This paper presents a review of creep deformation and rupture mechanisms of low Cr-Mo alloy for the development of its creep damage constitutive equations under lower stress level. The existing phenomenological type of creep damage constitutive equations, proposed and developed by Hayhurst, do suffer the deficiency of inaccuracy in predicting the creep strain under multi-axial situation. Furthermore, it was not developed specifically for low stress. The paper reports a critical review on the cavity nucleation and the cavity growth, the deformation mechanisms and the creep damage evolution characteristics of the low Cr-Mo alloy at the temperature ranging from 723K to 923K (450 ~650 ), particularly under low stress level ( ), to form the physical base for the development of creep damage constitutive equation. It covers the influence of the stress level, states of stress, and the failure criterion.
|Title of host publication||Scientific Computing|
|Editors||Hamid R. Arabnia, George A. Gravvanis, George Jandieri, Ashu M. G. Solo, Fernando G. Tinetti|
|Number of pages||7|
|ISBN (Print)||1601322380, 9781601322388|
|Publication status||Published - 1 May 2015|
|Event||The 2013 International Conference on Scientific Computing - Las Vegas, United States|
Duration: 22 Jul 2013 → 25 Jul 2013
|Name||The 2013 WorldComp International Conference Proceedings|
|Conference||The 2013 International Conference on Scientific Computing|
|Period||22/07/13 → 25/07/13|
Xu, Q., Xu, Q., Lou, Z., Pang, Y. X., & Short, M. (2015). A Review of Creep Deformation and Rupture Mechanisms of Low Cr-Mo Alloy for the Development of Creep Damage Constitutive Equations Under Lower Stress. In H. R. Arabnia, G. A. Gravvanis, G. Jandieri, A. M. G. Solo, & F. G. Tinetti (Eds.), Scientific Computing (pp. 165-171). (The 2013 WorldComp International Conference Proceedings). CSREA Press.