Jayakumar, T. ; Raj, B. ; Bhattacharya, D. K. ; Rodriguez, P. ; Probhakar, O. (1993) Influence of MC-type carbides on acoustic emission generated during tensile deformation in a Nimonic alloy PE16 Journal of Acoustic Emission, 11 (1). pp. 43-51. ISSN 0730-0050
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Abstract
The influence of MC-type carbides on acoustic emission (AE) generated during room temperature (~298K) tensile deformation and fracture in a Nimonic alloy PE16 is discussed. Decohesion of MC during the deformation resulted in burst-type and more energetic emissions as against the continuous and weaker emissions from solution annealed specimens. Besides, the AE events due to MC had longer duration and shorter rise time. Dislocation activity at the matrix/MC interface and decohesion of the carbide are the sources of burst emissions generated. Comparison of AE behavior due to decohesion of two different carbides, i.e., MC and MC indicates that the interfacial energy between the matrix and the carbide influences the characteristics of AE.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Acoustic Emission Group. |
| ID Code: | 91262 |
| Deposited On: | 17 May 2012 10:21 |
| Last Modified: | 17 May 2012 10:21 |
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