Journal Published Online: 01 September 1988
Volume 16, Issue 5

Evaluation of Creep Rupture Behavior of 1Cr-1Mo-0.25V Steel with 0.04 wt% Sn

CODEN: JTEVAB

Abstract

Results of creep rupture testing of a commercial quality 1Cr-1Mo-0.25V steel forging with 0.04 wt% Sn at 500, 550, and 600°C over a range of stresses for periods varying from about 4600 to 27 000 h have been reported. Rupture lives were found to be higher and rupture ductilities to be lower than data available in the literature for a similar steel. Auger electron spectroscopic analysis of specimens creep tested at 500 and 550°C for 25 692 h and 27 203 h, respectively, revealed no perceptible segregation of Sn to grain boundaries. Thus Sn (0.04 wt%) does not appear to be responsible for the lower rupture ductilities observed in this investigation. Selected area electron diffraction of carbides extracted by carbon extraction replicas from interrupted creep specimens, currently in progress, may possibly explain the observed anomalies in the creep behavior.

Author Information

Bashu, SA
Metallurgy Group, Corporate Research and Development, Bharat Heavy Electricals Limited, Hyderabad, India
Singh, K
Metallurgy Group, Corporate Research and Development, Bharat Heavy Electricals Limited, Hyderabad, India
Chowdary, KM
Metallurgy Group, Corporate Research and Development, Bharat Heavy Electricals Limited, Hyderabad, India
Pages: 6
Price: $25.00
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Details
Stock #: JTE11619J
ISSN: 0090-3973
DOI: 10.1520/JTE11619J