Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys

M. Lebyodkin; A. Deschamps; Y. Bréchet

doi:10.1016/s0921-5093(97)00314-6

Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys

M. Lebyodkin, A. Deschamps, Y. Bréchet

Research output: Contribution to journal › Article › Research › peer-review

31 Citations (Scopus)

Abstract

Mechanical behaviour of eutectic Al-Si alloys with different Si particle topology and morphology modified by heat treatment has been studied. The alloy chosen was a model system for understanding the influence of morphological and topological features on macroscopic mechanical properties. The heat treatment was used to transform a percolated structure of Si platelets and needles into an ensemble of well separated spheroidised particles. Different modes of fracture were observed depending on the particle morphology and on the testing temperature. The as-cast specimens appeared to be softer and showed higher ductility than those with spheroidised particles.

Original language	English
Pages (from-to)	481-484
Number of pages	4
Journal	Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	234-236
DOIs	https://doi.org/10.1016/s0921-5093(97)00314-6
Publication status	Published - 30 Aug 1997
Externally published	Yes

Keywords

Fracture
Metal matrix composites
Plasticity

Access to Document

10.1016/s0921-5093(97)00314-6

Cite this

@article{3f812377f938430cb176e81dba4cc44c,

title = "Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys",

abstract = "Mechanical behaviour of eutectic Al-Si alloys with different Si particle topology and morphology modified by heat treatment has been studied. The alloy chosen was a model system for understanding the influence of morphological and topological features on macroscopic mechanical properties. The heat treatment was used to transform a percolated structure of Si platelets and needles into an ensemble of well separated spheroidised particles. Different modes of fracture were observed depending on the particle morphology and on the testing temperature. The as-cast specimens appeared to be softer and showed higher ductility than those with spheroidised particles.",

keywords = "Fracture, Metal matrix composites, Plasticity",

author = "M. Lebyodkin and A. Deschamps and Y. Br{\'e}chet",

year = "1997",

month = aug,

day = "30",

doi = "10.1016/s0921-5093(97)00314-6",

language = "English",

volume = "234-236",

pages = "481--484",

journal = "Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing",

issn = "0921-5093",

publisher = "Elsevier",

}

Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys. / Lebyodkin, M.; Deschamps, A.; Bréchet, Y.
In: Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, Vol. 234-236, 30.08.1997, p. 481-484.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys

AU - Lebyodkin, M.

AU - Deschamps, A.

AU - Bréchet, Y.

PY - 1997/8/30

Y1 - 1997/8/30

N2 - Mechanical behaviour of eutectic Al-Si alloys with different Si particle topology and morphology modified by heat treatment has been studied. The alloy chosen was a model system for understanding the influence of morphological and topological features on macroscopic mechanical properties. The heat treatment was used to transform a percolated structure of Si platelets and needles into an ensemble of well separated spheroidised particles. Different modes of fracture were observed depending on the particle morphology and on the testing temperature. The as-cast specimens appeared to be softer and showed higher ductility than those with spheroidised particles.

AB - Mechanical behaviour of eutectic Al-Si alloys with different Si particle topology and morphology modified by heat treatment has been studied. The alloy chosen was a model system for understanding the influence of morphological and topological features on macroscopic mechanical properties. The heat treatment was used to transform a percolated structure of Si platelets and needles into an ensemble of well separated spheroidised particles. Different modes of fracture were observed depending on the particle morphology and on the testing temperature. The as-cast specimens appeared to be softer and showed higher ductility than those with spheroidised particles.

KW - Fracture

KW - Metal matrix composites

KW - Plasticity

UR - http://www.scopus.com/inward/record.url?scp=0031210809&partnerID=8YFLogxK

U2 - 10.1016/s0921-5093(97)00314-6

DO - 10.1016/s0921-5093(97)00314-6

M3 - Article

AN - SCOPUS:0031210809

SN - 0921-5093

VL - 234-236

SP - 481

EP - 484

JO - Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing

ER -

Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys

Abstract

Keywords

Access to Document

Other files and links

Cite this