Multifractal Analysis of Morphology of AlMg6 Alloy Fracture Surface under Consecutive Dynamic and Gigacycle Loading

被引：1
|
作者：
Oborin, Vladimir [1 ]
Bayandin, Yuriy [1 ]
Sokovikov, Mikhail [1 ]
Naimark, Oleg [1 ]
机构：
[1] RAS, UrB, Inst Continuous Media Mech, Perm 614013, Russia
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2017 (AMHS'17) | 2017年 / 1909卷
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1063/1.5013835
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of consecutive dynamic and gigacycle fatigue loads on the lifetime of aluminum-magnesium alloy AlMg6 (5083) has been studied to analyze the fracture surface morphology (roughness scaling) and generalized fatigue crack kinetics, taking into account the correlated behavior of defects at the crack tip area (process zone). The samples were dynamically preloaded by a split-Hopkinson bar device. Fatigue tests of the preloaded samples were conducted on a Shimadzu USF-2000 ultrasonic fatigue testing machine. A New-View 5010 interferometer-profiler of high structural resolution (resolution of 0.1 nm) was used for quantitative fracture surface analysis. The analysis provided data for finding the correlation between mechanical properties and scale-invariant characteristics of damage-induced roughness formed under dynamic and gigacycle fatigue loads.
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页数：4
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