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

页码：309 / 312

页数：4

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