Mechanical and Metallurgical Characterization of HSLA X70 Welded Pipeline Steel Subjected to Successive Repairs
نویسندگان
چکیده
منابع مشابه
Crystallographic Texture of Induction-welded and Heat-treated Pipeline Steel
The Charpy energy of the sample after heat–treatment was significantly higher than the as–welded sample when the V–notches were located 1 or 3 mm away from FL. However, when the V–notch was located on FL, the improvement in toughness from the heat treatment was not so obvious with no enhancement noted for the test temperature of −40 ◦C. Under this condition, the facets of the fracture surface a...
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Inclusion-induced pitting initiation mechanisms in X70 steel were investigated by scanning electron microscopy, scanning Kelvin probe force microscopy (SKPFM), immersion and electrochemical polarization tests in chloride-containing ion solutions. There are three inclusion types in the X70 steel. Corrosion test results indicated that pitting corrosion resistance of type A inclusion < type C incl...
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Stress relieving is a common practice among manufacturing codes for reducing the magnitude of residual stresses in welded, quenched, and tempered steel structures and pressure vessels. The present work investigates the effect of stress relieving at 480, 560, 620, and 680°C on the microstructure and mechanical properties of 20 mm ASTM A517 Gr. B steel plate weldments produced by shielded metal a...
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متن کاملeffect of stress relieving on mechanical and metallurgical properties of shielded metal arc welded joints of a517 steel
stress relieving is a common practice among manufacturing codes for reducing the magnitude ofresidual stresses in welded, quenched, and tempered steel structures and pressure vessels. the presentwork investigates the effect of stress relieving at 480, 560, 620, and 680°c on the microstructure andmechanical properties of 20 mm astm a517 gr. b steel plate weldments produced by shielded metal arcw...
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ژورنال
عنوان ژورنال: Acta Metallurgica Sinica (English Letters)
سال: 2016
ISSN: 1006-7191,2194-1289
DOI: 10.1007/s40195-016-0422-1