Age-hardening characteristics of Cu–2.4Ni–0.6Si alloy produced by the spray forming process

Srivastava, V C and Scheider, A and Uhlenwinkel, V and Ojha, S N and Bauckhage, K (2004) Age-hardening characteristics of Cu–2.4Ni–0.6Si alloy produced by the spray forming process. Journal of Materials Processing Technology, 147 . pp. 174-180.

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The microstructural features and heat treatment response of a spray formed Cu–2.4Ni–0.6Si (wt.%) alloy have been investigated. The alloy was aged at 450 ◦C either in the as spray formed condition or after a cold deformation of 40% reduction in original thickness. Some of the samples were subjected to a solution treatment at 900 ◦C for 1 h prior to their cold deformation to 40% of original thickness and subsequent ageing. The variation in hardness and electrical conductivity of the alloys wasmeasured as a function of ageing time. The results indicated the highest peak hardness value of approximately 250 kgfmm−2 for the alloy aged after the solution treatment and cold rolling, compared to the maximum hardness of 220 kgfmm−2 for samples aged directly in as spray formed condition. However, the electrical conductivity was observed to be a maximum of 62% IACS in samples which had only been cold rolled. This behaviour is discussed in the light of microstructural characteristics associated with different processing conditions of this alloy.

Item Type:Article
Official URL/DOI:http://10.1016/j.jmatprotec.2003.12.013
Uncontrolled Keywords:Microstructural features; Electrical conductivity; Precipitation; Cu–Ni–Si Alloy; Spray forming
Divisions:Metal Extraction and Forming
ID Code:1492
Deposited By:Dr. V.C. Srivastava
Deposited On:26 Aug 2010 14:24
Last Modified:26 Aug 2010 14:24
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