A comparison of fatigue strength sensitivity to defects for materials manufactured by AM or traditional processes

被引：468

作者：

Beretta, S. ^{[1
]}

Romano, S. ^{[1
]}

机构：

[1] Politecn Milan, Dept Mech Engn, Via La Masa 1, I-20156 Milan, Italy

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2017年 / 94卷

关键词：

Additive manufacturing; AlSi10Mg; Ti-6Al-4V; Fatigue limit; Delta K-th; Short cracks; HIGH-CYCLE FATIGUE; MECHANICAL-PROPERTIES; CRACK PROPAGATION; CASTING DEFECTS; TI-6AL-4V; BEHAVIOR; MICROSTRUCTURE; SURFACE; MODEL; LIFE;

D O I：

10.1016/j.ijfatigue.2016.06.020

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The fatigue behavior of metallic materials fabricated via additive manufacturing processes is currently not well understood and it has been the subject of many experimental investigations in recent years. In this paper we carried out a literature review about the fatigue strength of additively manufactured AlSi10Mg and Ti6Al4V, especially in terms of sensitivity to defects and inhomogeneities. The analysis shows that fatigue properties and key variables (heat treatment, defect size) are very similar to the ones of parts obtained with traditional manufacturing processes. These results confirm that defect tolerant design concepts can be adopted also for AM components. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：178 / 191

页数：14