Mechanical Properties of Hyperbaric Gas Metal Arc Welds in x65 Pipeline Steel

被引：0
|
作者：
Akselsen, Odd M. [1 ,2 ]
Fostervoll, Hans [2 ]
Ahlen, Carl Henrik [3 ]
机构：
[1] Norwegian Univ Sci & Technol NTNU, Trondheim, Norway
[2] SINTEF Mat & Chem, Trondheim, Norway
[3] StatoilHydro Res Ctr, Trondheim, Norway
来源：
INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING | 2010年 / 20卷 / 02期
关键词：
Hyperbaric GMA welding; different pressure; x65 pipeline steel; low-alloy steel wire; Inconel; 625; wire; mechanical properties; microstructures;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In the present investigation, hyperbaric welding has been simulated by laboratory welding in a pressure chamber as part of the development programme for fully remote controlled GMA welding. The welding trials of x 65 pipeline steel were carried out at pressures of 12, 25 and 35 bar, using one metal cored tubular low-alloy steel and one solid Inconel 625 wire. All welds were characterized by macrographs, hardness measurements, and tensile and impact testing, in addition to metallurgical inspection through light microscopy and microprobe analysis. It is demonstrated that both welding wires can be used to provide high-quality welds under the prevailing conditions, satisfying current requirements set to hyperbaric welding.
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页码：110 / 117
页数：8
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