Energy Citations Database

Bibliographic Citation

 
Document
For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field.
For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability.
Title Failure analysis of an ammonia refrigerant condenser tube
Creator/Author Muralidharan, N.G. ; Kaul, R. ; Kasiviswanathan, K.V. ; Jayakumar, T. ; Raj, B. [Indira Gandhi Centre for Atomic Research, Kalpakkam (India)]
Publication Date1996 Apr 01
OSTI IdentifierOSTI ID: 230705
Other Number(s)JMEPEG; ISSN 1059-9495
Resource TypeJournal Article
Resource RelationJournal of Materials Engineering and Performance ; VOL. 5 ; ISSUE: 2 ; PBD: Apr 1996
Subject36 MATERIALS SCIENCE ; IRON BASE ALLOYS; WELDED JOINTS; FRACTURE PROPERTIES; MANGANESE ADDITIONS; CARBON ADDITIONS; DEFECTS; HYDROGEN; CRACKS; CRACK PROPAGATION; X-RAY RADIOGRAPHY; FRACTOGRAPHY; NUCLEATION; TEMPERATURE DEPENDENCE
Description/Abstract A detailed failure analysis was conducted on an ammonia refrigerant condenser tube component that failed catastrophically during its initial hours of operation. Evidence collected clearly demonstrated that the weld between a pipe and a dished end contained a sharp unfused region at its root (lack of penetration). Component failure had started from this weld defect. The hydrogen absorbed during welding facilitated crack initiation from this weld defect during storage of the component after welding. Poor weld toughness at the low operating temperature facilitated crack growth during startup, culminating catastrophic failure as soon as the crack exceeded critical length.
Country of PublicationUnited States
LanguageEnglish
Formatpp. 241-246 ; PL:
System Entry Date2001 May 04

Top