1999
DOI: 10.1007/s11661-999-0216-4
|View full text |Cite
|
Sign up to set email alerts
|

The effect of solidification rate on the growth of small fatigue cracks in a cast 319-type aluminum alloy

Abstract: A study was conducted to investigate the effect of solidification rate on the growth behavior of small fatigue cracks in a 319-type aluminum alloy, a common Al-Si-Cu alloy used in automotive castings. Fatigue specimens were taken from cast material that underwent a hot isostatic pressing (HIP) process in order to eliminate shrinkage pores and to facilitate the observation of surface-initiated cracks by replication. Naturally initiated surface cracks ranging in length from 17 m to 2 mm were measured using a rep… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

3
83
0

Year Published

2007
2007
2017
2017

Publication Types

Select...
4
4
1

Relationship

0
9

Authors

Journals

citations
Cited by 132 publications
(94 citation statements)
references
References 15 publications
3
83
0
Order By: Relevance
“…The stress effect on short crack growth has also been observed in the low Si piston alloy (Al0.7Si) [9]. Similar observations have also been reported in a 319 type alloy by Caton et al [11] and in A356 by Plumtree and Schaefer [12]. The loading conditions used in this work result in a plastically deformed layer near the surface of the specimen right from the first loading cycle.…”
Section: Resultssupporting
confidence: 83%
See 1 more Smart Citation
“…The stress effect on short crack growth has also been observed in the low Si piston alloy (Al0.7Si) [9]. Similar observations have also been reported in a 319 type alloy by Caton et al [11] and in A356 by Plumtree and Schaefer [12]. The loading conditions used in this work result in a plastically deformed layer near the surface of the specimen right from the first loading cycle.…”
Section: Resultssupporting
confidence: 83%
“…The magnitude of this surface layer deformation naturally depends on the applied stress. Previous reports [11,13,14] suggest that this stress dependent global and local crack tip plasticity can accelerate the growth of short cracks and is therefore be the cause of the stress dependent results observed in this alloy.…”
Section: Resultsmentioning
confidence: 60%
“…Correlation of small crack growth rate relationships for the various specimen conditions using an expression based on crack tip opening displacement and yield strength. This has previously proved useful in obtaining a single curve that defined crack growth rate behaviour for a range of microstructures in an aluminium casting alloy [10]. 3.…”
Section: Welded Joints In Aluminium Alloysmentioning
confidence: 99%
“…Nevertheless, in defect free specimens, the microstructural constituents play a role in fatigue crack nucleation and long crack propagation. Crack nucleation has been observed at the surface of eutectic silicon particles [2,14,16,17], or at intermetallic particles [2] and at persistent slip bands (PSB) [6,16,18]. The morphology of the alpha phase and of the eutectic silicon particles was also found to influence the crack propagation threshold in a study carried out on PM and SSM cast specimens [19].…”
Section: Introductionmentioning
confidence: 99%