Please use this identifier to cite or link to this item:
|Title:||Enhancement in creep resistance of Ti-6Al-4V alloy due to boron addition|
Satyanarayana, D. V. V.
|Keywords:||Nanoscience & Nanotechnology|
Metallurgy & Metallurgical Engineering
Titanium Matrix Composites
Hardened Austenitic Steel
|Publisher:||Elsevier Science Sa|
|Citation:||Singh, G; Satyanarayana, DVV; Pederson, R; Datta, R; Ramamurty, U, Enhancement in creep resistance of Ti-6Al-4V alloy due to boron addition. Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing 2014, 597, 194-203, http://dx.doi.org/10.1016/j.msea.2013.12.078|
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
|Abstract:||The addition of B, up to about 0.1 wt%, to Ti-6Al-4V (Ti64) reduces its as-cast grain and colony sizes by an order of magnitude. In this paper, the creep resistance of this alloy modified with 0.06 and 0.11 wt% B additions was investigated in the temperature range of 475-550 degrees C and compared with that of the base alloy. Conventional dead-weight creep tests as well as stress relaxation tests were employed for this purpose. Experimental results show that the B addition enhances both elevated temperature strength and creep properties of Ti64, especially at the lower end of the temperatures investigated. The steady state creep rate in the alloy with 0.11 wt% B was found to be an order of magnitude lower than that in the base alloy, and both the strain at failure as well as the time for rupture increases with the B content. These marked improvements in the creep resistance due to B addition to Ti64 were attributed primarily to the increased number of inter-phase interfaces - a direct consequence of the microstructural refinement that occurs with the B addition - that provide resistance to dislocation motion. (C) 2014 Elsevier B.V. All rights reserved.|
|Appears in Collections:||Research Articles (Ranjan Datta)|
Files in This Item:
|5.04 MB||Adobe PDF||View/Open Request a copy|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.