Precipitation-hardening (PH) stainless steels (SS) are widely used in various aerospace applications. These exhibit good mechanical and corrosion resistance. The electrochemical behavior of 15-5PH, 17-4PH, Custom450 AM 350 passivated with citric nitric acid baths for 60 90 min at 25 49 °C were evaluated 5 wt.% sodium chloride (NaCl) 1 sulfuric (H2SO4) solutions. was studied potentiodynamic pola...

Abstract By the term, lattice structures are intended topologically ordered open-celled consisting of one or more repeating unit cells. Technological development and especially growth additive manufacturing (AM) industry allows innovative structural design, including complex structure. Selective laser melting (SLM) is an AM process that enables manufacture space filling structures. This work in...

Using uniaxial tensile and hardness testing, we evaluated the variability and anisotropy of the mechanical properties of an austenitic stainless steel, UNS S17400, manufactured by an additive process, selective laser melting. Like wrought materials, the mechanical properties depend on the orientation introduced by the processing. The recommended stress-relief heat treatment increases the tensil...

Material extrusion additive manufacturing of metal (metal MEX), which is one the 3D printing processes, has gained more interests because its simplicity and economics. Metal MEX process similar to conventional injection moulding (MIM) process, consisting feedstock preparation powder polymer binders, layer-by-layer MEX) or create green parts, debinding remove binders sintering consolidated metal...

در صنعت پالایشگاه و پتروشیمی‌ها به دلیل وجود تجهیزات تمام فلزی محیط اسیدی خوردگیتنشی زیاد است با توجه افزایش کاربرد فولادهای زنگ نزن این صنایع پژوهش بررسی اثر ضربات امواج اولتراسونیک بر رفتار خوردگی فولاد 316 (S.S 316) می‌پردازیم. هدف از تأثیر روش تنش‌زدایی برافزایش مقاومت قطعات محیط‌های خورنده است. لازم ذکر که، تنش پسمان نمونه‌ها جوش‌کاری ایجادشده ابتدا نمونه مدنظر استفاده ارتعاش تحت فرکانس 20...

Abstract Due to near netshape production, powder metallurgically manufactured (PM) gears have a high potential increase cost and resource efficiency. Compared conventionally machined gears, the advantages of PM are different local density distribution in component integration secondary design elements. These accompanied by reduction weight possibility optimizing NVH-behavior gear. may be both, ...