Journal Information
Vol. 2. Num. 1.January - March 2013
Pages 1-86
Share
Share
Download PDF
More article options
Vol. 2. Num. 1.January - March 2013
Pages 1-86
Original Article
DOI: 10.1016/j.jmrt.2013.03.003
Open Access
Comparative study of mechanical properties using standard and micro-specimens of base materials Inconel 625, Inconel 718 and Ti-6Al-4V
Visits
9238
Nikolai Kashaev
Corresponding author
nikolai.kashaev@hzg.de

Corresponding author.
, Manfred Horstmann, Volker Ventzke, Stefan Riekehr, Norbert Huber
Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Materials Mechanics/ACE-Centre, Geesthacht, Germany
This item has received
9238
Visits

Under a Creative Commons license
Article information
Abstract

To improve innovative joining and deposition technologies for the construction of dissimilar joints, precise knowledge of the local mechanical properties of materials must be obtained. In the present article a comparative study of the tensile properties and fatigue behaviour in case of flat standard and micro-specimens of base materials Inconel 625, Inconel 718 and Ti-6Al-4V was accomplished. The aim of the study was to develop an efficient method for the investigation of the local mechanical properties by the use of micro-specimens subjected to electro discharge machining treatment and to obtain reliable tensile and fatigue test results. By the miniaturization of specimens a significant effect of roughness on mechanical properties was obtained. By considering a correction for the effective load-bearing cross-section the data obtained from micro-specimens are within 3% error with respect to standard specimen results. The results showed that the proposed technique can be successfully used to determine the tensile and fatigue properties of a small material volume.

Keywords:
Micro-tensile Specimen
Micro-fatigue Specimen
Small Scale Testing
Size Effect
Local Tensile Properties
Local Fatigue Properties
Full text is only aviable in PDF
References
[[1]]
M.V. Vaidya, M. Horstmann, V. Ventzke, B. Petrovksi, M. Kocak, R. Kocik
Structure-property investigations on a laser beam welded dissimilar joint of aluminium AA6056 and titanium Ti6Al4V for aeronautical applications Part I: Local gradients in microstructure, hardness and strength
Materialwiss Werk- stofftech., 40 (2009), pp. 623-633
[[2]]
M.V. Vaidya, M. Horstmann, V. Ventzke
Structure-property investigations on a laser beam welded dissimilar joint of aluminium AA6056 and titanium Ti6Al4V for aeronautical applications Part II: Resistance to fatigue crack propagation and fracture
Materialwiss Werkstofftech., 40 (2009), pp. 769-779
[[3]]
P. Jung, A. Hishinuma, G.E. Lucas, H. Ullmaier
Recommendation of miniaturized techniques for mechanical testing of fusion materials in an intense neutron source
J Nucl Mater., 232 (1996), pp. 186-205
[[4]]
G. Cam, C. Yeni, S. Erim, V. Ventzke, M. Kocak
Investigation into properties of laser welded similar and dissimilar steel joints
Sci Technol Weld Joining., 3 (1998), pp. 177-189
[[5]]
W.N. Sharpe
The murray lecture tensile testing at the micro- meter scale: opportunities in experimental mechanics
Exp Mech., 43 (2003), pp. 228-237
[[6]]
D.S. Gianola, C. Eberl
Micro- and nanoscale tensile testing of materials
JOM., 61 (2009), pp. 24-35
[[7]]
T. Connolley, P.E. Mchugh, M. Bruzzi
A review of deformation and fatigue of metals at small size scales
Fatigue Fract Eng Mater Struct., 28 (2005), pp. 1119-1152
[[8]]
A.V. Sergueeva, J. Zhou, B.E. Meacham, D.J. Branagan
Gage length and sample size effect on measured properties during tensile testing
J Mater Sci Eng A., 526 (2009), pp. 79-83
Copyright © 2013. Brazilian Metallurgical, Materials and Mining Association
Journal of Materials Research and Technology

Subscribe to our Newsletter

Article options
Tools
Cookies policy
To improve our services and products, we use cookies (own or third parties authorized) to show advertising related to client preferences through the analyses of navigation customer behavior. Continuing navigation will be considered as acceptance of this use. You can change the settings or obtain more information by clicking here.