The microstructure, low-cycle fatigue property, and fracture behavior of as-received and aluminized steel were investigated at room temperature, respectively. The results reveal that the aluminized layer is mainly composed of three layers: (I) the external Al2O3 layer, (II) the transition Fe-Al mesophase layer, and (III) the diffusion layer with …

Nkhoma et al. [22] compared the hot compression behavior of AISI 304 and 321 austenitic stainless steels and concluded that the AISI 321 steel is softer than AISI 304 steel during deformation in the temperature range of 800–1200 °C. Their work was mainly focused on the mathematical analysis of the hot flow curves and deriving relationships ...

Optimizing the parameters in the milling method is important in terms of cost, energy, and time. The forces that arise during milling cause undesirable results, such as tool wear and energy loss. In this study, cutting parameters were optimized during the milling of AISI 321 material. Cutting speed (60, 70, 80 m/min), feed per tooth (0.04, 0.05, 0.06 …

M.S. Ghazani, B. Eghbali Materials Science & Engineering A 730 (2018) 380–390 Table 1 Nkhoma et al. [22] compared the hot compression behavior of AISI 304 Chemical composition of the AISI 321 austenitic stainless steel used in the and 321 austenitic stainless steels and concluded that the AISI 321 steel is present study.

In the present research, the hot deformation microstructure of AISI 321 austenitic stainless steel was studied by performing hot compression tests in the temperature range of 800–1200 °C and strain rates of 0.001–1 s −1. Microstructural evolutions were studied using transmission and scanning electron microscope equipped …

The role of grain size and strain rate on the corrosion behavior of plastically-deformed Ti-stabilized austenitic stainless steel (AISI 321) in saline media was investigated. The as-received ...

AISI 321 is an austenitic stainless steel (ASS) stabilized with titanium to reduce grain boundary sensitization, yet they possess relatively low yield strength that hinders their …

The three steels used in our experiments were X6CrNiTi18–10, X17CrNi16-2 and 30NiCrMo16, which are designated by their common names 321, 431 and FDMA steel materials, respectively. Table 1 gives the chemical compositions expressed in weight percent (wt%); their average densities ( ) were calculated to be 7.808, 7.709, and 7.856 g …

AISI 321 steel is widely used in the production of heat-exchange equipment [].However, just as the other 18-10-type steels, it may suffer pitting corrosion in circulating chloride-containing waters [2, 3].Most often, the pitting resistance of steels is evaluated by electrochemical methods in chloride-containing solutions with elevated concentrations …

J 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 …

Microstructures of AISI 321 austenitic stainless steel after deformation with strain rate of 0.01 s −1 at different temperatures: a) 800, b) 850, c) 900, d) 950, e) 1000, f) 1050, g) 1100, h ...

The chemical composition of the AISI 321 austenitic stainless steel used in the present study is shown in Table 1.Hot compression experiments were conducted with samples of 10 mm diameter and 15 mm height, over a temperature range of 800–950 °C and at strain rates of 0.001, 0.01, 0.1 and 1 s −1.Initially samples were heated to 1200 …

AISI 321 stainless steel (40 × 10 × 5 mm) and 1050 aluminum ingot (50 mm in diameter and 50 mm in length) were used to carry out the aluminizing experiments. The …

در این پژوهش، خواص اتصال فولاد زنگ‌نزن آستنیتی ۳۲۱ از دیدگاه ریزساختاری، مکانیکی و خوردگی مورد بررسی قرار گرفته شده است. به‌منظور دستیابی به عامل‌های بهینه فرایند جوشکاری قوسی تنگستن-گاز با جریان ضربانی (pcgtaw) از روش ...

Cite this article. Musazadeh, M.H., Vafaei, R., Mohammad Sharifi, E. et al. Mechanical Properties, Microstructural Evolution, and the Effect of Friction on the Plastic …

This paper reported the results of research into the effect of Equal Channel Angular Pressing (ECAP) temperature and 1-h annealing temperature on mechanical properties, stress-relaxation resistance, and corrosion resistance of austenitic steel AISI 321L with strongly elongated thin δ-ferrite particles in its microstructure. The formation of …

The mechanical properties, microstructural evolution, and the effect of friction on the plastic flow of the AISI 321 austenitic stainless steel (ASS) tube were investigated during the cold pilger process. The elastic–plastic behavior of as-received tube was simulated by the Johnson-cook model. The model parameters were obtained by the …

فولاد های ضد زنگ فریتی از نظر خواص مشابه فولاد های ساده کربنی هستند, با این تفاوت که با افزایش درصد کروم (تا 27 درصد) در این گروه از فولاد, خصوصیت مقاومت به خوردگی و زنگ زدگی در آنها ایجاد شده است, در این گروه از فولاد فاز

The specimens were made of AISI 321 ASS with the composition (wt.%): C 0.04, Si 0.54, Ti 0.48, Mn 1.33, Cr 17.55, Ni 9.00 and Fe balance. ... The microhardness of nitrided layers as a function of nitriding time is shown in Fig. 10 where the hardness increased with the increase of nitriding time. The increase in hardness with increasing ...

Summary. AISI 316 belongs to the austenitic stainless steel class. The addition of the alloying elements brings high corrosion resistance by the formation of a protective oxide layer on the material surface, with good ductility and thoughness. AISI 316L has lower C content, which improves the resistance to intergranular corrosion.

In AISI 321 steels, titanium additives prevent the precipitation of chromium carbides and thereby reduce the tendency to intergranular corrosion [ 1, 19, 20 ]. …

Global stainless steel giant Acerinox delves into the key differences between two well-known types of stainless steel, AISI-316L and AISI-316Ti, commonly used in applications for: water filtration, deonization, mold release, and solvent applications, to name just a few. Both materials are evaluated on their resistance to pitting and localized ...

Laser peening without coating (LPwC) was performed on austenitic stainless steel AISI 321 with a power density of 5.97 GW cm − 2 and pulse densities of 1600, 2500 and 3900 pulses cm − 2. A large compressive residual stress resulted for 1600 pulses cm − 2. Surface roughness was found to have increased to a relatively smaller extent with ...

Also, recommended the usage of filler material with niobium up to 1%. Raghavendra et al. (Ref 19) conducted a failure examination on a welded tube of AISI 321 which functioned as a bleed air connector of an aircraft engine exposed to a service life of 7 years and 81 days. The working temperature of the pipe was 203-250 °C, and failure is ...

در این پژوهش اتصال غیر‌همجنس فولاد کم‌آلیاژ استحکام‌ بالای 65x به فولاد زنگ‌نزن آستنیتی 321 با استفاده از فرایند جوشکاری قوسی دستی با دو الکترود 308 و 309 انجام شد. در ادامه، ساختار، ریزساختار، سختی و استحکام کششی اتصالات ...

Surface 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 …

To inhibit the undesired grain boundary segregation (sensitization), a Ti-stabilized AISI 321 austenitic stainless steel (a derivative of AISI 304) was developed to …

The production of compensators (expansion joints), and especially of bellows as their most demanding elements, requires the usage of stainless materials. These stainless materials exhibit certain particularities at welding (and quality control) since they are very thin, i.e., their thickness ranges usually from 0.12 to 3.00 mm. This paper starts …

The mechanism of pitting in AISI 321 in chloride solution is proposed. (a-c) Grain size distribution estimated from large scan area, (d-f) EBSD band contrast maps with twins and (g-i) TEM ...

321 Stainless Steel | aisi 321 Stainless Steel | SS321 | SUS321. SUS321 and SUS347 are the basic austenitic 18/8 steel (SUS 304) stabilised by Titanium (SUS321) or Niobium (SUS347) additions. These grades are used because they are not …