Journal ArticleDOI
High-cycle fatigue of Ni-base superalloy Inconel 713LC
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TLDR
In this paper, the mean stress effect on high-cycle fatigue life was evaluated for three nominally identical batches of cast Ni-base superalloy Inconel 713LC under load symmetrical cycling and cycling with tensile mean load.About:
This article is published in International Journal of Fatigue.The article was published on 2010-06-01. It has received 72 citations till now. The article focuses on the topics: Fatigue limit & Casting defect.read more
Citations
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Journal ArticleDOI
State-of-the-art in surface integrity in machining of nickel-based super alloys
A. Thakur,S. Gangopadhyay +1 more
TL;DR: In this article, the state-of-the-art on various surface integrity characteristics during machining of nickel-based super alloys are presented, including surface roughness, defects (surface cavities, metal debris, plucking, smeared material, redeposited material, cracked carbide particles, feed marks, grooves and laps).
Journal ArticleDOI
Roles of microstructure in fatigue crack initiation
TL;DR: In this paper, the role of microstructural features such as grain size, texture, porosity, non-metallic inclusion in the fatigue crack initiation process and the manners by which these micro-structural effects affect the shape of the stress-life curves are examined.
Journal ArticleDOI
High temperature materials for heavy duty diesel engines: Historical and future trends
Dean T. Pierce,Allen Haynes,Jeff Hughes,Ron Graves,Phil Maziasz,Govindarajan Muralidharan,Amit Shyam,Ben Wang,Roger D. England,Claus Daniel +9 more
TL;DR: In this paper, the authors review the historical evolution and major metallurgical advancements of high temperature materials in heavy duty diesel engines up to the current state of the art, focusing on materials in the engine block, cylinder heads, pistons, valves, and exhaust components.
Journal ArticleDOI
Direct laser metal deposition of Inconel 738
TL;DR: In this paper, the feasibility of direct laser metal deposition of Inconel 738 is reported, where cracks evolved during deposition at the substrate/deposit interface and within the deposit along high angle grain boundary for scanning speed of 6 and 12mm/s due to intense residual stress and incipient melting.
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The initiation and propagation mechanism of the overlapping zone cracking during laser solid forming of IN-738LC superalloy
TL;DR: In this article, the authors investigated the cracking mechanism in the overlapping zone (OZ) of laser solid forming (LSF) of IN-738LC alloy and found that both the solidification cracks and liquation cracks can be found in the OZ of the LSFed IN- 738LC specimen, and the results showed that the cracks always propagated along the high-angle grain boundaries due to their relatively wider solidification temperature range compared with the lower angle grain boundaries.
References
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Journal ArticleDOI
Extreme value models for the assessment of steels containing multiple types of inclusion
TL;DR: A new model on which estimations may be based is proposed for cases when two or more types of inclusion are present and it is shown that it is more realistic than an earlier mixture model and that it fits data equally well.
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On the size distribution of fracture-initiating defects in Al-and Mg-alloy castings
TL;DR: The use of defect size distributions in models for fatigue life is reviewed in this article, where a brief summary of extreme value statistics is provided, and the analysis of data reported in the literature on the size of fracture-initiating defects in Al- and Mg-alloy castings by using the general extreme value distribution is discussed.
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Mechanical properties of conventionally cast, directionally solidified, and single-crystal superalloys
P. N. Quested,S. Osgerby +1 more
TL;DR: In this paper, the effect of microstructural variations produced by the casting conditions, such as porosity and grain size, on creep and low-cycle fatigue properties of conventional, directionally solidified, and single-crystal castings produced from nickel-base superalloys are illustrated.
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Competition between three damaging mechanisms in the fractured surface of an Inconel 713 superalloy
TL;DR: In this article, a nickel-based Inconel 713 superalloy gas turbine blade was examined using a variety of experimental approaches to determine the material's properties (chemical composition, morphology and crystalline structure) and microscopic observation of the fractured surface.