Kelimu Tulugan, CheolHong Park, Wang Qing and Wonjo Park*
The Journal of Mechanical Science and Technology, vol. 26, no. 2, pp.373-377, 2012

Abstract : (Ti-Zr)-Mo-Nb alloys were studied to find some stabilized BCC solid solution with low Young’s Modulus. We propose a cluster-plusglue- atom model to solve the composition design of multi-component complex alloys from the structure viewpoint. The alloy composition is expressed with [cluster](glue atom)x according to the model, x denoting the number of glue atoms matching one cluster. Alloy structures were identified with XRD and optical microscopy (OM), and mechanical tests were finally carried on to the BCC alloys. The experimental results indicated that a series of β-Ti solid solution alloys with low Young’s modulus and good synthesized mechanical properties can be obtained with the cluster model, where the [CN14 cluster](glue)1 alloys given by of 1:1 cluster model have the optimum properties.

Keyword : Cluster-plus-glue-atom model; Composition design; Low Young’s modulus; (Ti-Zr)-Mo-Nb alloys