Mechanical and Sliding Wear Properties of sintered porous Ti-4Co alloy of tailored density

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-02-03 DOI:10.1016/j.matlet.2025.138176

J.P. Shakya , Anurag Kulshreshtha , Sudhir Sharma , G.P. Sahu , Ajaya Bharti , Pradeep Singh

引用次数: 0

Abstract

This work examines mechanical and sliding wear behaviour of low to highly porous Ti-4Co (wt. %) alloy. The samples with relative densities of 0.57, 0.41, and 0.31 exhibited yield strengths of 180 MPa, 16 MPa, and 3 MPa, respectively, while their corresponding elastic moduli were 38 GPa, 6 GPa, and 4 GPa. Hardness is also strong function of relative density (RD) as well as radial distance and found its maximum and minimum value 200 and 80 HV. In wear test, slight increment in coefficient of friction with constant specific wear rate was observed for the sample having RD 0.57 for 400–2000 m sliding distance. Conversely, a significant reduction in coefficient of friction (16 %) and specific wear rate (50 %) was seen for the sample with RD 0.41. However, highly porous sample (RD = 0.31) encountered surface wipe-off, resulting an alarming wear rate.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive