... welding hacc proceedings transformation test piece microstructure bead hardness hydrogen hydrogen concentration high strength steel inspection plastic strain steel fusion zone simulation prediction diffusion ABSTRACT Hydrogen-assisted cold cracking (HACC) is one...

... to an increase in H concentration. The ductility will consequently be deteriorated to a certain extent and H induced failure issues arise (Olden, 2009). Moreover, in the automotive industry, advanced high strength steels are progressively more used since they guarantee an improved safety together with weight...

... standards should be taken into account. INTRODUCTION High strength steels with yield strengths up to 700 MPa are widely used in Jack-up rigs since many years, whereby the main applications are legs, spud cans, racks and pinions where the advantages of thinner sections, like less weight, less welding...

... characterization limnell fracture property pala dzioba neimitz high strength steel hydraulic fracturing size effect master curve artificial intelligence Estimating Low Temperature Fracture Properties for Very High Strength Steels Kim Wallin, Päivi Karjalainen-Roikonen VTT Technical Research Centre...

... Abstract The history and progress of development and improvement involving the latest techniques in Japan are introduced and reviewed in welding consumables for high strength steels (over 500MPa yield strength) for low temperature service which has been mainly applied in offshore industries...

..., the relations between material toughness and strength and the wall thickness and environmental temperature of steel structures are demonstrated. Further on, recommendations for structural engineers concerning the adequate choice of steel grade are given. Here, the use of high-strength steel and the consequences...

... ABSTRACT: In order to investigate the effect of post weld treatment on the fatigue life of welded details of ultra high strength steels, experimental investigations are necessary. Within a test series on butt welded specimens, the influence of the high frequency hammer peening method HiFIT...

... weight can be met by the use of high strength steels. Thereby, material cost and carbon footprint as well as weld volume can be reduced. Structures, for which high strength steel is preferentially used, are usually exposed to very high alternating loads. From a certain number of load cycles...

... on corrosion problems. KEY WORDS: offshore, wind energy, high strength steels, corrosion protection, Ultrasonic Impact Treatment, fatigue. INTRODUCTION The advancement of regenerative energies causes a boom in the wind energy industry. In order to fulfill the increasing demands for alternative energy...

... Investigation of the Fatigue Behavior of Butt Welded Plates made of High-Strength Steels Jennifer Hrabowski, Stefan Herion Research Centre for Steel, Timber and Masonry, University of Karlsruhe Karlsruhe, Germany ABSTRACT Butt welded plates with different wall thicknesses are often needed...

...Use of High Strength Steel Wires for Flexible Pipe in Low Sour Service Conditions: Impact on Deep Water Applications Nicolas Désamais, Antoine Félix-Henry, Carol Taravel-Condat, Alain Drouës Technip Le Trait, France ABSTRACT Due to the recent development of deep water fields, the mechanical loads...

... in the reduction factor. When using high strength steel, smaller wall thicknesses usually suffice. Due to the fact that weld volume and weight can be reduced, especially structures with many welds become more economical. INTRODUCTION In the context of the exploitation of alternative energies, many offshore...

... of plates and tubes made of high strength steels, six different kinds of longitudinal attachments have been investigated. Steel grades of S460, S690, S960 and S1100 are used. The increase of the fatigue strength by means of post weld treatment is taken into account as well. A finite element analysis is also...

... ABSTRACT Despite in the offshore area the use of high strength steels is increasing, in fatigue design codes for welded joints no distinction between low, medium and high strength steels is made; besides limited results are available about fatigue behavior of high strength steels welded joints...

... ABSTRACT The recent development of X120 (Grade 825) high strength steel linepipe enables gas producers to realize significant savings in the total cost of long-distance gas transmission pipelines, lowering the cost of supplying gas to market. These savings can be achieved from cost reductions...

... ABSTRACT Jack-up platforms are made from high strength steels and the offshore oil and gas industry is now proposing to use these platforms for production and exploration. The possibility of deterioration from long term problems such as fatigue has been heightened due to this change in use...

... susceptibility to fatigue crack initiation and propagation. Furthermore, there is less data available on high strength steels used in the fabrication of jackups when compared with conventional offshore structural steels such as BS 4360 and BS 7191 and there is no existing fatigue guidance: current fatigue...

... & mining reservoir characterization heat treatment composition machine learning regression equation mecbanical property plastic property investigation surface heating high strength steel hsla steel wellbore integrity Proceedings of the Sixth (1996) ·lnterlUllional Offshore and Polar...

... ABSTRACT Modem high strength steels combine high strength with good ductility properties and good weidabillty. Reduced material and welding costs have made It economical to apply high strength steel grades X70 (API) and StE 480.7 TM (DIN), instead of lower grades lIke X60. In some countries...

... ABSTRACT The paper describes the results of one year field tests performed in deep water in the North Sea in order to evaluate the stress corrosion cracking behaviour of high strength steels under cathodic protection. The tests were performed on precracked specimens obtained from base...