Influence of re-solutionising treatment on the cyclic deformation behaviour of a service-exposed Inconel® 625 superalloy

被引：11
|
作者：
Nagesha, A. [1 ]
Parameswaran, P. [1 ]
Kumar, Niraj [2 ]
Sandhya, R. [1 ]
Mathew, M. D. [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India
[2] Heavy Water Board, Bombay, Maharashtra, India
来源：
MATERIALS AT HIGH TEMPERATURES | 2012年 / 29卷 / 01期
关键词：
Inconel; 625; service exposed; re-solutionising; low cycle fatigue; ALLOY-625;
D O I：
10.3184/096034012X13269868036418
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cast Inconel (R)(1) 625 ammonia cracker tubes were received as virgin and service-exposed (117,000 h at temperatures in the range, 873-953 K and a pressure of approximately 14 MPa) conditions. Low cycle fatigue behaviour of the virgin and service-exposed alloys was investigated under stress controlled cycling. The service-exposed material was subjected to a re-solutionising treatment at 1433 K for 2 h prior to testing. Tests were conducted using an R-ratio of 0 at various stress ranges. It was observed that the re-solutionised material displayed a better LCF resistance compared to the virgin material.
引用
收藏
页码：49 / 53
页数：5
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