Femtosecond Laser Shock Peening Residual Stress and Fatigue Life of Additive Manufactured AlSi10Mg

被引：6
作者：
Biddlecom, Jacob [1 ]
Li, Yuxin [1 ]
Zhao, Xin [1 ]
Berfield, Thomas A. A. [2 ]
Pataky, Garrett J. J. [1 ]
机构：
[1] Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA
[2] Univ Louisville, Dept Mech Engn, Louisville, KY 40292 USA
来源：
JOM | 2023年 / 75卷 / 06期
基金：
美国国家科学基金会;
关键词：
PH STAINLESS-STEEL; LOW-CYCLE FATIGUE; MECHANICAL-PROPERTIES; HEAT-TREATMENT; MICROSTRUCTURE; TI-6AL-4V; BEHAVIOR; ALLOY; PARTS; PERFORMANCE;
D O I：
10.1007/s11837-023-05820-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Additive manufactured (AM) alloys are still prone to potentially critical flaws, such as gaseous bubble entrapment. These defects can lead to early crack initiation reducing fatigue life and increasing scatter, especially when near the surface. This research investigated the effect of femtosecond laser shock peening (FLSP) on the fatigue life of AM AlSi10Mg. Due to the low penetration of the FLSP, low cycle fatigue life remained consistent between treated and untreated specimens. Of equal importance though, the scatter was found to be reduced in the FLSP treated samples. From the high-resolution DIC results, the average strain per grain in the untreated specimens showed a higher increase of strain from initial loading to final fracture as compared to the FLSP samples. Implementing the use of FLSP onto AM materials could lead to more consistent fatigue life despite the presence of porosity, leading to a path of easier certification and improved confidence in their behavior.
引用
收藏
页码：1964 / 1974
页数：11
相关论文
共 75 条
[1]   On the effect of deep-rolling and laser-peening on the stress-controlled low- and high-cycle fatigue behavior of Ti-6Al-4V at elevated temperatures up to 550°C [J].
Altenberger, Igor ;
Nalla, Ravi K. ;
Sano, Yuji ;
Wagner, Lothar ;
Ritchie, Robert O. .
INTERNATIONAL JOURNAL OF FATIGUE, 2012, 44 :292-302
[2]  
[Anonymous], Experimental and Applied Mechanics
[3]  
[Anonymous], 2004, Fatigue of Materials
[4]   Very high-cycle fatigue properties and microstructural damage mechanisms of selective laser melted AlSi10Mg alloy [J].
Awd, Mustafa ;
Siddique, Shafaqat ;
Johannsen, Jan ;
Emmelmann, Claus ;
Walther, Frank .
INTERNATIONAL JOURNAL OF FATIGUE, 2019, 124 :55-69
[5]   Effect of different shot peening conditions on the fatigue life of 300 M steel submitted to high stress amplitudes [J].
Bag, Amrita ;
Delbergue, Dorian ;
Ajaja, Jihane ;
Bocher, Philippe ;
Levesque, Martin ;
Brochu, Myriam .
INTERNATIONAL JOURNAL OF FATIGUE, 2020, 130
[6]   Life cycle strengthening of high-strength steels by nanosecond laser shock [J].
Bai, Yongtao ;
Wang, Hao ;
Wang, Shuhong ;
Huang, Yihui ;
Chen, Yao ;
Zhang, Wenwu ;
Ostendorf, Andreas ;
Zhou, Xuhong .
APPLIED SURFACE SCIENCE, 2021, 569
[7]   Low- and high-cycle fatigue resistance of Ti-6Al-4V ELI additively manufactured via selective laser melting: Mean stress and defect sensitivity [J].
Benedetti, M. ;
Fontanari, V. ;
Bandini, M. ;
Zanini, F. ;
Carmignato, S. .
INTERNATIONAL JOURNAL OF FATIGUE, 2018, 107 :96-109
[8]   The effect of post-sintering treatments on the fatigue and biological behavior of Ti-6Al-4V ELI parts made by selective laser melting [J].
Benedetti, M. ;
Torresani, E. ;
Leoni, M. ;
Fontanari, V. ;
Bandini, M. ;
Pederzolli, C. ;
Potrich, C. .
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 2017, 71 :295-306
[9]   Criticality of porosity defects on the fatigue performance of wire plus arc additive manufactured titanium alloy [J].
Biswal, Romali ;
Zhang, Xiang ;
Syed, Abdul Khadar ;
Awd, Mustafa ;
Ding, Jialuo ;
Walther, Frank ;
Williams, Stewart .
INTERNATIONAL JOURNAL OF FATIGUE, 2019, 122 :208-217
[10]   Anisotropic tensile behavior of Ti-6Al-4V components fabricated with directed energy deposition additive manufacturing [J].
Carroll, Beth E. ;
Palmer, Todd A. ;
Beese, Allison M. .
ACTA MATERIALIA, 2015, 87 :309-320
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