Enhancing the wear resistance of Nano-TiC/TC4 composites through the annular oscillating laser deposition

IF 3.5 2区工程技术 Q2 OPTICS

Optics and Lasers in Engineering Pub Date : 2025-03-05 DOI:10.1016/j.optlaseng.2025.108927

Tao Wang , Jintao Wen , Lei Zhu , Guang Yang

引用次数: 0

Abstract

In this research, Nano-TiC reinforced TC4 titanium matrix composites were prepared by flat top spot laser and annular oscillating laser deposition, and the microstructure, microhardness and wear resistance were compared and analyzed. It is found that the annular oscillating laser processing amplifies the Marangoni convection, promotes the convection of the melt pool, changes the temperature field distribution in the melt pool, inhibits the preferential growth trend of columnar crystals, and promotes the transition from columnar to equiaxed. Quantitative analysis showed grain refinement: TC4 grain size decreased from 195.30 μm (flat-top spot laser) to 180.26 μm (annular oscillation laser), while Nano-TiC/TC4 composite grain decreased from 93.83 μm to 74.47 μm. These microstructural improvements resulted in an 18.66 % and 9.60 % increase in microhardness and a 11.96 % and 16.67 % reduction in wear rates for TC4 and composites, respectively.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques