نتایج جستجو برای: 718
تعداد نتایج: 2710 فیلتر نتایج به سال:
Selective laser melting (SLM) has been applied to manufacture various alloy components with excellent properties, but its further application is restricted by the intrinsic defects. In this work, internal defect distributions in samples of three alloys (316L stainless steel, AlSi10Mg and Inconel 718) were investigated respectively, considering effects geometrical characteristics samples. The de...
در این مقاله، عملکرد ابزار با پوششهای چند لایه نانوکریستال با ترکیب tin+tialn برای ماشینکاری سوپر آلیاژ پایه نیکل اینکونل 718 در شرایط برشکاری خشک و مرطوب مورد مطالعه قرار گرفته است. برای این منظور پوشش چند لایه tin و tialn با ساختار نانوکریستال توسط فرایند رسوب فیزیکی بخار و با روش قوس تبخیری بر اینسرت هایی با ترکیب کاربید تنگستن- کبالت اعمال شد. نتایج حاصل از آزمون سایشی بال بر دیسک و همچنی...
The application of accurate constitutive relationship in finite element simulation would significantly contribute to accurate simulation results, which play critical roles in process design and optimization. In this investigation, the true stress-strain data of an Inconel 718 superalloy were obtained from a series of isothermal compression tests conducted in a wide temperature range of 1153–135...
1 categorization. 2 3 4 Mitchell Steinschneider, MD, PhD 5 Department of Neurology 6 Albert Einstein College of Medicine 7 Rose F. Kennedy Center, Room 322 8 1300 Morris Park Avenue 9 Bronx, NY 10461 10 Tel: 718-430-4115 11 Fax: 718: 430-8588 12 e-mail: [email protected] 13 14 The ability to almost effortlessly encode the phonemic content of running speech is a 15 remarkab...
BACKGROUND The early and noninvasive differentiation of ischemic and nonischemic acute heart failure (AHF) in the emergency department (ED) is an unmet clinical need. METHODS AND RESULTS We quantified cardiac hemodynamic stress using B-type natriuretic peptide (BNP) and cardiomyocyte damage using 2 different cardiac troponin assays in 718 consecutive patients presenting to the ED with AHF (de...
Affective sciences are of burgeoning interest and are attracting more and more research attention. Three components of stimuli meaning have traditionally been distinguished: valence (degree of pleasantness), arousal (degree of intensity of sensations), and dominance (degree of control over sensations). Recently, another three dimensions have been introduced to measure qualities connected to the...
OBJECTIVE To investigate the association of NFKB1 -94 ins/del ATTG, NFKBIA -826C>T and NFKBIA -881A>G polymorphisms with risk of lung cancer in a Chinese population. METHODS Genotyping of the polymorphisms were performed on 1,436 subjects (718 cases and 718 controls) by using PCR-RFLP technique, followed by DNA sequencing. RESULTS We found a significant risk reduction associated with hetero...
Grain growth experiments were performed on InconelTM 718 to investigate the possible correlation of the annealing twin density with grain size and with annealing temperature. Those experiments were conducted at different temperatures in the supersolvus domain and under such conditions that only capillarity forces were involved in the grain boundary migration process. In the investigated range, ...
the author presents a study of •!718 histological examfnation of lymphatic glands carried out in the department of pathology of tehran faculty of medicin in the last 20 years. tuberculosis shows a high frequency with 1891 cases of which, 1034 cases were female. other affections listed below were much more commun amongst the male. after tuberculosis the following conditions were seen in the orde...
In this study, four protective coating materials: Inconel 718, 625, Alloy 33 and Stellite 6 were deposited on 16Mo3 steel tubes by means of CMT (Cold Metal Transfer), as an advanced version MAG (Metal Active Gas) welding method. the next step, surface was remelted TIG (Tungsten Inert SEM microstructure coatings–substrate has been reported, EDX-researched chemical composition coatings compared t...
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