurements.Furthermore, the corrosion resistance of microalloyed steels was compared and analyzed.Results showed that the microstructure of microalloyed steels consisted of ferrite and pearlite, and niobium microalloying favored the refinements of the grains and hindered the formation of pearlite.The rust layer was composed of for γ-Fe2O3 and γ-FeOOH, which had no obvious protective effect to the substrate.With prolonging exposure periods, γ-FeOOH gradually transformed to α-FeOOH, enhancing the protective effect to the substrate.The corrosion current density of rare earth/niobium microalloyed steels declined, and thus the corrosion resistance of those two kinds of steels were improved.After a long period of corrosion, the grain refinement of niobium microalloyed steel was beneficial to increase the densification of the surface rust layer and the content of α-FeOOH was relatively high, then further the corrosion rate was reduced.Hence, compared with rare earth microalloyzed steel, the niobium microalloyed steels presented a better atmospheric corrosion resistance.…”
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Microscopic phase evolution mechanism of lithium slag and fiber synergistically enhancing concrete toughness: Perspective of preventing coal-rock dynamic disasters through energy a... by Xuyang Bai, Junwen Zhang, Yulin Li, Zeyu Liu, Zhixiang Song, Yang Zhang, Xukai Dong, Shaokang Wu, Weizheng Xu, Xian Li

“…Furthermore, scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) was used to reveal the interfacial pore state and element distribution of the internal microstructure of concrete. The results show that PVA fiber bars can play the role of a “skeleton bridge” to improve the toughness of materials. …”
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In situ observation of collision and agglomeration behavior of non-metallic inclusions at steel/Ar and steel/slag interfaces by Minghui WU, Limei CHENG, Qing YIN, Xiaolin WU, Deli ZHAO, Abduvokhidovich JUMAEV Akhmadjon, Ying REN, Lifeng ZHANG

“…In situ observation of the evolution of high-temperature microstructure of materials can be performed using the HT-CSLM. …”
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Study on the Effect of High-Temperature Oxidation on the Phases of NiCrAlY-Cr Coatings with Different Thicknesses by CHEN Jiao, CHAI Yan, WANG Jianfeng, ZHANG Yao, CAO Zheng, FANG Ziwen, ZHANG Zhaolu, WANG Yuanyuan, HE Ni

“…In order to clarify the influence mechanism of Cr diffusion barrier layer on the oxidation performance of NiCrAlY coating under high temperature conditions， NiCrAlY coatings and NiCrAlY-Cr composite coatings with Cr barrier layers of different design thicknesses (50， 100，150 μm) were prepared using plasma spraying technology.The phase composition changes of the coatings were analyzed using X-ray diffraction(XRD)， while the microstructure of the coatings was examined using scanning electron microscopy (SEM).The element distribution in the coatings and oxidation layers was analyzed by energy dispersive spectrometer (EDS) attached to the SEM.The high-temperature oxidation behavior of NiCrAlY-Cr coatings with different thicknesses of Cr barrier layers was investigated.Results showed that both the deposited NiCrAlY and NiCrAlY-Cr coatings were mainly composed of Ni3Al.After oxidation at 850 °C for 30 h， both NiCrAlY and NiCrAlY-Cr coatings formed α-Al2O3 and Cr2O3 on their surfaces.When the oxidation temperature was increased to 950 °C， after 30 h of oxidation， all three NiCrAlY-Cr composite coatings with different Cr barrier layer thicknesses showed a dominant Ni3Al phase on their surfaces， along with the formation of α-Al2O3， Cr2O3， and characteristic diffraction peaks of NiCr2O4.After 65 h of oxidation at 850 °C， the main phases in NiCrAlY and NiCrAlYCr composite coatings with different thicknesses of Cr barrier layers were α-Al2O3， Cr2O3， NiCr2O4 and Ni3Al.With the extension of oxidation time to 100 h， the phases in the NiCrAlY coatings and NiCrAlY-Cr composite coatings with Cr barrier layers of different design thicknesses remained dominated by α-Al2O3， Cr2O3， NiCr2O4 and Ni3Al after oxidation at both 850 °C and 950 °C.The dense protective layer formed by α-Al2O3， Cr2O3 and NiCr2O4 on the surface of NiCrAlY-Cr coatings in high-temperature environments provided significantly better high-temperature oxidation resistance compared to NiCrAlY coatings.…”
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Strength and Microscopic Damage Mechanism of Yellow Sandstone with Holes under Freezing and Thawing by Huren Rong, Jingyu Gu, Miren Rong, Hong Liu, Jiayao Zhang, Hao Dong

“…In order to study the damage characteristics of the yellow sandstone containing pores under the freeze-thaw cycle, the uniaxial compression test of saturated water-stained yellow sandstones with different freeze-thaw cycles was carried out by rock servo press, the microstructure was qualitatively analyzed by Zeiss 508 stereo microscope, and the microdamage mechanism was quantitatively studied by using specific surface area and pore size analyzer. …”
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Scale‐free Spatio‐temporal Correlations in Conformational Fluctuations of Intrinsically Disordered Proteins by Haoyu Song, Jian Cui, Guorong Hu, Long Xiong, Yanee Wutthinitikornkit, Hai Lei, Jingyuan Li

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Experiment and Improvement Mechanism Analysis on the Mechanical Properties of Improved Chlorine Saline Soil by Semaierjiang Maimaitiyusupu, Cheng Zhao, Shichao Tao

“…Finally, the improvement mechanism of the above inorganic materials was microscopically analyzed by scanning electron microscope-energy dispersive spectrometer and X-ray diffraction tests. …”
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Effect of ultrasonic-assisted laser melting on the coating organization and properties of the central trough of scraper conveyor by Xiaofei Wang, Yongqing Zhou, Jing Li, Lei Shi

“…With the help of a metallurgical microscope, microhardness tester, scanning electron microscope, energy spectrum analyzer, ray diffractometer, friction and wear testing machine, and other means of characterization, the physical composition of the coating, macroscopic morphology, microstructure, hardness distribution, friction factor, and other parameters were analyzed and tested. …”
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Penetrating Power of High-Density Tungsten Fiber/Zr-Based Metallic Glass Matrix Composite by Minming Zou, Min Guo, Xianghai Ye

“…Then, the target was cut through the crater using a wire cutting machine into a sample with 80 mm × 40 mm × 20 mm, which was polished by different types of sandpaper. The microstructures were characterized and analyzed by SEM and TEM technology. …”
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Study on the Performance of Cold Spray Stainless Steel Coatings on Aluminum Alloy Surfaces by LIU Chenyang, JIANG Beiping, HUANG Guosheng, MA Li, JIANG Dan, MA Bojiang

“…To study the effects of cold spraying process parameters on the performance of 430 stainless steel coatings on the surface of 3003 aluminum alloy，430 stainless steel magnetic conductive coatings were prepared on the surface of 3003 aluminum cookware using three different cold spraying process parameters.The microstructure，bonding strength and resistance to thermal shock of the coatings were analyzed using scanning electron microscopy (SEM)，tensile testing and thermal shock testing.Results showed that when spraying 430 stainless steel coating on the surface of 3003 aluminum alloy，the degree of oxidation and bonding strength of coatings increased with higher spraying temperatures and pressures.The oxygen content of the coatings reached a maximum of 0.55%(mass fraction)，and the bonding strength achieved a maximum of 31.78 MPa.The porosity decreased as the spraying temperature and pressure increased，reaching a minimum of 1.2%.The electrical conductivity ranged from 1.07 to 1.27 MS/m.During thermal shock testing over 100 cycles，the bonding strength decreased from 31.78 MPa to 28.67 MPa，with only a small reduction，and the electrical conductivity decreased to 1.05 MS/m.These results demonstrated that increasing cold spraying temperature and pressure significantly improved the microstructure and bonding properties of the coatings，thereby enhancing their reliability during use.Additionally，the cold-sprayed coatings exhibited excellent characteristics，including high bonding strength，low porosity and low oxidation levels，making this process highly advantageous for the production of magnetic conductive coatings on cookware.…”
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Utilization of asphalt waste Dust and fly ash for sustainable mortar by Ayawanna Jiratchaya, Kingnoi Namthip, Sertsoongnern Pimchanok, Chaiyaput Salisa

“…The results from the compressive strength test were evaluated and compared under the different curing times for 3, 7, and 28 days in saturated limewater. The microstructures of testing samples were analyzed using different characterization techniques including X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (SEM-EDS). …”
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Thermal and Mechanical Properties of Geopolymers Exposed to High Temperature: A Literature Review by Rui He, Nan Dai, Zhenjun Wang

“…Secondly, the mechanical properties of residual compressive strength and stress-strain relationship of fly ash geopolymers and metakaolin geopolymers after high temperature were analyzed. Finally, the microstructure and mineralogical characteristics of geopolymers upon heating were interpreted according to the changes of microstructures and compositions. …”
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Wear Characteristics of Spark Plasma Sintered Lightweight High Entropy Alloys: A Short Review by Kazeem Oladiti Sanusi, Nicholus Malatji, Mxolisi Brendon Shongwe, Samson Olaitan Jeje, Lehlogonolo Rudolf Kanyane

“…The influences of spark plasma sintering (SPS) on microstructure and mechanical characteristics are analyzed. …”
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Compression Deformation Behavior of AZ81 Magnesium Alloy at Elevated Temperatures by Xiaoping Luo, Shue Dang, Li Kang

“…The microstructure evolution of the AZ81 magnesium alloy under high deformation was examined. …”
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