Effect of Solution Treatment Temperature on Tensile Strength of Al-Mg-Si Alloy

Jamaludin, Shamsul Baharin; Abdullah, Mohd Hanif; Mazlee, Mohd Noor; Kamarudin, H.

doi:10.4028/www.scientific.net/msf.819.39

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…Thus, this sample has a higher ductility compared to other samples. Jamaludin et al [24] claimed that the high ductility can be explained by observing the small and deep dimples on the fracture surface of the sample.…”

Section: Fracture Surface Of Cr Aa 5052 At Various Solution Treatmentsmentioning

confidence: 99%

Microstructure, mechanical and corrosion properties of cryorolled-AA5052 at various solution treatment temperatures

Anas

Abioye

Anasyida

et al. 2020

Mater. Res. Express

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Initial solution treatment (ST) of aluminium alloys prior cryorolling (CR) enhances the ultrafine grain structure formation hence, improving their mechanical and corrosion properties. However, determining the appropriate ST temperature is crucial to obtain the optimum properties. In this work, ST followed by cryorolling of AA 5052 alloy was performed at varying temperatures; 480°C, 510°C and 540°C. Mechanical and microstructural characterization of the cryorolled samples with and without ST and the base metal were performed using Vickers hardness tester, universal tensile testing machine, FESEM, EBSD and HRTEM. All the ST cryorolled samples showed the finer structure and better mechanical and corrosion performances than those without ST and the base metal. The smallest crystallite size and lattice strain achieved were 24.88 nm and 3.86×10 −3 respectively at 540°C. The hardness, yield and tensile strength increased with increasing the ST temperature with the highest values of 85.2 Hv, 254.82 MPa and 303.35 MPa, respectively, at 540°C. Cryorolled sample solution treated at 540°C also showed the highest corrosion resistance based on low corrosion current and high corrosion potential. The work gives the appropriate ST temperature at which improved microstructure, mechanical and corrosion properties of the cryorolled AA5052 can be obtained.

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Section: Fracture Surface Of Cr Aa 5052 At Various Solution Treatmentsmentioning

confidence: 99%

Microstructure, mechanical and corrosion properties of cryorolled-AA5052 at various solution treatment temperatures

Anas

Abioye

Anasyida

et al. 2020

Mater. Res. Express

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show abstract

“…The predominant presence of small dimples in the post-tempered samples can be attributed to occurrence of grain refinement (Panigrahi and Jayaganthan, 2011) while that of the postannealed sample is because of the reduction of the residual stresses at the joints. According to Jamaludin et al (2015), high ductility can be explained by observing the small and deep dimples on the fracture surface of the sample. As a result, the ductility was improved and this is proved by the occurrence of small dimples in the entire fracture surfaces of the PWHTed samples after the tensile test.…”

Section: Fracture Surface Analysismentioning

confidence: 99%

Effects of post-weld heat treatments on the microstructure, mechanical and corrosion properties of gas metal arc welded 304 stainless steel

Abioye

Omotehinse

Oladele

et al. 2020

WJE

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Purpose The purpose of this study is to determine the effects of post-annealing and post-tempering processes on the microstructure, mechanical properties and corrosion resistance of the AISI 304 stainless steel gas metal arc weldment. Design/methodology/approach Gas metal arc welding of AISI 304 stainless steel was carried out at an optimized processing condition. Thereafter, post-annealing and post-tempering processes were performed on the weldment. The microstructure, mechanical and electrochemical corrosion properties of the post-weld heat treated samples, as compared with the as-welded, were investigated. Findings The as-welded joint was characterized with sub-granular grain structure, martensite formation and Cr-rich carbides precipitates. This made it harder than the post-annealed and post-tempered joints. Because of slower cooling in the furnace, the post-annealed joint contained Cr-rich carbides precipitates. However, the microstructure of the post-tempered joint is more refined and significantly devoid of the carbide precipitates. Post-tempering process improved the elongation (∼23%), tensile (∼10%) and impact (∼31%) strengths of the gas metal arc AISI 304 stainless steel weldment, while post-annealing process improved the elongation (∼20%) and impact strength (∼72%). Owing to the refined grain structure and significant elimination of the Cr-rich carbide precipitates at the joint, the post-tempered joint exhibited better corrosion resistance in 3.5 Wt.% NaCl solution than the post-annealed and the as-welded joints. Originality/value The appropriate post-weld heat treatment that enhances microstructural homogeneity and quality of the AISI 304 gas metal arc welded joint was determined.

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Effect of rolling temperatures on mechanical and fracture behavior of AA 3003 alloy and pure Cu

et al. 2020

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Effect of Solution Treatment Temperature on Tensile Strength of Al-Mg-Si Alloy

Cited by 4 publications

References 8 publications

Microstructure, mechanical and corrosion properties of cryorolled-AA5052 at various solution treatment temperatures

Microstructure, mechanical and corrosion properties of cryorolled-AA5052 at various solution treatment temperatures

Effects of post-weld heat treatments on the microstructure, mechanical and corrosion properties of gas metal arc welded 304 stainless steel

Effect of rolling temperatures on mechanical and fracture behavior of AA 3003 alloy and pure Cu

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