Results 71 to 80 of about 1,670 (229)

PENGARUH VARIASI SUHU POST WELD HEAT TREATMENT ANNEALING TERHADAP SIFAT MEKANIS MATERIAL BAJA EMS-45 DENGAN METODE PENGELASAN SHIELDED METAL ARC WELDING (SMAW)

open access: yesSainteknol, 2012
Penelitian ini bertujuan Untuk mengetahui nilai kekerasan Vickers material Baja EMS-45 sebelum proses pengelasan dan setelah dilakukan proses pengelasan tanpa post weld heat treatment annealing, Untuk mengetahui berapakah suhu optimal post weld heat ...
Rusiyanto Rusiyanto   +2 more
doaj  

From Material Tensions to Organizational Paradoxes: How Manufacturers Cope With the Limits of Circular Product Design

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Circular product design (CPD) is central to advancing the circular economy by enabling the narrowing, slowing, and closing of resource flows. Yet, its implementation remains persistently challenging for firms. Prior research has largely framed these challenges as discrete barriers, overlooking the structural contradictions embedded in CPD ...
Vanessa Robertson   +2 more
wiley   +1 more source

Influence of Post-Weld Heat Treatment on Mechanical Properties and Fracture Character of Welded Joints of Steel Grade P91

open access: yesНаука и техника
Steel P91 is a heat-resistant steel with a high chromium content used in the manufacture of boiler and steam pipeline components operating at steam pressures up to 31 MPa and temperatures up to 600 °C. However, increased diffusion creep, which causes the
A. I. Minkov
doaj   +1 more source

Post-weld Heat Treatment and Groove Angles Affect the Mechanical Properties of T92/Super 304H Dissimilar Steel Weld Joints

open access: yesHigh Temperature Materials and Processes, 2018
The microstructures and mechanical properties of dissimilar weld joints between T92 and Super 304H steels were investigated. Dissimilar weld joints with four groove angles were constructed using gas tungsten arc welding. The results showed that post-weld
Shuo Wang   +3 more
doaj   +1 more source

Photoreversible Polyurea Actuators With Spatiotemporal Control and Adaptive Mechanics

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A light–thermal responsive polyurea network incorporating reversibly dimerizable anthracene units enables spatiotemporal modulation of cross‐linking density and nearly 400‐fold stiffness tuning. Integrating programmable anisotropy, photopatterning, self‐healing, and photowelding within a single framework, this bioinspired “one network–multifunction ...
Zhiwen Song   +7 more
wiley   +1 more source

Experimental Investigation of Vibration Stress Relief of A106 Steel Pipe T-Welded Fittings

open access: yesJournal of Engineering, 2019
This research examines the use of vibratory treatments to reduce residual stresses in small welded parts. In this experimental investigation, a post weld vibration treatment was applied to T- A106 steel pipe fitting specimens to study the effect of the ...
Hameed Dwech Lafta   +5 more
doaj   +1 more source

Learning Rocking Dynamics From Sparse Shake‐Table Data With Interpretable Physics‐Informed Neural Networks

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT We present a hybrid interpretable Physics‐Informed Neural Network Long‐Short Term Memory (Hybrid PINN LSTM) framework for predicting the seismic response of rocking blocks. Existing analytical models rely on uncertain idealizations, while purely data‐driven and machine‐learning approaches lack physical consistency and interpretability.
Shirley Shen   +1 more
wiley   +1 more source

Influence of heat input and post-weld heat treatment on the properties of the heat affected zone and weld metal of welded joints on S690QL steel

open access: yesThe International Journal of Advanced Manufacturing Technology
Abstract The mechanical properties of heat-affected zone (HAZ) and weld metal (WM) of S690QL steel joints performed with a shielded metal arc welding (SMAW) process were determined. Three heat inputs (0.8, 1.7, and 2.5 kJ/mm) were applied, and properties were determined in the as-welded (AW) and after post weld heat treatment (PWHT). Tensile,
Pinto García, Roberto   +2 more
openaire   +2 more sources

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

open access: yesFire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier   +5 more
wiley   +1 more source

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