Sandhya, R. ; Bhanu Sankara Rao, K. ; Mannan, S. L. (2005) Creep-fatigue interaction behaviour of a 15Cr-15Ni, Ti modified austenitic stainless steel as a function of Ti/C ratio and microstructure Materials Science and Engineering: A, 392 (1-2). pp. 326-334. ISSN 0921-5093
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S09215...
Related URL: http://dx.doi.org/10.1016/j.msea.2004.09.040
Abstract
The creep-fatigue interaction behaviour of a 15Cr-15Ni, Ti modified austenitic stainless steel has been characterized as a function of Ti/C ratio and microstructure. Creep-fatigue interaction behaviour has been investigated in this material, by introducing hold times with durations ranging from 1 to 10 min at peak tensile strain. The material was tested at 923 K in Ti/C ratios of 4 and 8 and in the solution annealed, cold worked and aged conditions. It has been ascertained that precipitation controls creep-fatigue interaction properties in this alloy. Carbides which precipitate on the grain boundaries in the solution annealed material are found to be beneficial to creep-fatigue interaction properties, while fine titanium carbides which precipitate in the matrix in cold worked and aged conditions of the alloy, have been found detrimental to creep-fatigue interaction properties.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Ti Modified Stainless Steel; Creep-fatigue Interaction; Low Cycle Fatigue; Microstructure; Precipitation; Cold Work |
| ID Code: | 18323 |
| Deposited On: | 17 Nov 2010 12:47 |
| Last Modified: | 18 May 2011 05:56 |
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