...Jian Song; Xiyang Liu; Haoming Du; Miaosen Yang Purpose In industrial manufacturing, the precise detection of surface defects in steel is crucial, as it directly affects product quality and production efficiency. Existing methods for detecting surface defects in steel still have many shortcomings...

... and mesostructural characteristics of the ME BASF Ultrafuse Steel 316L metal parts. These characteristics can affect the structural integrity of the produced parts and components used in various engineering applications. Design/methodology/approach Recent studies on the ME BASF Ultrafuse Steel 316L are reviewed...

... deterioration of the structures. Under these conditions, the need for management of the problem of resistance of steel against corrosion is an issue of paramount importance and a challenge to the structural integrity and reliability. The paper aims to discuss these issues. Design/methodology/approach...

...Ch. Alk. Apostolopoulos; Vassilios Kappatos Purpose The corrosion of reinforcing steel bars reduces significantly the life and durability of concrete structures. This critical concern causes great losses to the economy and industry. The purpose of this paper is to estimate the effects of corrosion...

...Keiji Houjou; Koji Takahashi; Kotoji Ando Purpose The purpose of this paper is to investigate the effect of shot peening (SP) on the fatigue limit of high‐tensile‐strength steel containing a crack in the stress concentration zone. Design/methodology/approach An artificial semi‐circular slit...

...Sp. Pantelakis; Spyros A. Papaefthymiou Purpose Steel heavy plates, grade S355, micro‐alloyed with Vanadium‐V and/or Niobium‐Nb plus Titanium‐Ti in thicknesses from 5 to 60 mm, 200.000‐350.000 t/y, are produced according to EN 10025 at STOMANA S.A., a company of the SIDENOR Group in Pernik...

...Koji Takahashi; Hideki Okada; Kotoji Ando Purpose The purpose of this paper is to clarify the effects of shot peening (SP) on the torsional fatigue limit of high‐strength steel specimens containing an artificial small defect. Design/methodology/approach Specimens containing a drilled hole 0.1...

...Paulo M. S. T. de Castro; Pedro M. G. P. Moreira; Andreas Öchsner; C.M.C. Albuquerque; R.M.C. Miranda; V. Richter‐Trummer; M.A.V. de Figueiredo; R. Calçada; P.M.S.T. de Castro Purpose The purpose of this paper is to study the fatigue crack growth (FCG) behaviour of the steel and weldments...

... the specimen endured 2.0 × 10⁶ cycles. The stress intensity factor was calculated in accordance with ASTM E399. Austenitic stainless steel, SUS316, and heat‐treated steel, HT540 were selected as test materials. The 0.2 percent proof stresses of SUS316 and HT540 are 286 and 1,250 MPa...

... steel structures. Therefore, an experimental database for validation purpose was generated. Subsequently, a finite element model was developed in LS‐DYNA in order to reproduce the tests. The behaviour of water was modeled by using the smoothed particle hydrodynamics (SPH) methods. Numerical simulations...

...Koji Takahashi; Toshihiko Amano; Kotoji Ando; Fumio Takahashi Purpose The paper's aim is to investigate the effects of shot peening (SP) on the bending fatigue limit of high‐strength steel containing an artificial semi‐circular slit. Design/methodology/approach SP and stress SP (SSP) were...

... and the fatigue lives of the welding joints. Design/methodology/approach LPwC conditions for 490 MPa grades of structural steels were selected. By using the conditions, the characteristic at the laser‐peened welded zone, residual stresses, hardness and roughness of welding toes were examined. Moreover...

... their reliability, can be substantially increased by tensile overloading prior to use. The purpose of this paper is to investigate the effect of tensile overload on small cracks by applying a tensile overload to steel plates containing semicircular slits that simulate small surface cracks and by determining...

... N_i. Research limitations/implications This paper provides an estimation of N_i in 3 mm thick mild steel plates subjected to constant amplitude uniaxial cyclic stresses. Initiated‐but‐non‐propagating cracks possibly found at the notch surface and at the notch root along...

...Ch. Alk. Apostolopoulos; C.A. Rodopoulos Purpose Seismic loading can induce significant deformations to steel reinforcement. The recent approach suggested by Eurocode 8 indicates that steel reinforcement shall sustain repeated loading well within its elastic region, excluding by definition seismic...