Integrated laser alloying-grinding for additive-subtractive manufacturing of Ti6Al4V surface with B4C coating

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-01-14 DOI:10.1016/j.triboint.2025.110537

Yuan Hong , Cong Sun , Dawei Wang , Changhong Cao , Yanhui Tao , Yue Lu , Liang Ma

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引用次数: 0

Abstract

Laser additive technology is commonly utilized to prepare strengthened coatings on Ti6Al4V without considering surface precision and deformation. A secondary surface finishing is cumbersome with low productivity. Therefore, integrated laser alloying-grinding is proposed by combining laser additive strengthening with grinding subtractive shaping. The B₄C coatings are prepared for boron-carbon alloying of the Ti6Al4V. The high-energy laser makes the grinding process stable. The roughness S_a of the integrated laser alloying-grinding surface is reduced by 51 % compared to the conventional machined surfaces. The alloyed surface hardness reaches 750 HV, and its wear and corrosion resistance far exceeds that of the Ti6Al4V matrix. The integrated laser alloying-grinding can realize Ti6Al4V surface property-accuracy synergistic manufacturing and present in-depth theoretical instruction for surface anti-fatigue fields.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.