AN APPROXIMATION TO DETERMINE CORROSION AND MECHANICAL BEHAVIOR OF TI-BASED ALLOYS

2020 ◽  
pp. 2150001
Author(s):  
YESIM YILMAZ ◽  
HULYA DEMIROREN
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
High Corrosion Resistance ◽  
Commercially Pure ◽  
Grade 5 ◽  
Heat Treated ◽  
Before And After ◽  
Mechanical Properties And Corrosion ◽  
Cp Ti

Titanium and its alloys used in biomaterial applications are preferrably the cause of high-corrosion resistance properties in addition to having good mechanical properties. Commercially pure Ti (CP-Ti) (Grade 2), Ti6Al4V (Grade 5) and Ti6Al4V-ELI (Grade 23) samples are used as biomaterials exposed to 750°C and 1060°C for 1[Formula: see text]h. The samples were cooled in air after heat treatment at 750°C, the other samples were cooled in water after heat treatment at 1060°C. The free-heat treatment samples are as producted. Microstructures of heat-treated samples and non-made samples by comparison were evaluated before and after corrosion process microstructures and tensile strengths. Test solution is 0.5[Formula: see text]mol H2SO[Formula: see text][Formula: see text]mol HCl mixture. The corrosion resistance of the titanium samples was evaluated. Microstructure images were monitorized on optical and SEM microscopes. In this paper, the effect of heat treatment was determined on the microstructure, mechanical properties and corrosion resistances of the material. As a result, heat treatment is useful on corrosion resistance of alloyed samples.

Influence of Cr and Mn Addition and Heat Treatment on the Corrosion Behaviour of an AlSi3Mg Alloy

2017 ◽  
Vol 754 ◽  
pp. 11-14 ◽  
Author(s):  
Marialaura Tocci ◽  
Lorenzo Montesano ◽  
Annalisa Pola ◽  
Marcello Gelfi ◽  
Marina La Vecchia
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Corrosion Current Density ◽  
Corrosion Behaviour ◽  
Base Alloy ◽  
Corrosion Current ◽  
Nacl Solution ◽  
Heat Treated ◽  
Mechanical Properties And Corrosion

In the present work, the effect of Cr and Mn addition on corrosion resistance was investigated on AlSi3Mg alloy. Potentiondynamic corrosion tests in a 3.5 wt. % NaCl solution were performed on samples in different heat-treated conditions, and corrosion current density and potential were determined by Tafel method. Brinnel hardness measurements were also carried out in order to couple corrosion resistance with mechanical properties. It was interestingly found that Cr presence enhanced mechanical properties and corrosion resistance in comparison with the base alloy.

THE INFLUENCE OF HEAT TREATMENT ON THE MECHANICAL PROPERTIES OF ALUMINUM ALLOY 7150-T77 USED IN AEROSPACE

2019 ◽  
Vol 33 (1) ◽  
pp. 25-30
Author(s):  
Vasile Hotea ◽  
◽  
Jozsef Juhasz ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Corrosion Test ◽  
Artificial Aging ◽  
Two Stage ◽  
Heat Treated ◽  
Aeronautical Industry ◽  
Mechanical Properties And Corrosion

In this paper, the samples were heat treated by two-stage artificial aging to investigate the effect on the mechanical properties of the 7150-T77 aluminum alloy, and finally subjected eventually to the ESCO corrosion test according to ASTM G34-01 standard. The results have shown that the mechanical properties and corrosion resistance induced by cracking at alloy 7150 can be improved by two-stage customized heat treatment for a specific application in the aeronautical industry.

scholarly journals The Effect of Pre Weld Heat Treatment on the Mechanical Properties and Corrosion Resistance of Artificially Aged 8011A Aluminum Alloy

2020 ◽  
pp. 1-7
Author(s):  
Isiaka Oluwole Oladele ◽  
Samson Adelani Oluwagbenga ◽  
Joseph Ajibade Omotoyinbo
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Welding Process ◽  
Inert Gas ◽  
Artificial Ageing ◽  
Heat Treated ◽  
Mechanical Properties And Corrosion ◽  
Weld Heat

In this study, 8011A aluminum alloy was subjected to artificial ageing and joined by tungsten inert gas (TIG) welding process. The effect of welding process on the mechanical (hardness, tensile, impact) properties, corrosion resistance and microstructure of the artificially aged and welded joints were investigated. The sample was divided into pre weld heat treated and as received samples. The pre weld heat treated sample was subjected to solution treatment at 500 °C, soaking for 1 hour, and quench in water before artificial ageing was carried out at 180 °C with holding time of 8 hours. Both the pre heat treated and the as received samples were welded using tungsten inert gas (TIG) welding process. It was observed from the results, that the pre weld heat treatment adopted improved the mechanical properties and corrosion resistance of the weldments in some of the properties examined. In comparison with the welded samples, the hardness, tensile yield strength and corrosion resistance of the pre weld heat treated samples were significantly improved. There was an improvement of 11% in hardness, 9% in yield strength and 92 % in corrosion resistance when immersed in 3.5 wt% NaCl solution.

Anodizing and its effects on mechanical properties and corrosion resistance of laser additive manufactured Ti-6Al-4V alloy

2020 ◽  
Vol 111 (8) ◽  
pp. 654-660
Author(s):  
Palanisamy Chandramohan ◽  
Raman Raghu ◽  
Balasubramanian Ravisankar
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Additive Manufacturing ◽  
Ringer Solution ◽  
Optimum Combination ◽  
Acidic Environment ◽  
Direct Metal Laser Sintering ◽  
Horizontal Orientation ◽  
Heat Treated ◽  
Mechanical Properties And Corrosion

Abstract Ti-6Al-4V components were developed in different orientations (horizontal and vertical) using an additive manufacturing technique called direct metal laser sintering and heat treated under three different procedures. Anodizing (18- 22 V) the vertically built heat treated-2 specimen yields an optimum combination of mechanical properties and corrosion resistance tested in an acidic environment. The anodized (18- 22 V) heat treated-1 specimen built in horizontal orientation performed better in terms of combined mechanical properties and corrosion resistance tested in ringer solution.

The Microstructure and Compression Behavior of Multi-Step Forging Ti-45Al-8Nb Alloy after Annealing at 1100 °C

2013 ◽  
Vol 747-748 ◽  
pp. 111-114
Author(s):  
Lin Song ◽  
Xiang Jun Xu ◽  
Jun Pin Lin ◽  
Lai Qi Zhang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Annealing Treatment ◽  
Air Cooling ◽  
Test Machine ◽  
Compressive Properties ◽  
Compression Behavior ◽  
Microstructure Change ◽  
Heat Treated ◽  
Before And After

Effects of annealing treatment on microstructure and the compressive properties of hot-worked Ti-45Al-8Nb-(W, B, Y) alloy were investigated. Microstructure of the extrusion plus multi-step forging pancake before and after heat treatment was analyzed by SEM and TEM, respectively. The annealing was conducted by holding samples at 1100°C for 2hrs, and followed by air cooling and furnace cooling. The mechanical properties were measured by Instron test machine. The microstructure evolution during compressive deformation was analyzed by TEM. The results showed that after the annealing the microstructure change could not be observed under SEM but can be observed under TEM. Many dislocation clusters were removed by heat treatment. The heat treated samples had similar compression behaviors with the pancake. TEM investigation showed that the numerous twin intersections occured in γ matrix during compression. The twin spaces tended to decrease as the deformation and the intersection increasing.

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