AISI 321. Under the standardization AISI 321, we understand the following steel grade in the German material system: 1.4541 – X6CrNiTi18-10 (AISI 321) The Material 321 is a stainless, austenitic steel in where the carbon is bonded by the carbide-forming agent titanium. For this reason, welding can be performed without the risk of ...
بیشترAISI 321 metastable austenitic stainless steel (MASS) with nominal composition (in weight %) of 17.61 Cr, 9.17 Ni, 1.56 Mn, 0.42 Mo, 0.40 Si, 0.36 Ti, 0.30 Cu, 0.15 Co and 0.044 C was studied. This steel was received in hot-rolled condition. The alloy is stabilized with titanium and has FCC structure and low stacking fault energy.
بیشترAISI 321 stainless steel contains 0.44% Ti to stabilize C, which reduces intergranular precipitates such as M23C6. This steel therefore has excellent intergranular …
بیشترThe objective of this work was to analyze a reported pitting damage mechanism in water piping of a power plant. The investigated material was a longitudinal-seam welded pipe which was made of AISI 321 austenitic stainless steel. Pitting occurred on the internal surfaces of the pipe and adjacent to the girth welds. Optical emission …
بیشتربررسی رفتار تغییر شکل داغ فولاد زنگنزن 321 توسط آزمون فشار داغ و شبیهسازی آن با استفاده از معادلات ساختاری ... Kim, S., and Yoo, Y. C., "Dynamic Recrystallization Behavior of AISI 304 Stainless Steel", Material Science and Engineering, Vol. 25, pp. 108 ...
بیشترAISI 321 stainless steel (SS321) is basically type 304with the addition of titanium (Ti), which stabilizes carbides against sensitization to prevent intergranular precipitation of chromium carbide when the steel is heated to a temperature within the sensitization range (such as during …
بیشترScientific Reports - Corrosion behavior of metastable AISI 321 austenitic stainless steel: Investigating the effect of grain size and prior plastic deformation on its …
بیشترAbout Slitina 321. Nerezová slitina Alloy 321 je stabilizována titanem a obvykle se používá v teplotním rozmezí 538-870 °C. Pokud provozní teploty dosahují hodnoty přibližně 870 °C, je možné použít stabilizační zpracování při teplotě 842-899 °C a ochlazení vzduchem k zajištění optimální odolnosti vůči ...
بیشترGrade 321 stainless steel machinability is 36% in annealed conditoin based on a machinability rating of 100% for 1212 steel. Nominal speeds and feeds for turning a variety of steels and cast irons with high-speed steel (HSS) single-point and box tools. Material. Hardness, HB. Condition. Depth of cut, mm (in) High-speed steel tool. Tool material.
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بیشترپخش زنده شبکه ۳ ، تماشای آنلاین تلویزیون اینترنتی تلوبیون ، پخش زنده شبکه 3 پخش آنلاین شبکه ۳ ، فوتبال پرسپولیس ، پخش شبکه سه سیما در تلوبیون ، پخش زنده فوتبال ، مشاهده آنلاین و اینترنتی شبکه 3 ، تلوبیون مرجع پخش زنده ...
بیشترJ Mater Sci (2008) 43:536–540 DOI 10.1007/s10853-007-1785-5 5TH BRAZILIAN MRS MEETING Influence of stabilization heat treatments on microstructure, hardness and intergranular corrosion resistance of the AISI 321 stainless steel V. Moura Æ Aline Yae Kina Æ Se´rgio Souto Maior Tavares Æ L. D. Lima Æ Fernando B. Mainier Received: 27 …
بیشترIn this study, the hot deformation behavior of austenitic Ti-modified AISI 321 steel with a relatively high content of carbon (0.07 wt.%) and titanium (0.50 wt.%) was studied in the temperature range of 1000–1280 °C and strain rates in the range of 0.01–1 s −1.Hot deformation was carried out with uniaxial compression of cylindrical specimens …
بیشترTo investigate the deformation-induced martensite and dynamic strain aging (DSA) during cyclic deformation in AISI 321, fatigue tests were carried out at strain amplitude 0.5% and 0.9% at room temperature (RT), 550 °C and 650 °C. Optical microscope and scanning electron microscope were used to observe the crystal grains and fracture …
بیشتر000000. 321 Stainless Steel Sheet Metal. Choose from our selection of 321 stainless steel in a wide range of styles and sizes. In stock and ready to ship.
بیشترThe titanium content of 321 stainless steel preserves corrosion resistance around weld points. This material maintains its corrosion resistance in temperatures up to 1500° F.. Foil is often used as a heat-treating wrap in temperatures up to 2000° F. It is furnished with a crimping tool.. For technical drawings and 3-D models, click on a part number.
بیشترIn the present study, AISI 321 austenitic stainless steel was cryo-rolled at 77 K (−196 °C) to a 20, 50, and 90% thickness reduction to investigate its microstructure and texture evolutions.
بیشترپیش بینی رفتار سیلان داغ فولاد زنگ نزن aisi 321 در حین وقوع بازیابی دینامیکی با استفاده از شبکه عصبی و رابطه بنیادین سینوس هایپربولیک نویسنده: ...
بیشترAlloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure …
بیشترSurface topography and elemental composition of craters formed on the surface of AISI 321 stainless steel after processing with powerful pulsed flows of C n+ and H + ions (accelerating voltage: 250 keV, pulse duration: approximately 100 ns) are studied. Processing is performed using single-pulse fluences of 1 and 3 J/cm 2, with the number …
بیشتر321 stainless steel (UNS S32100) is a titanium stabilized austenitic stainless steel that features improved resistance to intergranular corrosion. This grade is suitable for high …
بیشترIn the present investigation, an attempt has been made to join Hastelloy C-276 nickel-based superalloy and AISI 321 austenitic stainless steel using ERNiCrMo-4 filler. The joints were fabricated by continuous and pulsed current gas tungsten arc welding processes. Experimental studies to ascertain the structure-property co-relationship with …
بیشترA 6 mm thick AISI 321 austenitic stainless steel plate was selected as the candidate material for this study. The bead on a plate with a dimension of 300 × 110 × 6 mm is sliced and cleaned with a steel wire brush and acetone with a soft cloth before welding. Table 1 lists the chemical composition of the selected AISI Grade 321 steel.
بیشترGrades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850 °C. Grade 321 is the grade of choice for applications in the temperature ...
بیشترThe martensitic microstructure was achieved in the weld metal adjacent to the AISI 630 side and austenitic-ferritic microstructure was obtained near the AISI 321 side. The microhardness tests showed that the maximum hardness was produced for the 630 stainless steel side and the minimum hardness was occurred for the 321 stainless steel …
بیشترModified AISI 321 is an austenitic stainless steel used in structural applications of cryogenic rocket engines. This alloy has 0.07 – 0.12 wt.% carbon against 0.08 maxi-
بیشترThe differences in hot working constants found between these two steels are most significant in the activation energies (465,000 J/mol for 321 and 446,000 J/mol for 304) and the structure factors A3 (9.76 × 10 17 MPa −1 s −1 for 321 and 2.14. × 10 17 MPa −1 s −1 for 304) while all other constants show relatively minor differences if ...
بیشترIn the present work, the effect of ultrasonic impacts on the TIG welding microstructure and mechanical properties of AISI 321 stainless steel was investigated and the main effective mechanism was discussed. Metallographic results reveal that ultrasonic impacts induce mechanical shock in the weld metal and change the size and morphology …
بیشترAISI 321 material has excellent resistance to corrosion . Widely used in automotive industries, jet aircraft components, welded pressure vessels in the defence sector and high-speed impact on firewalls, the encounter of static and dynamics loads on AISI 321 is a common problem. The demand for the controlled weld shape and deeper …
بیشتر1. Introduction. AISI 321 austenitic stainless steels, owing to a good combination of admirable corrosion resistance [1], satisfied attrition behavior [2], prominent fatigue and creep strength [3], are widely used as heat exchangers in solar thermal generation [4].During service, the heat exchangers are usually subjected to thermal and …
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