Experimental and Statistical Analysis of Fatigue Behavior in Zr-based Bulk Metallic Glass  

Zr基大块金属玻璃疲劳实验与概率寿命预测

作　　者：Yao Zhifeng Qiao Jichao Pelletier Jean-Marc Yao Yao 姚志锋;乔吉超;Pelletier Jean-Marc;姚尧(西安建筑科技大学土木工程学院,陕西西安710055;东莞市三航军民融合创新研究院,广东东莞523808;西北工业大学力学与土木建筑学院,陕西西安710072;里昂大学里昂国立应用科学学院,法国里昂F-69621;西安工业大学材料与化工学院,陕西西安710021)

机构地区：[1]School of Civil Engineering,Xi'an University of Architecture&Technology,Xi'an 710055,China [2]Dongguan Sanhang Innovation Institute,Dongguan 523808,China [3]School of Mechanics,Civil Engineering and Architecture,Northwestern Polytechnical University,Xi'an 710072,China [4]Institut National des Sciences Appliquées de Lyon,Universitéde Lyon,Lyon F-69621,France [5]School of Materials and Chemical Engineering,Xi'an Technological University,Xi'an,710021,China

出　　处：《稀有金属材料与工程》2024年第11期3010-3016,共7页Rare Metal Materials and Engineering

基　　金：Guangdong Basic and Applied Basic Research Foundation(2022A1515010207);Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices(AFMD-KFJJ-22204)。

摘　　要：Three-point bending fatigue experiments were conducted on a typical Zr-based bulk metallic glass(BMG)at ambient temperature to investigate the fatigue behavior under cyclic loading conditions.Results show that the stress amplitude-cycles to failure(S-N)curve of the Zr-based BMG is determined,and the fatigue endurance limit is 442 MPa(stress amplitude).To evaluate the probability-stress amplitude-cycles to failure(P-S-N)curve,an estimation method based on maximum likelihood was proposed,which relies on statistical principles to estimate the fatigue life of the material and allows for a reduction in the number of samples required,offering a cost-effective and efficient alternative to traditional testing methods.The experimental results align with the American Society for Testing and Materials(ASTM)standard,indicating the reliability and accuracy of this estimation method in evaluating the fatigue behavior of Zr-based BMG.对Zr基大块金属玻璃(BMG)进行了室温下三点弯曲疲劳实验,旨在探究其在循环载荷下的疲劳行为。结果表明,根据确定的应力幅度-破坏循环(S-N)曲线,Zr基BMG的疲劳极限为442 MPa。为评估P-S-N曲线,提出了一种基于最大似然原理的估算方法,利用统计原理预测材料疲劳寿命,减少了所需样本数量,降低了实验成本。实验结果与美国测试和材料协会(ASTM)标准相符,证明了估算方法的可靠性和准确性。

关 键 词：bulk metallic glass P-S-N curve fatigue test statistical analysis 

分 类 号：TG139.8[一般工业技术—材料科学与工程]