The Effects of Thermo-mechanical Treatments on the Fatigue Behaviour of a Commercial Al-Mg-Si Alloy PDF Download
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Author: Chandran D. Ponniah
Publisher:
ISBN:
Category :
Languages : en
Pages : 165
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Author: Chandran D. Ponniah
Publisher:
ISBN:
Category :
Languages : en
Pages : 165
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Author: S. Elliott
Publisher:
ISBN:
Category :
Languages : en
Pages : 264
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Author: S. Iwanaga
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 12
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This paper describes the thermo-mechanical fatigue behavior of Al-Si-Cu-Mg casting alloy. The alloy is widely used for cylinder heads and pistons of automobile engines. Repeated cycling between driving and resting, or low-power and high-power driving cause thermal cycling in the engine materials. The thermo-mechanical fatigue property is therefore very important to develop high-performance engines. This study aims to characterize the cyclic stress-strain behavior of this alloy and to clarify the factors dominating the fracture life. Results obtained are : (1) The stress-strain behavior changes remarkably during thermal cycling. Cyclic hardening and cycling softening occur in the higher and lower strain ranges, respectively. (2) A thermo-mechanical fatigue fracture limit diagram is obtained by connecting fracture points on the inelastic strain range -- number of cycles relationship. (3) Consequently, in 103 - 104 cycles, it is considered that poor ductility and inelastic strain increase due to overaging dominate the thermo-mechanical fatigue life of the alloy.
Author: Michael J. Verrilli
Publisher: ASTM International
ISBN: 080312001X
Category :
Languages : en
Pages : 382
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Author: Jin Luo
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 166
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Author: Huseyin Sehitoglu
Publisher: ASTM International
ISBN: 0803128533
Category : Alloys
Languages : en
Pages : 339
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Author: Michael A. McGaw
Publisher: ASTM International
ISBN: 0803134673
Category : Alloys
Languages : en
Pages : 330
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"ASTM Stock Number: STP1428. - "Fourth Symposium on Thermomechanical Fatigue Behavior of Materials, held in Dallas, Texas on November 7-8, 2001. The Symposium was sponsored by ASTM Committee E08 on Fatigue and Fracture and its Subcommittee E08.05 on Cyclic Deformation and Fat. - Includes bibliographical references and indexes. ASTM International; 2011.
Author: FG. Ostermann
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 18
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A review is made of the available information on thermomechanical processing of aluminum alloys, especially with respect to their fatigue behavior. An attempt is made to evaluate from the scarce and sometimes contradictory experimental evidence the possibility of improving the fatigue resistance of high-strength aluminum alloys by these treatments. To do so, it is also necessary to review the important microstructural features and deformation characteristics of these alloys, which seem to control the various stages of fatigue, and which may be influenced by the thermomechanical treatments. The discussion is limited to thermomechanical treatments subsequent to solution annealing. It is concluded that suitable processing offers the advantage of improving both strength and ductility in Al-Cu and Al-Zn-Mg-Cu alloys. If the effects of inclusions can be minimized, significant benefits are possible in fatigue, at least in Stage I crack resistance, by thermomechanical processing.
Author: Max Ben-Gei Jen
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 154
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 974
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