Fatigue resistance of aluminum alloys with different types of coatings

1986 ◽  
Vol 18 (6) ◽  
pp. 778-782 ◽  
Author(s):  
Yu. I. Ustinovshchikov ◽  
V. F. Lys
Keyword(s):  
Aluminum Alloys ◽  
Fatigue Resistance ◽  
Different Types

Fatigue and corrosion fatigue resistance of cast VAL10 and forged AK6 aluminum alloys

1984 ◽  
Vol 20 (4) ◽  
pp. 351-353
Author(s):  
A. V. Karlashov ◽  
A. D. Gnatyuk ◽  
V. M. Polishchuk ◽  
V. M. Beletskii
Keyword(s):  
Aluminum Alloys ◽  
Fatigue Resistance ◽  
Corrosion Fatigue

Corrosion-fatigue resistance of anodized aluminum alloys

1977 ◽  
Vol 12 (5) ◽  
pp. 549-550
Author(s):  
A. V. Karlashov ◽  
R. G. Gainutdinov ◽  
A. V. Golubnichii
Keyword(s):  
Aluminum Alloys ◽  
Fatigue Resistance ◽  
Corrosion Fatigue ◽  
Anodized Aluminum

Effect of Shot Peen Forming with Large Balls on Fatigue Resistance of 2024-T351 Aluminum Alloy

2013 ◽  
Vol 816-817 ◽  
pp. 266-270
Author(s):  
Ming Tao Wang ◽  
Yuan Song Zeng ◽  
Jian Qin Shang ◽  
Xia Huang ◽  
Xue Piao Bai
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Resistance ◽  
Shot Peening ◽  
Metal Forming ◽  
Forming Process ◽  
Surface Strengthening ◽  
Peen Forming ◽  
Different Types ◽  
Metal Forming Process ◽  
Aeronautical Industry

Shot peen forming different from shot peening is a metal forming process widely used in aeronautical industry. Different types of tension-tension fatigue specimens after peen forming were tested. The results show that the fatigue life of specimens peen formed with large balls except edges is 35.4% higher than that of unpeened specimens, while the life of the specimens with whole surface peen formed is 23.2% lower than that of the unpeened specimens. In addition, shot peening specimens which have been peen formed as a surface strengthening way can significantly improve the fatigue resistance. Moreover, when the specimen is peen formed except edges, the position of crack source is from the indentation region to subsurface.

Improving Corrosion Fatigue Resistance of Aluminum Alloys

1983 ◽  
Author(s):  
V. I. Birss ◽  
R. B. Lidstone ◽  
M. Zamin
Keyword(s):  
Aluminum Alloys ◽  
Fatigue Resistance ◽  
Corrosion Fatigue

scholarly journals The influence of the parameters of lost foam process on the quality of aluminum alloys castings

2010 ◽  
Vol 64 (2) ◽  
pp. 121-127
Author(s):  
Zagorka Acimovic-Pavlovic ◽  
Milutin Djuricic ◽  
Sasa Drmanic ◽  
Rade Djuricic
Keyword(s):  
Aluminum Alloys ◽  
Liquid Metal ◽  
Processing Parameters ◽  
Production Costs ◽  
Polymer Materials ◽  
Special Consideration ◽  
Refractory Coating ◽  
Metal Pattern ◽  
Different Types ◽  
Lost Foam

This paper presents the research results of application of Lost foam process for aluminum alloys castings of a simple geometry. The process characteristic is that patterns and gating of moulds, made of polymers, stay in the mould till the liquid metal inflow. In contact with the liquid metal, pattern intensely and in relatively short time decomposes and evaporates, which is accompanied by casting crystallization. As a consequence of polymer pattern decomposition and evaporation a great quantity of liquid and gaseous products are produced, which is often the cause of different types of casting errors. This paper presents the results of a research with a special consideration given to detecting and analyzing the errors of castings. In most cases the cause of these errors are defects of polymer materials used for evaporable patterns production, as well as defects of materials for refractory coatings production for polymer patterns. The researches have shown that different types of coatings determine properties of the obtained castings. Also, the critical processing parameters (polymer pattern density, casting temperature, permeability of refractory coating and sand, construction of patterns and gating of moulds) significantly affect on castings quality. During the research a special consideration was given to control and optimization of these parameters with the goal of achieving applicable castings properties. The study of surface and internal error of castings was performed systematically in order to carry out preventive measures to avoid errors and minimize production costs. In order to achieve qualitative and profitable castings production by the method of Lost foam it is necessary to reach the balance in the system: evaporable polymer pattern - liquid metal - refractory coating - sandy cast in the phase of metal inflow, decomposition and evaporation of polymer pattern, formation and solidification of castings. By optimizing the processing parameters castings of required structural and mechanical characteristics could be achieved, casting defects characteristic for this process could be avoided with the result of the production costs saving. The presented results can be useful to define parameters of Lost foam process and its application in practice with objective to obtain castings with in advance specified quality.

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