Residual Stress State of X65 Pipeline Girth Welds Before and After Local and Furnace Post Weld Heat Treatment
نویسندگان
چکیده
منابع مشابه
Experimental Study of the Residual Stresses in Girth Weld of Natural Gas Transmission Pipeline
In order to achieve integrated condition in the girth welding of high pressure natural gas transmission pipelines, the weld zones and its surrounding area should have good mechanical properties. Residual stresses are an important defect especially in the girth welding of the pipeline. In this study, two API X70 steel pipes (with spiral seam weld) of 56 inches outside diameter and 0.780 inch wal...
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Automated ultrasonics is steadily becoming the standard method of inspection of pipeline girth welds throughout the world. In addition, old technology multiprobe systems are rapidly being replaced by newer phased arrays. Olympus NDT developed the first phased array system a decade ago, which proved to be much more flexible and capable than multiprobe systems, particularly for offshore special a...
متن کاملExperimental determination of normalizing effect on mechanical and metallurgical properties of HSLA API X65 multi-pass girth weld
High strength low alloy steels are widely used in gas industry, so shield metal arc welding in pipelines to transport natural gas from Iran is of great importance. For experimental investigation of seam weld and integrity of girth weld, destructive and non-destructive tests are required. In this article the effects of normal heat treatment on properties of multi pass welding in different situat...
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ژورنال
عنوان ژورنال: Journal of Pressure Vessel Technology
سال: 2017
ISSN: 0094-9930,1528-8978
DOI: 10.1115/1.4035884