... the sensitivity of i) stress corrosion cracking of austenitic stainless steels in a low- or high-concentration chloride solution and/or high-temperature water, ii) hydrogen embrittlement of high-strength steels in various aqueous solutions and gaseous environments, and iii) hydrogen attack of steels in high...

... up to 30 MPa, are fully bainitic for maximum strength and toughness, and are resistant to temper embrittlement, hydrogen embrittlement, and hydrogen attack. Microstructural studies have shown that alloys containing 3%Cr and 1.5%Mo exhibit improved heat treating characteristics as they rapidly temper...

..., loading limit identification including estimation of further aging and hydrogen effects, stress-intensity factor calculations, material and cracking mechanism investigation, and recommendations of precautions. The principal reason for crack formation was found to have been hydrogen attack due to local...

... An ultrasonic attenuation technique has been employed in practice to detect hydrogen attack nondestructively. However, it is difficult to evaluate hydrogen attack quantitatively by this technique, because ultrasonic attenuation is influenced by the test conditions and the material itself...

..., construction, and operation of these large, thick-walled pressure vessels. pressure vessels coal liquefaction coal conversion materials 2¼Cr-1Mo steel corrosion hydrogen attack weld overlay temper embrittlement T. E. Scott^ Pressure Vessels for Coal Liquefaction An Overview REFERENCE: Scott, T...

... alloys are now being compared with those of commercial SA 387 steel. A summary of results obtained to date is presented. 2¼Cr-1Mo steel thick section applications microstructure mechanical properties impact toughness temper embrittlement hydrogen attack weldability alloy design nickel...

... 2¼Cr-1Mo steel with thicknesses of 450 and 300 mm were also studied, and sufficient and homogeneous properties were confirmed. cracking creep ductility fracture toughness heat treatment heat affected zone (HAZ) homogeneity hydrogen attack hydrogen embrittlement isothermal treatment...

... A systematic study was made of the microscopic fracture processes associated with hydrogen attack of a medium carbon steel in a well-controlled, high-temperature, high-purity hydrogen environment. Exposure to a hydrogen pressure and temperature of 3.5 MN/m 2 and 575°C was found to progressively...