Enhanced Corrosion Resistance of Ti65 Alloys through Chromium Magnetron Sputtering and Laser Remelting: A Synergistic Surface Engineering Strategy DOI Creative Commons

Xinguo Chen,

Wanming Li,

Naixu Wang

et al.

Journal of Materials Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Effect of rotating laser welding on microstructure and mechanical properties of Ti6Al4V alloy butt-welded joint DOI
Chaochao Zhao, Jing Cheng, Li Zhang

et al.

Journal of Materials Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

Citations

2
Improved Thin-Kerf Processing in Cf/SiC Composite by Waterjet-Guided Nanosecond Laser Decreases Oxidation and Thermal Effect DOI Open Access
Ling Wang, Guangyi Zhang, Qiaoli Wang

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(7), P. 1560 - 1560

Published: March 29, 2025

As a hard and brittle material, the processing of Cf/SiC ceramic matrix composites (CMCs) faces significant challenges, especially in small-sized shapes. To address this challenge, laser with gas-assisted nanosecond (GNL) waterjet-guided (WNL) modes were applied to fabricate thin kerfs composite. The surface morphology, microstructure, chemical composition processed composite investigated comparatively. results revealed that coupling helium GNL mode could make full use energy, but resulted spattering kerf margin recast layer surface, accompanied by obvious oxidation, while waterjet WNL decreased oxidation significantly removed remelting debris, which produced clear flat surface. Due taper caused energy dissipation, single-path had limited depth. maximum depth prepared was about 328 μm, 302 μm. multi-path through composite, medium obviously influenced morphology microstructure underlying region. varied transited from top layer, covered oxide particles some cracks, bottom featured micro-grooves small oxides. consistently smooth clean broken carbon fiber residual SiC matrix. slow dissipation open environment bigger HAZ relatively serious local phase transformation degradation. isolation condition rapid cooling restrained almost keeping original microstructure. thicknesses GNL- WNL-processed 200 μm 100 respectively. lower thermal damage is instructive for

Language: Английский

Citations

0
Improvement of Micro-Hole Processing in SiCf/SiC Ceramic Matrix Composite Using Efficient Two-Step Laser Drilling DOI Creative Commons
Yue Cao, Bin Wang, Zhehang Li

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(4), P. 430 - 430

Published: April 2, 2025

SiCf/SiC ceramic matrix composite (CMC), a hard and brittle material, faces significant challenges in efficient high-quality processing of small-sized shapes. To address these challenges, the nanosecond laser was used to process micro-holes CMC using two-step drilling method, including pre-drilling air final-drilling with water jet. The results single-parameter variation optimized orthogonal experiments reveal that optimal parameters for are as follows: 1000 cycles, 0.7 mJ single-pulse energy, −4 mm defocus, 15 kHz pulse-repetition frequency, 85% overlap rate. With settings, micro-hole an entrance diameter 343 μm taper angle 1.19° can be processed 100 s, demonstrating high efficiency. However, region exhibits spattering slags oxidation, while sidewall is covered by recast layer wrinkled morphology attached oxides. These effects primarily attributed presence oxygen, which enhances efficiency but promotes oxidation. For jet, balanced 2000 0.6 10 rate, 4.03 m/s jet velocity. Using parameters, pre-drilled finally 96 yielding 423 0.36°. Due effective elimination oxides final clean microgrooves, indicating processing. could ascribed different physical properties SiC fiber matrix, steam explosion cavitation erosion. This may provide new insights into holes.

Language: Английский

Citations

0
Direct Ink Writing of Functionally Graded Bone Scaffolds Using Ceramic Foams to Mimic Natural Bone Hierarchical Porosity and Multiple Gradients DOI
Weiwei Guo, Aiyuan Ma, Zhaoliang Jiang

et al.

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112465 - 112465

Published: April 1, 2025

Language: Английский

Citations

0
Microarc Oxidation-PBAT Composite Coating on EK30 Biodegradable Magnesium Alloys to Enhance Corrosion Resistance and Cytocompatibility DOI

Weisheng Cao,

Siyu Zhu, Weiqiang Wang

et al.

Colloids and Surfaces B Biointerfaces, Journal Year: 2025, Volume and Issue: 253, P. 114720 - 114720

Published: April 18, 2025

Language: Английский

Citations

0
Micro-Arc Oxidation (MAO) Synthesized MgAl2O4 Spinel-Integrated Coatings on Mg Alloys: Multidimensional Exploration of Bioegradation, Biocompatibility, and Osseointegration DOI Creative Commons

Feng Jun,

Shaohua Yuan,

Zhiyong Shi

et al.

Journal of Materials Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Enhanced Corrosion Resistance of Ti65 Alloys through Chromium Magnetron Sputtering and Laser Remelting: A Synergistic Surface Engineering Strategy DOI Creative Commons

Xinguo Chen,

Wanming Li,

Naixu Wang

et al.

Journal of Materials Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0