Results 81 to 90 of about 2,006 (215)

Fatigue and bending behaviour of friction stir welded DH36 steel [PDF]

open access: yes, 2015
Friction stir welding presents many advantages over conventional welding techniques; however, there is limited published data with regards to the fatigue and bending performance of friction stir welded steels.
Fowler, Steven   +2 more
core   +1 more source

Корозійно-воднева деградація промислових нафтопроводів [PDF]

open access: yes, 2011
Подано аналіз руйнування промислових нафтопроводів при корозійній і корозійно-механічній дії. Особлива увага приділена деградації внутрішніх поверхонь труб в умовах вуглекислотної, сірчановодневої і мікробіологічної корозії, а також сірчановодневого ...
Звірко, О. І.   +2 more
core  

Effects of Ultra-Fast Cooling Process on Mechanical Properties of 14.8 mm Hot-Rolled Strip Coil of X100 Pipeline Steel

open access: yesTeshugang, 2015
The structure and mechanical properties of 14.8 mm hot-rolled strip coil of X100 pipeline steel (/% : 0.05C, 0.25Si, 1.97Mn, 0.008P, 0.002S, 0.26Cu, 0.36Cr, 0.38Ni, 0.22Mo, 0.03V, 0.02Ti, 0.09Nb, 0.029Als) with finishing rolling at 790-850 °C , after ...
周峰, 吴开明, 陈建新
doaj  

Nutrients recovery from treated secondary mainstream in an urban wastewater treatment plant: a financial assessment case study [PDF]

open access: yes, 2019
This study presents the financial assessment for implementing an ammonium and phosphate simultaneous recovery process based on the use of calcium activated synthetic zeolites in a large urban Waste Water Treatment Plant (WWTP) located in the Metropolitan
Cortina Pallás, José Luís   +2 more
core   +2 more sources

Continuum models of ductile fracture : A review

open access: yes, 2010
International audienceThe past 20 years have seen substantial work on the modeling of ductile damage and fracture. Several factors explain this interest. (i) There is a growing demand to provide tools which allow to increase the efficiency of structures (
Besson, Jacques
core   +3 more sources

Evolution of Microstructure of High-Grade Pipeline Steel

open access: yesTeshugang, 2008
With  increasing  the  strength  and  toughness  of pipeline  steel,the  corresponding  evolution  of structure  is pearlite-ferrite(X65    grade),acicular    ferite(X80    grade),particle    bainite-ferrite(X100    grade)and    lower    bainite(X120 ...
doaj  

Rupture ductile d'un acier haute résistance X100 pour transport de gaz naturel : caractérisation et simulation

open access: yes, 2006
International audienceCette étude concerne la dechirure ductile d'un acier a haute limite d'élasticite utilise pour la construction des gazoducs. Le comportement anisotrope du matériau est caractérisé par des essais sur eprouvettes de traction lisse ...
Besson, Jacques   +4 more
core   +1 more source

A Study on Phase Transformation of X100 Pipeline Steel during Continuous Cooling

open access: yesTeshugang, 2010
The effect of cooling rate (0. 5 ~35℃/s) and strain (0. 3 ~ 0. 6) on structure of X100 pipeline steel (%: 0.06C, 0. 23Si, 1.90Mn, 0. 005P, 0.0003S, 0. 28 Mo, 0. 25 Ni, 0. 23 Cr, 0. 05 Nb, 0.02Ti, 0. 20Cu, 0.
周平   +5 more
doaj  

Enhancing strength and plasticity in the nugget zone of friction stir welded X100 pipeline steel via back-heating

open access: yesJournal of Materials Research and Technology
Here, X100 pipeline steel was subjected to FSW by controlling the peak temperature in the ferrite phase region, and preheating was used to tailor microstructure characteristics and enhance the strength-plasticity combination of the NZ.
R.H. Duan   +5 more
doaj   +1 more source

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