Review of weld repair procedures for low alloy steels designed to minimise the risk of future cracking

被引:52
作者
Lant, T [1 ]
Robinson, DL [1 ]
Spafford, B [1 ]
Storesund, J [1 ]
机构
[1] ERA Technol Ltd, Surrey KT22 7SA, England
关键词
weld repair; temper bead; half bead; ferritic; power; petrochemical; refinery;
D O I
10.1016/S0308-0161(01)00094-1
中图分类号
T [工业技术];
学科分类号
08 [工学];
摘要
Weld repairs to aged and degenerated materials are prone to early failure on return to service unless strict preparation and controlled welding procedures are followed. This paper reviews and appraises the practical weld repair procedures, which have been developed or are currently being considered, for low alloy ferritic steels used within the Power, Petrochemical and Refinery Industries. The half-bead and temper-bead approaches both manual and automatic are considered in detail. The alternative use of high nickel weld fills for repair welding of low alloy ferritic base materials are also considered. Some conclusions about the expected life of repair welds are drawn from recently sponsored projects. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:813 / 818
页数:6
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