Hydrogen Induced Cracking (HIC)
Mechanisms of hydrogen-induced cracking in ultrahigh-strength steels
... effective hydrogen permeation and hydrogen induced cracking behaviour of ultrahigh-strength steels (nanostructured bainitic steels and TWIP steel were compared to mild steel using ...
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ROLE OF THE MICROSTRUCTURE IN HYDROGEN INDUCED CRACKING OF CARBON - MANGANESE STEELS
... after hydrogen charging (through-thickness direction) CONCLUSIONS The study of resistance of carbon-manganese steels to hydrogen induced cracking showed its close relation to microstructure ...
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Hydrogen Induced Cracking of Low Strength Steels in Geothermal Fluids
... corrosion cracking, hydrogen embrittlement, fitness-for-purpose ABSTRACT Typically, low strength steels and annealed stainless steels are specified for geothermal energy applications because of the risk of ...
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Crystallographic Texture Helps Reduce Hydrogen Induced Cracking in Pipeline Steels
... 5. CONCLUSIONS It has been shown that it is feasible to improve the HIC resistance of pipeline steels using crystallography texture control and grain-boundary engineering. At a macroscopic scale, this can be achieved ...
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Detection, characterization and sizing of hydrogen induced cracking in pressure vessels using phased array ultrasonic data processing
... This paper presents the design and development of an optimized Phased Array ultrasonic inspection technique for the detection and sizing of hydrogen induced cracking (HIC) type flaws used as ...
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Influence of S Contents on the Hydrogen Blistering and Hydrogen Induced Cracking of A350LF2 Steel
... the hydrogen blistering and hydrogen induced cracking of A350LF2 steel with different S contents were ...The hydrogen blistering, crack length rate(CLR), crack thickness rate(CTR) and ...
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Mechanism of failure by hydrogen-induced cracking in pipeline steels
... HIC cracking, such as adding micro-alloying elements to create free detrimental trapping sites, adding calcium to change the morphology of manganese sulfide, decreasing sulfur content, eliminating the segregation ...
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High-flux Hydrogen Irradiation-induced Cracking of Tungsten Reproduced by Low-flux Plasma Exposure
... Abstract: Hydrogen-induced cracking (HiC) or blistering is a commonly observed feature in plasma- loaded material ...inter-granular cracking at the surfaces were reproduced in our low-flux ...
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Effect of microstructure and alloying elements on the resistance of fastener grade steels to hydrogen assisted cracking
... to hydrogen induced ...The hydrogen assisted cracking susceptibility of these grades is depicted in Figures 4-11 and ...to hydrogen attack for the bainitic steel structures of ...
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Study of hydrogen assisted cracking in ship building grade steel
... of hydrogen on the mechanical properties of metal was first reported by Pefilin in 1926 who found the presence of hydrogen in steel caused a significant loss of ductility at room temperature under normal ...
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The Susceptibility to Hydrogen Induced Stress Cracking for Alloy 718 and Alloy 725
... the hydrogen concentration in the samples even ...located. Hydrogen bubbles from the working electrode reaction could enter the reference electrode tube and break the ...
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Hydrogen induced stress cracking of alloy 718: Effects of chemical composition and microstructure
... 6.7 Notched samples - Tensile results The stress - time plots from the notched samples are shown in figure 38 and 39. The purpose of these tests was to obtain time-lapse videos of the initiation and propagation of the ...
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A phase field formulation for hydrogen assisted cracking
... the cracking threshold without the need for time consuming laboratory ...internal hydrogen stress intensity thresholds as a function of hydrogen ...undergoing hydrogen assisted ...
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THE INFLUENCE OF MICROSTRUCTURE OF 30MnB4 STEEL ON HYDROGEN-ASSISTED CRACKING
... to hydrogen-assisted cracking (fracture be- havior) of zinc-coated screws made of 30MnB4 ...affecting hydrogen solubility during the further galvanic process and resulting in different fracture ...
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Environmental cracking of welded maraging steel in hydrogen sulphide
... that hydrogen diffusion should be greatest in regions of ...anticipate cracking to be faster at specimen centres than at their surfaces, so preserving a contour similar to the prior fatigue ...region ...
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Potential Cracking in Hydrogen Plant with Light Feedstocks (Part II)
... thermal cracking and chemical reactions in both MFPH coil and crossover volume for Case 1 and Temperature Index (TI) is ...thermal cracking for Case 2 feed because of non-methane hydrocarbons in the ...
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A three-dimensional multiscale model of intergranular hydrogen-assisted cracking
... intergranular hydrogen- embrittlement (HE) that accounts for: (i) the degradation of grain- boundary strength that arises from hydrogen coverage; (ii) grain-boundary diffusion of hydrogen; and (iii) ...
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The impact of hydrogen on the cracking resistance in weld joints of shipbuilding steels
... of hydrogen impact on the nucleation and growth of cold cracks in weld joints of shipbuilding ...the hydrogen content in the weld seam increases, the crack propagation work ...diffusion hydrogen ...
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Cracking in cement paste induced by autogenous shrinkage
... Abstract Detection and quantification of micro- cracks caused by restrained autogenous shrinkage in high-performance concrete is a difficult task. Avail- able techniques either lack the required resolution or may produce ...
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Corrosion-induced cracking of model train zincaluminium
... corrosion-induced cracking and its progression is still very much a concern to ...corrosion-induced cracking is present it is generally considered ...
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