Plate bending fatigue tests were conducted for the Mg-9mass%Al-1mass%Zn-2mass%Ca alloy joints prepared by friction stir welding under two different conditions of stress ratio 0 and -1. The limit FSW was above 80% that base metal all test conditions. Fracture origin observed at thermo-mechanically affected zone (TMAZ) in joints. higher than inert gas (MIG) tungsten (TIG) fused (FZ) both MIG join...

TMAZ, natural zeolite clinoptilolite with enhanced physicochemical properties, have been shown to possess antioxidant activity in humans. Modes of immunomodulation including superantigen-like action of ingested zeolite and perspectives of immunotherapeutic approaches for malignant and infectious diseases and autoimmune disorders are discussed. Accumulating evidence from preclinical studies and ...

Commercially pure titanium (CP-Ti) plates were friction-stir welded (FSWed) using a welding tool with tungsten carbide (WC) pin. The bead-on-plate technique was applied to reduce the effects of defects, such as incomplete penetration. An X-ray inspection and fractography showed that FSWed material free defects WC particles, which may have originated from tool. appearance refined equiaxed grains...

The local microstructure, texture gradient and mechanical properties through the shoulder dimension (10 mm) of upper lower AA5182 aluminum sheets were investigated using electron backscatter diffraction (EBSD) Vickers microhardness after friction stir spot welding (FSSW). Based on microstructural features (mean grain size, boundary type dynamic recrystallization (DRX)), sheet was found to be ma...

Background: AA2519-T87 is a new armour grade aluminium alloy employed in the fabrication of light combat military vehicles. Joining of this material using fusion welding processes, results in the formation of solidification defects like porosity, alloy segregation and hot cracking. In order to overcome the solidification related problems, solid state welding processes such as friction stir weld...

اساس برنامه‌ریزی و مدیریت صحیح داشتن آمار اطلاعات دقیق به‌هنگام است. یکی از مهم‌ترین بخش کشاورزی میزان تولید سالیانة هر محصول یا سطح زیرکشت ابزارهایی که در کمترین زمان با هزینة پایین دقت مناسب، می‌تواند محصولات را محاسبه کند دانش فنّاوری سنجش ‌از دور این تحقیق، دو روش طبقه‌بندی شبکة عصبی مصنوعی ماشین بردار پشتیبان استفاده‌ شده غالب منطقه، شامل هشت کلاس، تصاویر سری زمانی سنتینل‌ـ2 برآورد براساس ن...

Abstract The microstructure and corrosion processes of a friction stir welded (FSW) 7075-T6 aluminum alloy joint, before after anodizing surface treatment, have been characterized by advanced techniques, the feasibility treatment as mitigation method has evaluated. results showed that different zones FSW joint had distinctly consequently behavior in NaCl solution. Stable localized occurred tran...