Flow and fracture of austenitic stainless steels at cryogenic
In this paper, we have characterized the microstructural evolution and the plastic flow and fracture behaviours of AISI 304L and AISI 316LN stainless steel grades at liquid nitrogen temperature (77 K) and at liquid helium temperature (4 K).Uninterrupted tensile experiments, where the sample is continuously deformed under quasi-static …
Aisi 310 سفارشی با عرضه کافی
Table 1.1 Composition of AISI 310 ASS Elem ents C M n Si P S Cr M o Ni % 0.25 2.0 1.5 0.04 5 0.03 26 2.00- 3.00 22 2 Experimental procedure The pin type AISI 310 grade stainless steel were reduce into small pieces of size 30mm, diameter 8 mm, with
عملکرد مطلوب 440c پشتیبانی سفارشی
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Hydrogen effect on the passivation and crevice
AISI 304L samples (40 mm × 40 mm × 3 mm) were exposed to a circular area of electrolyte (0.58 M NaCl) of 1.76 cm 2 using a rubber O-ring. The measurements were continued during 20 h and were interrupted for measurements of electrochemical impedance spectroscopy (EIS). Due to electrochemical non-stability of the surface, EIS …
مقاله بررسی عملکرد ماشینکاری و خصوصیات سطحی فولاد آستنیتی AISI 304L …
بررسی عملکرد ماشینکاری و خصوصیات سطحی فولاد آستنیتی AISI 304L در ماشینکاری تخلیه الکتریکی با استفاده از الکترود های مس و گرافیتی در دی الکتریک آب مقطر و نفت سفید. محل انتشار: اولین کنفرانس ملی ...
Comparative study on weldability of Ti-containing TWIP and AISI 304L …
In this study, a pair of welds was made in austenitic stainless steel AISI 304L and the novel twinning-induced plasticity (TWIP) steel microalloyed with titanium. Microstructural characterization and mechanical assessment were conducted with the aim to compare the weldability of both materials. The weld joints were performed in two passes …
AISI 304L (S30403) Stainless Steel :: MakeItFrom.com
AISI 304L stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. 304L is the AISI designation for this material. S30403 is the UNS number. Additionally, the British Standard (BS) designation is 304S12. This material is well established: the Further Reading section below cites a number of …
Co-existence of γ
Commercial AISI 304L was included for comparison. For the austenitic alloys with a Cr content below 12 wt.%, a duplex layer is observed in the nitrided case where the interface between the top layer, consisting of γ ' -Fe 4 N like ordered γ ' N, and the disordered γ N (nitrogen enriched austenite) zone underneath is associated with a ...
Specification Sheet: Alloy 304/304L
Alloy 304/304L resists atmospheric corrosion, as well as, moderately oxidizing and reducing environments. The alloy has excellent resistance to intergranular corrosion in the as …
Effect of Powder-Pack Boronizing on the Microhardness, …
This study investigated the effect of powder-pack boronizing on the microstructure, hardness, and wear and corrosion behavior of AISI 304L austenitic stainless steel. Powder-pack boronizing was carried out using Baybora-1 boronizing agent for 2, 4, 6, and 8 h at 950 °C. Boronized AISI 304L steel exhibited a flatter and thinner morphology …
EIS monitoring study of the early microbiologically …
This study examined the early stages of tarnishing of American Iron Steel Institute (AISI) 304L austenitic stainless steel (SS) condenser tubes in contact with running freshwater from the Tagus River in Spain. The immersion time of the tubes was 569 days. Tarnishing originated by biofouling was assessed using electrochemical impedance …
Comparative study of AISI 304L to AISI 316L stainless
Weldability of stainless steels is perfect by using different welding methods in the various thickness. Dissimilar joint of 304L and 316L stainless steels is essential in some vacuum valve joints [14,15]. 316L has more Ni plus 2–3% molybdenum which causes higher corrosion resistance in comparison with 304L.
Low-pressure hollow cathode plasma source carburizing …
The AISI 304L austenitic stainless steel (chemical composition in Table 1) was used for carburizing. Samples of 17 mm in diameter and 8 mm in thickness were cut from a hot-rolled bar and wet ground with SiC emery paper up to grit #2000, and mirror-polished with 1.5 μm diamond paste. All samples were cleaned with acetone in an …
Effect of Oxide Fluxes on Depth of Penetration in Flux
Flux Bounded Tungsten Inert Gas (FBTIG) welding is a modified TIG welding process in which increased depth of penetration (DoP) can be achieved by laying thin flux coatings on either side of the weld centerline. The effect of three single component fluxes viz., SiO2, TiO2 and Cr2O3 on bead geometry of autogenous melt runs in AISI 304L …
Microstructure and Mechanical Properties of Friction Stir
Dissimilar friction stir welding of 304 austenitic stainless steel and 430 ferritic stainless steel was performed by using staggered butt joint configuration. Under proper heat input, welding experiments were carried out to study the effect of tooth dimension on material flow, microstructure evolution and mechanical properties of the joint. The results …
Effect of drawing and annealing on the microstructure and …
The chemical composition of the 304 austenitic stainless steel wire used in this experiment is shown in table 1, and the flow chart of the sample preparation is given in figure 1.Stainless steel wires with drawing strain variables of 0.4, 1.0 and 1.5 (Reduction of area 33%, 65% and 77%, respectively) were made by continuously drawing at room …
Comparison of Cycling High Temperature Corrosion at 650°C …
The high temperature corrosion at 650°C in the presence of NaCl at atmospheric pressure of AISI 304L, AISI 309, AISI 310S, AISI 314 and AISI 321 austenitic stainless steel was studied. The specimens were cyclically heated in the furnace and immersed in a 3.5% aqueous NaCl solution after cooling for 15 min. After each cycle, the …
Enhancement of Mechanical Properties for Dissimilar Welded …
High Cr–Ni content in AISI 304L gives better strength and corrosion resistant. For wire spool, AISI 316L is used because it has a higher level of corrosion resistance as compared to AISI 304L for its industrial applications. It has good amount of molybdenum (2.31%) that increase its resistance to pitting caused by chlorides, and AISI 316L is ...
Flow and fracture of austenitic stainless steels at cryogenic
A comprehensive analysis of the flow and fracture behaviours of austenitic stainless steels at low temperatures, as applied for the superconducting magnets used at CERN and ITER, is therefore essential. The manuscript is organized as follows. The austenitic stainless steels AISI 304L and AISI 316LN investigated in this work are …
Metals | Free Full-Text | Erosion–Corrosion of AISI 304L …
A comprehensive analysis of the erosion–corrosion behavior of AISI 304L stainless steel immersed in 0.5 M NaCl solution with the addition of industrial tailing particles obtained from the copper mining industry is reported. From fundamental studies using combined measurements of potentiodynamic and weight loss techniques, the pure …
Predicting microstructure and strength for AISI 304L …
Experimental methods. Table 1 provides the composition for the AISI 304L stainless steel used in this experiment. Bar stock, 152 mm in diameter, was forged down …
AISI 304 vs 304L Stainless Steel Properties (UNS …
AISI 304 and 304L (SS304L) are austenitic stainless steels, and also known as 18/8 stainless steel. This article will introduce the differences between 304 and 304L stainless …
Spot Welded Joints of Steels Produced by Electric Arc and
It was established that spot welded joints of steel of 0.5 mm thick austenitic-ferrite AISI 316Ti steel, as well as on 0.2 mm thick austenitic AISI 321 steel, optimal from the standpoint of weld geometry formation and the absence of defects in the form of cracks, lacks of penetration and burns, are formed during laser welding in a continuous ...
Aisi 304l قابل تنظیم پشتیبانی سفارشی
AISI 304L stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. 304L is the AISI designation for this material. S30403 is the UNS number. Additionally, the British Standard (BS) designation is 304S12. This material is well established: the Further Reading section below cites a number of ...
Numerical investigation of dissimilar friction stir welding of AISI …
However, to understand how welding parameters affect the thermal cycle and the material flow around the tool is essential to produce joints without defects. In this work, a numerical simulation of dissimilar joints of AISI 304L austenitic stainless steel with AISI 410S ferritic stainless steel using the FSW technique was performed.
توزیع کننده سفارشی aisi 304l
AISI 304 L DIN 1.4306 - X 2 CrNi 19 11 AFNOR Z 3 CN 18 10 Usinable - Trempable non Polissable + Magnétisable non Durcissable non MIG,TIG,WIG oui Arc oui Résistance oui Autogène oui Laser oui C Si Mn P S Cr Mo Ni Autres 0.030 1.00 2.00 0.045 0
Tensile properties and microstructural features of …
The results show that the chemical composition of the plates meets the requirements of UNS-S-30403 for an AISI 304L austenitic stainless steel. The as-built …
Microstructure Influence on Corrosion Resistance of Brazed AISI 304L …
In this study, the steel AISI 304L, a standard austenitic stainless steel, was chosen. One industrial filler metal BNi-5a® (Ni19Cr7.5Si1.5B, wt%) and two different rapidly solidified filler metal foils based on NiCrSiB system were produced to investigate the influence of the chromium and molybdenum content on the corrosion resistance.
Improvement of the corrosion behavior of AISI 304L …
The effects of deep rolling parameters, particularly, work speed and cooling conditions (dry and cryogenic) on the surface integrity of AISI 304L machined samples and their further impact on uniform and localized corrosion behavior in chloride environment were experimentally investigated in this work. The electrochemical behavior of machined …
Tailoring the strength-ductility balance of a commercial
The sequential twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) effects were induced in a commercial AISI 304L stainless steel by tailoring the average austenite grain size (via thermomechanical processing of cold rolling and reversion/recrystallization annealing), leading to a combination of high yield stress …
Hybrid Welding Process in Lieu of Conventional Practices for …
2.1 Details of Base metal and Consumables Used. Austenitic stainless steel plates of 12 mm thickness conforming to ASTM A 240 Type 304L (Ref 19) with other supplementary qualification, such as controlled chemistry, inclusion rating, IGC Pr C as per ASTM A 262 (Ref 20) & ultrasonic testing using angle and normal beam inspection as …
Metals | Free Full-Text | Detection of Phase Transformation …
This paper evaluates the suitability of the X-ray diffraction (XRD) technique to characterize the phase transformation during the metal forming of the metastable austenitic steel AISI 304L. Due to plastic deformation, phase transformation from γ-austenite into α′-martensite occurs. The XRD peaks at specific 2θ diffraction angles give …
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