Testing, modelling and design of hot-rolled stainless steel channel sections under combined compression and minor-axis bending moment

2022 ◽  
Vol 172 ◽  
pp. 108836
Author(s):  
Shuai Li ◽  
Lulu Zhang ◽  
Ou Zhao
Keyword(s):  
Stainless Steel ◽  
Bending Moment ◽  
Minor Axis ◽  
Hot Rolled

Influence of Yield Strength Variability over Cross-Section to Steel Beam Load-Carrying Capacity

2005 ◽  
Vol 10 (2) ◽  
pp. 151-160 ◽  
Author(s):  
J. Kala ◽  
Z. Kala
Keyword(s):  
Yield Strength ◽  
Cross Section ◽  
Carrying Capacity ◽  
Bending Moment ◽  
Statistical Characteristics ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Strength Variability ◽  
Hot Rolled ◽  
Hot Rolled Steel

Authors of article analysed influence of variability of yield strength over cross-section of hot rolled steel member to its load-carrying capacity. In calculation models, the yield strength is usually taken as constant. But yield strength of a steel hot-rolled beam is generally a random quantity. Not only the whole beam but also its parts have slightly different material characteristics. According to the results of more accurate measurements, the statistical characteristics of the material taken from various cross-section points (e.g. from a web and a flange) are, however, more or less different. This variation is described by one dimensional random field. The load-carrying capacity of the beam IPE300 under bending moment at its ends with the lateral buckling influence included is analysed, nondimensional slenderness according to EC3 is λ¯ = 0.6. For this relatively low slender beam the influence of the yield strength on the load-carrying capacity is large. Also the influence of all the other imperfections as accurately as possible, the load-carrying capacity was determined by geometrically and materially nonlinear solution of very accurate FEM model by the ANSYS programme.

Effect of pure iron interlayer on microstructure and properties of hot-rolled stainless steel clad plate

2021 ◽  
Vol 28 ◽  
pp. 102497
Author(s):  
Chao Yu ◽  
Zejun Deng ◽  
Shujie Liang ◽  
Hong Xiao ◽  
Yunpeng Zhao
Keyword(s):  
Stainless Steel ◽  
Pure Iron ◽  
Microstructure And Properties ◽  
Stainless Steel Clad Plate ◽  
Hot Rolled

Ratcheting assessment of corroded elbow pipes subjected to internal pressure and cyclic bending moment

2021 ◽  
pp. 030932472198989
Author(s):  
Ali Salehi ◽  
Armin Rahmatfam ◽  
Mohammad Zehsaz
Keyword(s):  
Growth Rate ◽  
Stainless Steel ◽  
Internal Pressure ◽  
Bending Moment ◽  
Axial Direction ◽  
Hoop Strain ◽  
Cyclic Bending ◽  
High Fatigue ◽  
The Impact ◽  
Cyclic Bending Moment

The present study aimed to study ratcheting strains of corroded stainless steel 304LN elbow pipes subjected to internal pressure and cyclic bending moment. To this aim, spherical and cubical shapes corrosion are applied at two depths of 1 mm and 2 mm in the critical points of elbow pipe such as symmetry sites at intrados, extrados, and crown positions. Then, a Duplex 2205 stainless steel elbow pipe is considered as an alternative to studying the impact of the pipe materials, due to its high corrosion resistance and strength, toughness, and most importantly, the high fatigue strength and other mechanical properties than stainless steel 304LN. In order to perform numerical analyzes, the hardening coefficients of the materials were calculated. The results highlight a significant relationship between the destructive effects of corrosion and the depth and shape of corrosion, so that as corrosion increases, the resulting destructive effects increases as well, also, the ratcheting strains in cubic corrosions have a higher growth rate than spherical corrosions. In addition, the growth rate of the ratcheting strains in the hoop direction is much higher across the studied sample than the axial direction. The highest growth rate of hoop strain was observed at crown and the highest growth rate of axial strains occurred at intrados position. Altogether, Duplex 2205 material has a better performance than SS 304LN.

Effect of carbon content on microstructure and mechanical properties of hot-rolled low carbon 12Cr–Ni stainless steel

2010 ◽  
Vol 527 (27-28) ◽  
pp. 7407-7412 ◽  
Author(s):  
H. Zheng ◽  
X.N. Ye ◽  
J.D. Li ◽  
L.Z. Jiang ◽  
Z.Y. Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Carbon Content ◽  
Low Carbon ◽  
Microstructure And Mechanical Properties ◽  
Hot Rolled

Cyclic Strain Accumulation of Plain Stainless Steel Pressurized Cylinders Subjected to Dynamic Bending Moment

2008 ◽  
Vol 8 (18) ◽  
pp. 3129-3138 ◽  
Author(s):  
M. Zehsaz ◽  
S.J. Zakavi ◽  
H. Mahbadi ◽  
M.R. Eslami
Keyword(s):  
Stainless Steel ◽  
Bending Moment ◽  
Cyclic Strain ◽  
Strain Accumulation ◽  
Dynamic Bending

Process Analysis and Trial Tests for Hot-Rolled Stainless Steel/Carbon Steel Clad Plates

2019 ◽  
Vol 51 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Z. Y. Chen ◽  
J. X. Li ◽  
Z. G. Lin ◽  
J. J. Qi ◽  
L. Sun ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Process Analysis ◽  
Hot Rolled

Microstructure, Texture, Mechanical and Corrosion Performance of the Stainless Duplex Steel UNS S32205 Submitted to Warm Rolling

2018 ◽  
Vol 941 ◽  
pp. 118-123
Author(s):  
Dagoberto Brandão Santos ◽  
Raphael França Assumpção ◽  
Daniela Barçante Perasoli ◽  
Dalila Chaves Sicupira
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Duplex Stainless Steel ◽  
Warm Rolling ◽  
Optical Scanning ◽  
Transmission Electron ◽  
Duplex Steel ◽  
Hot Rolled ◽  
Chlorine Ion

The UNS S32205 duplex stainless steel was warm rolled at 600°C with 60 and 80% of thickness reduction. The microstructure was characterized by optical, scanning and transmission electron microscopy, X-ray diffractometry and EBSD. The corrosion resistance was evaluated by electrochemical behavior in the chlorine ion environment using potentiodynamic polarization measurements. The tensile strength reached 1185 MPa and 1328 MPa, after warm rolling with 60 and 80%, respectively. In steel as-supplied, hot rolled and annealed, the tensile strength was 774 MPa. Ferrite microtexture presented the α-fiber and the rotated cube component, while the austenite enhanced the brass, copper, and cube components to a lesser extent. The substructure was characterized by intense formation of tangles and forests of dislocations and discrete subgrains in the ferritic phase and by planar gliding of dislocations and formation of dense dislocations walls in the austenite. Despite the existence of a certain similarity among the values of pitting potentials obtained for all samples, the number of pits observed was higher in the as-received sample, followed by the samples with 60 and 80% reduction. These results draw attention to innovative routes in the industrial production of duplex stainless steel of this class, even considering ductility lost. Keywords: Warm rolling; Mechanical strength; Texture; Substructure; Corrosion resistance

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