Effect of aspect ratios of in situ formed TiB whiskers on the mechanical properties of TiBw/Ti-6Al-4V composites
Effect of aspect ratios of in situ formed TiB whiskers on the mechanical properties of TiBw/Ti-6Al-4V composites
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DOI：
10.1016/j.scriptamat.2011.12.024
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发表时间：
2012-04-01
影响因子：
6
通讯作者：
Hong, Soon Hyung
中科院分区：
文献类型：
--
作者：
Koo, Min Young;Park, Jae Sung;Hong, Soon Hyung
采用放电等离子烧结技术，通过TiB 2和Ti-6Al-4V粉末的原位反应制备了纳米TiB晶须增强钛合金复合材料（TiBw/Ti-6Al-4V）。长径比为58的晶须增强的TiBw/Ti-6Al-4V复合材料的增强效率是低长径比晶须增强的3倍。据确定，强化源于高承载能力的直径为100 nm的TiB晶须原位形成在钛合金基体中。(C)2011 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
Ti alloy matrix composites reinforced with nanosized TiB whiskers (TiBw/Ti-6Al-4V) were synthesized through an in situ reaction between TiB2 and Ti-6Al-4V powders during a spark plasma sintering process. The TiBw/Ti-6Al-4V composites reinforced by whiskers with an aspect ratio of 58 exhibited threefold greater strengthening efficiency compared to those reinforced by whiskers with low aspect ratios. It was determined that the strengthening originates from the high load-bearing capability of TiB whiskers with a diameter of 100 nm formed in situ in a Ti alloy matrix. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.