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Effect of Precipitation Hardening on Deep Drawing of 6061 Al-Alloy

دوشنبه 12 مهر 1395
Effect of Precipitation Hardening on Deep Drawing of 6061 Al-Alloy

Effect of Precipitation Hardening on Deep Drawing of 6061 Al-Alloy

In this research, to investigate the effect of precipitation hardening on the deep drawing behavior of 6061 Al-alloy, first, the thickness of a 6061 Al-alloy sheet was decreased from 5 mm to 1 mm by four passes rolling and then, punched to obtain circular specimens with diameter of 80 mm. The specimens were heated in 528 deg;C for 60 min and then quenched in water and finally aged in 180 deg;C and 210 deg;C for 30, 120, 240, 360 and 480 min. After aging, they were quenched in water (25 deg;C). ...



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برچسب‌ها: effect، PrecipitatiHardening، Deep، Drawing، 6061، Al-Alloy

Effect of calcium carbonate nanoparticles on the crystallization kinetics PA66

دوشنبه 12 مهر 1395
Effect of calcium carbonate nanoparticles on the crystallization kinetics PA66

Effect of calcium carbonate nanoparticles on the crystallization kinetics PA66

Polyamide 66 (PA66) in engineering plastics are used. However, its poor strength, has limitedapplications. Thus, the strength of the PA66 highly regarded in the field has been modified.Generally, the strength of a plastic and elastomer matrix is reduced stiffness and heat resistanceFind a convenient way for the strength of PA66 without reducing stiffness and heat resistance ofpolymers is a key target for researchers in the fields. In this study, calcium carbonate nanoparticleshave been used for ...



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اثر ترکیب The Compound Effect

دوشنبه 5 مهر 1395
اثر ترکیب The Compound Effect

اثر ترکیب The Compound Effect

کتاب The Compound Effect یا اثر ترکیب زمان نوشته Darren Hardy با ترجمه فارسی ، کتاب بسیار عالی هست که تا بحال من خوندم واقعا جالبه به دوستان توصیه میکنم این کتاب ارزشمند را دانلود کنند واقعا فرمول موفقیت را بخوبی باز کرده در مقدمه کتاب دانشمند بزرگ موفقیت و روانشناسی آقای انتونی ...



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برچسب‌ها: ترکیب، Compound، effect

The Effect of Priming on Seed Performance of Canola (Brassica napus L.) Under Drought Stress

جمعه 26 شهریور 1395

The Effect of Priming on Seed Performance of Canola (Brassica napus L.) Under Drought Stress

Abstract: In order to investigate the effect of priming on canola seed performance under drought stress a studywas carried out at the Seed Research Laboratory of Razi University, Kermanshah, Iran. The experiment was afactorial with three factors arranged in a completely randomized design with three replications. The first factorwas seed priming (control (untreated), KNO and distilled water), the second was 3 drought stress levels (0.0, -0.3,-0.6, -0.9, -1.2 and -1.5 MPa) and the third was ...



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برچسب‌ها: effect، Priming، Seed، Performance، Canola، (Brassica، napus، under، Drought، stress

مقاله جوشکاری Electrical contact resistance effect on resistance spot welding

پنج‌شنبه 25 شهریور 1395

مقاله جوشکاری Electrical contact resistance effect on resistance spot welding

مقاله جوشکاری با عنوان : Electrical contact resistance effect on resistance spot welding P.S. Wei a,., T.H. Wub چکیده : The effects of local electrical contact resistance on transport variables, cooling rate, solute distribution,and nugget shape after solidification responsible for microstructure of the fusion zone during resistancespot welding are realistically and systematically investigated. The model accounts for electromagneticforce, heat generation ...



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مقاله جوشکاری Welding time effect on mechanical properties of automotive sheets in electrical resistance spot welding

پنج‌شنبه 25 شهریور 1395

مقاله جوشکاری Welding time effect on mechanical properties of automotive sheets in electrical resistance spot welding

مقاله جوشکاری با عنوان : Welding time effect on mechanical properties of automotivesheets in electrical resistance spot welding S. Aslanlar a,*, A. Ogur b, U. Ozsarac a, E. Ilhan a چکیده: In this study, the effects of welding time on the tensile-peel strength and tensile-shear strength of welding joints in electrical resistancespot welding of chromate micro-alloyed steel sheets having 1.2 mm thicknesses were investigated. A timer and current controlled ...



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