Through-Thickness Residual Stresses, Microstructure, and Mechanical Properties of Electron Beam-Welded CA6NM Martensitic Stainless Steel after Postweld Heat Treatment by Sheida Sarafan, Priti Wanjara, Jean-Benoît Lévesque, Javad Gholipour, Henri Champliaud, Louis Mathieu

“…In this study, the integrity of electron beam- (EB-) welded CA6NM—a grade of 13% Cr-4% Ni martensitic stainless steel—was assessed through the entire joint thickness of 90 mm after postweld heat treatment (PWHT). The joints were characterized by examining the microstructure, residual stresses, global mechanical properties (static tensile, Charpy impact, and bend), and local properties (yield strength and strain at fracture) in the metallurgically modified regions of the EB welds. …”
Get full text

Forming quality, microstructure, and ductility-oriented mechanical performance of laser powder bed fusion processed Ni-based superalloy using different thermal input modes by Jingjia Sun, Dongdong Gu, Guangjing Huang, Jianfeng Sun, Menghuan Yin, Qi Wu

“…Thermal input modes significantly affect forming quality, microstructure, and mechanical properties of components fabricated by laser powder bed fusion (LPBF). …”
Get full text

MICRO-MECHANICAL PROPERTIES OF CEMENT AND SLAG COMPOSITES MEASURED BY NANOINDENTATION by Jiří Němeček, Jiří Němeček

Get full text

Thermal behavior of ground talc mineral by Balek V., Šubrt J., Pérez-Maqueda L.A., Beneš M., Bountseva I.M., Beckman I.N., Pérez-Rodríguez J.L.

“…Microstructure development and thermal behavior of ground talc mineral samples (from locality Puebla de Lillo, Spain) was characterized by X-ray diffraction, scanning electron microscopy(SEM),surface area measurements differential thermal analysis, thermogravimetry and emanation thermal analysis (ETA).A vibratory mill and grinding time 5 min. was used to prepare the ground talc sample. …”
Get full text

Continuous Production of Carbon Foam from Carbon Ore by Caleb Gula, Kody Wolfe, Jason Trembly, John Staser, Rudolph Olson, III, Eric Shereda, Yahya Al-Majali

Get full text

Effect of Steam Explosion Pretreatment on Nutritional and Antioxidant Properties of Rapeseed Oil by HUANG Ying, ZHENG Chang, ZHOU Qi, LIU Changsheng, LI Wenlin

“…In this study, rapeseed seeds were subjected to steam explosion pretreatment (0.4–1.4 MPa) and then cold-pressed into oil. The microstructures of the untreated and treated seeds were characterized by transmission electron microscopy (TEM), and the quality of rapeseed oil was comprehensively evaluated by measuring fatty acid profiles, functional components, and antioxidant capacity. …”
Get full text

Crack of a helicopter main rotor actuator attachment: failure analysis and lessons learned by L. Allegrucci, F. De Paolis, A. Coletta, M. Bernabei

“…Finally, the hydrogen content of the material was evaluated by the total hydrogen analysis. Microstructural and technological alloy characteristics were verified as well by using metallographic microscopy and hardness testing of the material.Macroscopic fracture surfaces evidences were characterized by the lack of any significant plastic deformations and by the presence of symmetry compared to the servo actuator axis. …”
Get full text

Transitions of deformation mechanisms in new metastable β-titanium Ti-1500G alloy by Yongqiang Ye, Yuanfei Han, Siyuan Zhang, Jianwen Le, Fu Chen, Jiaming Zhang, Chunyu Shen, Guangfa Huang, Shewei Xin, Weijie Lu, Di Zhang

“…Ultrahigh-strength titanium alloy (≥1250 MPa) innovation calls for an integrated framework combining novel deformation processing and microstructural control. However, a confluence of constitutive model and the deformation behavior of a new β-metastable titanium alloys (Ti-4Al-4Mo-4 V-5Cr-2Zr-1Nb, Ti-1500G) remained ambiguous, making the optimization of precise processing parameters is difficult clarified. …”
Get full text

Characterization of zirconium oxidecoating stabilized with cerium and yttrium oxide deposited on the bonding coating nickel chromium aluminum cobalt yttrium oxide by Mihailo Mrdak, Časlav Lačnjevac, Darko Bajić

Get full text

Comprehensive microstructural evolution analysis of AA5083-H116 alloy welded joints using pulsed GMAW and 80Ar19He1O2 shielding gas by Enrique Esteban Niebles-Nuñez, Jimy Unfried-Silgado, Jaime Elías Torres-Salcedo, Conrado R.M. Afonso, Antonio J. Ramírez

“…This study investigates the microstructural evolution of AA5083-H116 butt-welded joints produced by automated pulsed GMAW (GMAW-P) with an 80Ar-19He–1O2 shielding gas under varying heat inputs. …”
Get full text

Microwave dielectric properties and microstructure of high entropy (MgxCa0.6-xSr0.39Ba0.01)ZrO3 ceramics by Huei-Jyun Shih, Chin-Tung Shih, Ying-Chieh Lee

Get full text

The effect of bone marrow mesenchymal stem cell-derived extracellular vesicles on bone mineral density and microstructure in osteoporosis: A systematic review and meta-analysis of... by Ying Zhang, Xining Xu, Ximei Ren, Zhenghong Li

“…This study aims to evaluate the effects of BMSC-EVs on bone density, trabecular microstructure, and biomechanical properties in animal models of osteoporosis, providing evidence to support clinical translation and mechanism exploration.…”
Get full text

In-situ neutron diffraction revealing microstructure changes during laser powder bed fusion and in-situ laser heat treatments of 316L and 316L-Al1 by Claire Navarre, Shieren Sumarli, Florencia Malamud, Efthymios Polatidis, Markus Strobl, Roland E. Logé

“…In-situ non-destructive bulk characterization with neutron diffraction enables following the evolutionary process on larger scales, confirming the microstructure evolution phenomena within representative materials volume with greater statistics.…”
Get full text

The influence of precipitation on the microstructure, texture, and mechanical properties of high entropy FeNi1.5CrCu0.5 alloy following cold deformation and annealing by Farideh Salimyanfard, Mohammad Reza Toroghinejad, Mehdi Alizadeh, Parisa Moazzen, Vahid Yousefi Mehr

“…This study investigates the influence of precipitation on the microstructure, texture, and mechanical properties of the deformed and annealed FeNi1.5CrCu0.5 high-entropy alloy produced by vacuum induction melting. …”
Get full text

Mechanical and microstructural properties of nitinol fabricated on a preheated Ti6Al4V base plate using laser direct metal deposition (LDMD) process by Skhosane Samuel, Maledi Nthabiseng, Pityana Sisa

“…This study reports the microstructure and mechanical properties of Nitinol fabricated on a pre-heated Ti6Al4V plate using laser direct metal deposition (LDMD). …”
Get full text

Microstructure and composition evolution of SPPs in the oxide film of Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr during corrosion by Tianguo Wei, Xun Dai, Yi Zhao, Dong Wang, Yufeng Du, JiYun Zheng, Chongsheng Long, Chao Sun

“…The microstructure and composition evolution of SPPs in the oxide film of Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr alloy during aqueous corrosion at 360 °C is investigated by HRTEM. …”
Get full text

In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding by Hao Zhang, Yang Zhang

“…The Mo2FeB2 composite coatings with in-situ synthesized WC were fabricated using laser cladding technology onto AISI 1045 steel substrate using pre-placed method. The microstructure and phase were characterized using a field emission scanning electron microscope and X-ray diffractometry. …”
Get full text

The effect of NiAl content on the microstructure and properties of CoCrFeNi–NiAl–Nb pseudo-ternary triple-phase hypoeutectic high-entropy alloys by Zhongheng Diao, Zhenjun Gao, Jiankun Yang, Dongdong Xia, Huijun Kang, Guangwei Zhao, Bo Li, Dong Fang, Xicong Ye

“…Eutectic high-entropy alloys (EHEAs) have garnered significant attention due to their uniform and fine microstructure, exceptional casting properties, and broad range of industrial applications. …”
Get full text

Study on Optimization of Process Parameters and Microstructure Properties of Laser-Cladded AlCoCrFeNi_2.1 Eutectic High Entropy Alloy by LI Zansong, WANG Dongsheng

“…In order to investigate the effects of processing parameters on the microstructure and mechanical properties of the AlCoCrFeNi2.1 eutectic high entropy alloy(EHEA)， an orthogonal experimental design coupled with a comprehensive-scoring method was used to preliminarily identified the optimal laser cladding conditions.Among the tested combinations， Sample 4 (laser power 1 800 W， scanning speed 360 mm/min， powder-feed rate 2.1 r/min) and Sample 5 (laser power 1 800 W， scanning speed 420 mm/min， powder-feed rate 2.4 r/min)received the highest scores.These two specimens were then subjected to multi-pass， single-layer laser cladding， and their microstructures and mechanical properties were systematically characterized.Results showed that the laser-cladded AlCoCrFeNi2.1 EHEA coating was composed predominantly of dual FCC and BCC phases.In the multi-pass coating， Sample 5 displayed a surface dominated by uniform equiaxed grains，whereas Sample 4 exhibited a mixture of columnar and equiaxed grains with larger， irregular sizes.Further investigations showed that Sample 5 possessed superior microhardness and wear resistance:an average hardness of 323.7 HV1.0，an average friction coefficient of 0.64，and markedly lower wear rate (1.16×10－6 mm3∙N－1∙mm－1) and wear volume (14.4 mm3) than Sample 4.Accordingly， the optimal laser-cladding parameters for AlCoCrFeNi2.1 EHEA were determined to be a laser power of 1 800 W， a scanning speed of 420 mm/min， and a powder-feed rate of 2.4 r/min.…”
Get full text

The hydrogen production through enzymatic route using robust organic electrocatalyst graphite Flake-L.Rubellus by Purnami Purnami, Willy Satrio N, I.N.G. Wardana, Femiana Gapsari, Avita Ayu P.S, Sukarni Sukarni, Indra Mamad G, Tuan Amran T.A, Anwar Johari

“…Both microstructures cooperatively weaken the water intermolecular bond on the passing saltwater ion cluster. …”
Get full text