Results 111 to 120 of about 28,396 (238)

Effect of Adherend Thickness on Near-Field Ultrasonic Welding of Single-Lap CF/LMPAEK Thermoplastic Composite Joints. [PDF]

Materials (Basel), 2023
Guevara-Sotelo NS, Fernandez Villegas I.
europepmc   +1 more source

Nonterrestrial utilization of materials: Automated space manufacturing facility [PDF]

, 1982
Four areas related to the nonterrestrial use of materials are included: (1) material resources needed for feedstock in an orbital manufacturing facility, (2) required initial components of a nonterrestrial manufacturing facility, (3) growth and ...

core   +1 more source

Numerical Prediction of Deformation‐Induced Martensitic Transformation in Cold‐Sprayed Austenitic Stainless Steel

steel research international, EarlyView.
Cold spray deposition of stainless steel (grade: SS304) is evaluated for marine applications, with emphasis on martensitic transformation during impact. Analytical modeling, simulations, and experiments reveal that helium‐assisted spraying of fine powders promotes cooling below the martensitic start temperature, enabling up to ≈40% austenite to ...
Cal Vin Wong, K. R. Ramkumar, Sougata Roy, Victor K. Champagne, John J. Lee   +4 more
wiley   +1 more source

Ultrasonic Welding of PEEK Plates with CF Fabric Reinforcement-The Optimization of the Process by Neural Network Simulation. [PDF]

Materials (Basel), 2023
Alexenko VO, Panin SV, Stepanov DY, Byakov AV, Bogdanov AA, Buslovich DG, Panin KS, Tian D.   +7 more
europepmc   +1 more source

NASA Tech Briefs Index, 1977, volume 2, numbers 1-4 [PDF]

Announcements of new technology derived from the research and development activities of NASA are presented. Abstracts, and indexes for subject, personal author, originating center, and Tech Brief number are presented for ...

core   +1 more source

Non‐Destructive Inspection of TCPs Using Pulse‐Echo Ultrasound and X‐Ray Microcomputed Tomography Techniques

X-Ray Spectrometry, EarlyView.
ABSTRACT Thermoplastic composite pipes (TCPs) have potential applications in offshore oil and gas industries because of their strength, lack of corrosion, and flexibility. Designed for fluid transportation in high‐pressure and high‐temperature environments, manufacturing defects and operational loads can compromise their performance.
Marcella Grosso Lima, Ighor B. C. de Paula, Raquel Marques Cautivo, Cesar Giron Camerini, Marysilvia F. da Costa, Hector G. Kotik, Celio A. Costa, Alessandra S. Machado, Davi F. Oliveira, Ricardo T. Lopes, Gabriela Ribeiro Pereira   +10 more
wiley   +1 more source

Enhancement of ultrasonic vibration on friction stir welding of high-strength aluminum alloys: Effects on welding loads, microstructures, and mechanical properties of joints

Journal of Materials Research and Technology
In this study, a coaxial ultrasonic-assisted friction stir welding (UFSW) system with an automatic frequency tracking function was developed to enhance the effectiveness of ultrasonic vibration and to increase the integration and accessibility of the ...
Zhongxue Jia, Yunqiang Zhao, Guoqing Duan, Korzhyk Volodymyr, Haokun Yang, Zhe Liu, Zhicheng Lin, Yevhenii Illiashenko, Igor Krivtsun   +8 more
doaj   +1 more source

Double-Pulse Ultrasonic Welding of Carbon-Fiber-Reinforced Polyamide 66 Composite. [PDF]

Polymers (Basel), 2022
Zhi Q, Li Y, Shu P, Tan X, Tan C, Liu Z.
europepmc   +1 more source

Nine percent nickel steel heavy forging weld repair study [PDF]

The feasibility of making weld repairs on heavy section 9% nickel steel forgings such as those being manufactured for the National Transonic Facility fan disk and fan drive shaft components was evaluated.
Berry, R. F., Jr., Brooks, T. G., Gerringer, A. H., Young, C. P., Jr.   +3 more
core   +1 more source

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

Coloration Technology, EarlyView.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves, Tania Maria Costa, Karine Thaise Rainert, Vera Lúcia Vogel Faustino dos Santos, Ivonete Oliveira Barcellos, Lorena Benathar Ballod Tavares   +5 more
wiley   +1 more source