Tough ultrafine-grained Ti through multilayering and grading

被引：7
|
作者：
Yang, D. K. [1 ]
Hodgson, P. D. [1 ]
机构：
[1] Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic 3216, Australia
来源：
SCRIPTA MATERIALIA | 2013年 / 68卷 / 05期
基金：
澳大利亚研究理事会;
关键词：
Ultrafine-grained materials; Toughening; Multilayering; Grading; SEVERE PLASTIC-DEFORMATION; NANOSTRUCTURED METAL; TENSILE DUCTILITY; RESIDUAL-STRESS; PURE TITANIUM; ARB PROCESS; MICROSTRUCTURE; STRENGTH; NANOCRYSTALLIZATION; REFINEMENT;
D O I：
10.1016/j.scriptamat.2012.10.051
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The mechanical performance of ultrafine-grained metals can be enhanced through multilayering and grading. The mechanical gradation across the layers and in the junctions between layers achieves a more gradual stress redistribution, providing robustness to catastrophic failure. A mechanics model is established to explain the crack-stopping effect of the multilayers. The material design principal reported here provides a valuable guide for the development of the nanograined/ultrafine-grained materials with high strength and toughness. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：309 / 312
页数：4
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