Results 61 to 70 of about 8,634 (219)

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

Advanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar, Shobhit Pratap Singh, Gaurav Mohanty, Praveen Kumar   +3 more
wiley   +1 more source

Parameter and Microstructure Research on LPBF M50NiL steel

Progress in Additive Manufacturing
Abstract M50NiL bearing steel specimens are produced by the powder bed fusion-laser beam technology (PBF-LB), and the machinability and microstructural characteristics of bearing steel for PBF-LB have been investigated. Within a reasonable range, the relative density of specimens is positively correlated with the laser power while ...
Xin Zhang, Jiwen Li, Wei Liu, Zhenshuai Wang, Liujie Xu, Yujun Xue   +5 more
openaire   +1 more source

3D characterization of the microstructure of LPBF fabricated Inconel 718 alloy

Material Science & Engineering International Journal, 2023
Laser powder bed fusion method is popularly applied in the additive manufacturing of metal parts. The void defect and microstructure are the main factors which determine their mechanical properties. However, the characterization of microstructure and cavities is two dimensional, which is hard to show the spatial profile.
Jinwu Kang, YuanHang Huangb, Hailiang Yub   +2 more
openaire   +1 more source

Additive Hybridfertigung mittels LMD und LPBF für Inconel 718

, 2022
The additive manufacturing processes Laser Metal Deposition (LMD) and Laser Powder Bed Fusion (LPBF) are established processes in turbomachinery manufacturing for new part production as well as for repair applications. The application spectrum of each of
Alkhayat, Moritz
core   +1 more source

On Machine Learning Control in LPBF Additive Manufacturing

The International Journal of Advanced Manufacturing Technology
Abstract Laser Powder Bed Fusion (LPBF) remains constrained by the absence of closed-loop control systems capable of preventing porosity and cracking during fabrication. This study introduces a physics-informed, feed-forward control framework that integrates synchronized acoustic emission and pyrometer data for defect detection and ...
Jan Boer, Marcin Magolon, Mohamed Elbestawi   +2 more
openaire   +1 more source

Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300

Materials
This research focuses on analysing the 18Ni300 maraging steel produced through laser powder bed fusion. Specifically, it aims to examine the phase components using X-ray diffraction, the microstructure through scanning electron microscopy, and the hardness of the different structures present in the manufactured material.
Pablo M. Cerezo, Jose A. Aguilera, Antonio Garcia-Gonzalez, Pablo Lopez-Crespo   +3 more
openaire   +4 more sources

Spectral emission characteristics of single point exposure LPBF process [PDF]

Despite the advantages of laser powder bed fusion (LPBF), part defects may arise from inaccurately chosen process parameters or heat accumulation during the scanning of complex geometries. Amongst different monitored entities the chemistry or the process
Caprio L., Gecevska V., Dukovski V., Previtali B., Vasileska E., Demir A. G., Vasileska, Ema, Caprio, Leonardo, Demir, Ali Gökhan, Dukovski, Vladimir, Previtali, Barbara, Gechevska, Valentina   +11 more
core   +1 more source

Effective Ti-6Al-4V Powder Recycling in LPBF Additive Manufacturing Considering Powder History

, 2023
Laser powder bed fusion (LPBF) is an outstanding additive manufacturing (AM) technology that can enable both complicated geometries and desired mechanical properties in high-value components.
Tejas Koushik, Haopeng Shen, Chao Ma, Samuel Chao Voon Lim, Mu Gao, Junlan Yi, Wen Hao Kan, Aijun Huang, Louis Ngai Sum Chiu, Gao, Mu, Yi, Junlan, Ngai Sum Chiu, Louis, Ma, Chao, Koushik, Tejas, Hao Kan, Wen, Chao Voon Lim, Samuel, Huang, Aijun, Shen, Haopeng   +17 more
core   +1 more source

Electromagnetic shielding properties of LPBF produced Fe2.9wt.%Si alloy [PDF]

, 2023
Ferromagnetic materials are used in various applications such as rotating electrical machines, wind turbines, electromagnetic shielding, transformers, and electromagnets.
Francesco Galbusera, Ali Gökhan Demir, Quercio M., Gruosso G., Aldo Canova, Michele Quercio, Barbara Previtali, Previtali B., Giambattista Gruosso, Demir A. G., Canova A., Galbusera F.   +11 more
core   +1 more source

Physics‐Informed Generative Machine Learning for Designing Crack‐Free γ′‐Strengthened Ni‐Based Superalloys for Laser Powder Bed Fusion

Materials Genome Engineering Advances, Volume 4, Issue 4, October 2026.
This research proposes a physics‐informed generative machine learning framework to design SHA800, a crack‐free γ′‐strengthened nickel‐based superalloy for laser powder bed fusion, achieving a 43% γ′ volume fraction and 587 HV0.2 hardness. ABSTRACT Fabricating γ′‐strengthened nickel‐based superalloys via laser powder bed fusion (LPBF) faces significant ...
Kai Guo, Dongwei Guan, Tao Hu, Yaqing Hou, Xiaoqun Li, Zhongnan Bi, Songzhe Xu, Hao Yu, Wei Xu, Weidong Xuan, Chaoyue Chen, Zhongming Ren   +11 more
wiley   +1 more source