Results 61 to 70 of about 5,650 (217)

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

Comparison of Microstructure and Mechanical Properties of Ti65 Alloy Prepared by Micro and Conventional Laser Powder Bed Fusion

Metals
The demand for miniaturized high-temperature components necessitates advanced additive manufacturing techniques, yet the microstructural and mechanical consequences of scaling down the laser powder bed fusion (LPBF) process remain poorly understood.
Yuan Meng, Jinjun Wu, Zhenghao Xu, Xianglong Wang, Xiaoyu Chen   +4 more
doaj   +1 more source

Large Language Model‐Informed Dual‐Track AI Framework for the Synergistic Design of Crack‐Free and High‐Strength Superalloys

Advanced Science, EarlyView.
This paper illustrates a knowledge‐augmented dual‐track AI framework for advanced superalloy design. First, Large Language Models translate metallurgical heuristics into explicit rules to rapidly prune a vast compositional search space. Subsequently, LLM‐distilled priors safely guide a reinforcement learning agent during autonomous process optimization,
Jian Yao, Junkang Wu, Jie Su, Fuzhu Wang, Zi Wang, Li Wang, Liming Tan, Lan Huang, Feng Liu, Yong Liu   +9 more
wiley   +1 more source

Biodegradable Zn‐Based Implants: Progress, Challenges, and Pathways toward Clinical Translation

Advanced Science, EarlyView.
Exploring biodegradable Zn‐based implants offers a promising pathway to next‐generation biomedical devices with balanced degradation and biocompatibility. A comprehensive overview of biodegradable Zn‐based implants, covering their biological significance, material design principles, and advanced engineering strategies is provided.
Panfeng Zhao, Zhengquan Wang, Hui Yang, Xiyuan Zhang, Hanyuan Liu, Xiaotong Lu, Xiaocheng Li, Yanyan Liu, Xi Zhao, Wenhao Zhou, Yufeng Zheng   +10 more
wiley   +1 more source

Toward Voxel Level Control for Laser Powder Bed Fusion Additive Manufacturing Processes

, 2023
In the Laser Powder Bed Fusion (LPBF) additive manufacturing (AM) process, a highspeed scanning laser beam is employed to construct components by melting and fusing metal powder together. While AM is generally characterized as a layer-by-layer technique,
Yeung, Ho, Neira, Jorge
core   +1 more source

Qualify-as-you-go: sensor fusion of optical and acoustic signatures with contrastive deep learning for multi-material composition monitoring in laser powder bed fusion process

Virtual and Physical Prototyping
Growing demand for multi-material Laser Powder Bed Fusion (LPBF) faces process control and quality monitoring challenges, particularly in ensuring precise material composition.
Vigneashwara Pandiyan, Antonios Baganis, Roland Axel Richter, Rafał Wróbel, Christian Leinenbach   +4 more
doaj   +1 more source

Microstructural Evaluation and Tensile Properties of Al-Mg-Sc-Zr Alloys Prepared by LPBF

Crystals, 2023
Laser powder bed fusion (LPBF) is a typical additive manufacturing technology that offers significant advantages in the production of complex components.
Yuxian Lu, Hao Zhang, Peng Xue, Lihui Wu, Fengchao Liu, Luanluan Jia, Dingrui Ni, Bolv Xiao, Zongyi Ma   +8 more
doaj   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

Chemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler, Kati Schatz, Sebastian Rehfeldt, Harald Klein   +3 more
wiley   +1 more source

Synergy of laser powder bed fusion (LPBF) and heat treatment for CuNi2SiCr alloy enhancement

Materials & Design
This research explores the thermal and mechanical properties of a CuNi2SiCr alloy made by laser powder bed fusion (LPBF) for potential use in the neck insert of extrusion blow molds. Process parameter optimization, aging heat treatment design, thermal and mechanical property characterizations, microstructural analysis, and an exploration of the factors
Eskandar Fereiduni, Ali Ghasemi, Noah Sargent, Mohamed Balbaa, Liyi Wang, Mohamed Elbestawi, Swee Leong Sing, Wei Xiong   +7 more
openaire   +2 more sources

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

Heat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source