On revealing hidden entrainment damage during in situ tensile testing of cast aluminum alloy components

被引：7
作者：
Olofsson, Jakob [1 ]
Bogdanoff, Toni [1 ]
Tiryakioglu, Murat [2 ]
机构：
[1] Jonkoping Univ, Sch Engn, Dept Mat & Mfg, Box 1026, Jonkoping 55111, Sweden
[2] Jacksonville Univ, Sch Engn & Technol, Jacksonville, FL 32211 USA
来源：
MATERIALS CHARACTERIZATION | 2024年 / 208卷
关键词：
Aluminum alloys; Defects; Focused ion beam (FIB); Scanning/transmission electron microscopy (STEM); Image analysis; HIGH-TEMPERATURE FATIGUE; STRUCTURAL INTEGRITY; SOLIDIFICATION; DEFORMATION;
D O I：
10.1016/j.matchar.2024.113647
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Tensile tests have been conducted on die-cast coupons of an Al-Si-Cu alloy, which have been found to contain no pores via X-ray inspection. Due to the digital image correlation used during tensile testing, either single or multiple strain concentrations have been detected and subsequently characterized. In all cases, oxide films have been found on fracture surfaces at the site of the strain concentrations. The analysis of a crack away from the fracture surface has also shown it to be an oxide bifilm. These results pour doubt on the effectiveness of quality assurance practices employed in industry.
引用
收藏
页数：6
相关论文
共 23 条
[1]  
[Anonymous], 1984, MIL-A-21180 D
[2]   On the secondary cracks during crack propagation in an Al-Si-Cu-Mg alloy: An in-situ study [J].
Bogdanoff, Toni ;
Borjesson, Johan ;
Seifeddine, Salem ;
Tiryakioglu, Murat ;
Ghassemali, Ehsan .
MATERIALS CHARACTERIZATION, 2023, 203
[3]   The complex interaction between microstructural features and crack evolution during cyclic testing in heat-treated Al-Si-Mg-Cu cast alloys [J].
Bogdanoff, Toni ;
Lattanzi, Lucia ;
Merlin, Mattia ;
Ghassemali, Ehsan ;
Jarfors, Anders E. W. ;
Seifeddine, Salem .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 825
[4]   Entrainment defects [J].
Campbell, J .
MATERIALS SCIENCE AND TECHNOLOGY, 2006, 22 (02) :127-145
[5]  
CAMPBELL J, 1968, IRON STEEL I SPECIAL, P18
[6]   Fatigue Failure in Engineered Components and How It Can Be Eliminated: Case Studies on the Influence of Bifilms [J].
Campbell, John ;
Tiryakioglu, Murat .
METALS, 2022, 12 (08)
[7]   The solidification characteristics of Fe-rich intermetallics in Al-11.5Si-0.4Mg cast alloys [J].
Cao, X ;
Campbell, J .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (05) :1425-1435
[8]  
Courtney T.H., 2005, Mechanical Behavior of Materials
[9]   Damage Investigation in A319 Aluminium Alloy by X-ray Tomography and Digital Volume Correlation during In Situ High-Temperature Fatigue Tests [J].
Dahdah, N. ;
Limodin, N. ;
El Bartali, A. ;
Witz, J. F. ;
Seghir, R. ;
Charkaluk, E. ;
Buffiere, J. Y. .
STRAIN, 2016, 52 (04) :324-335
[10]   Influence of the Casting Process in High Temperature Fatigue of A319 Aluminium Alloy Investigated By In-Situ X-Ray Tomography and Digital Volume Correlation [J].
Dahdah, Nora ;
Limodin, Nathalie ;
El Bartali, Ahmed ;
Witz, Jean-Francois ;
Seghir, Rian ;
Charkaluk, Eric ;
Buffiere, Jean-Yves .
21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21), 2016, 2 :3057-3064
123