{"title":"Overcoming the Strength-Ductility dilemma in titanium matrix composites through the construction of a Two-Scale laminated structure","authors":"Zou Xiong, Liu Junliang, Yang Yu, Zhang Fuqin","doi":"10.1016/j.matlet.2024.136927","DOIUrl":null,"url":null,"abstract":"<div><p>In this research, a novel strategy for improving titanium alloy strength while maintaining ductility is proposed. A laminar structure of titanium matrix composites on both macroscopic and microscopic scales has been obtained by in-situ reaction combined with spark plasma sintering (SPS), which consists of pure titanium layers and in-situ TiC layers. In particular, the in-situ TiC layer, which has a “brick and mortar” structure, is formed by the reaction of Carbon Nanotubes (CNTs) with flaky titanium powder.Results show that the two-scaled laminate composite exhibits exceptional strength/ductility synergy, with significantly increased yield strength (+127.32 MPa compared to pure Ti) while maintaining a commendable ductility of 23.2 %.This research proposes a practical strategy to achieve a balance between strength and ductility through the synergistic effect of multiple structures in titanium matrix composites.</p></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24010668","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this research, a novel strategy for improving titanium alloy strength while maintaining ductility is proposed. A laminar structure of titanium matrix composites on both macroscopic and microscopic scales has been obtained by in-situ reaction combined with spark plasma sintering (SPS), which consists of pure titanium layers and in-situ TiC layers. In particular, the in-situ TiC layer, which has a “brick and mortar” structure, is formed by the reaction of Carbon Nanotubes (CNTs) with flaky titanium powder.Results show that the two-scaled laminate composite exhibits exceptional strength/ductility synergy, with significantly increased yield strength (+127.32 MPa compared to pure Ti) while maintaining a commendable ductility of 23.2 %.This research proposes a practical strategy to achieve a balance between strength and ductility through the synergistic effect of multiple structures in titanium matrix composites.
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