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Materials and Manufacturing Processes Volume 27, 2012 - Issue 1
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Original Articles

Effects of Processing Parameters on the Density and Mechanical Properties of Compacts Prepared by Magnetic Pulse Compaction of Hydrogenated Ti6Al4V Powder

Min Li School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China; Pinggao Group Co. Ltd., Pingdigshan, ChinaCorrespondence[email protected]
,
Haiping Yu School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
,
Chunfeng Li School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
,
Shanshan Zhang School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
&
Wei Bian School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
Pages 26-32 | Received 26 Apr 2010, Accepted 31 Dec 2010, Published online: 22 Dec 2011
 
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Abstract

Static and dynamic compaction of hydrogenated Ti6Al4V powder were investigated experimentally using a hydraulic universal testing machine and with a magnetic pulse compaction (MPC) machine. Effects of discharge voltage, compaction times, compaction temperature, hydrogen content, and compaction method on relative density and mechanical properties of compacts were analyzed. Increasing discharge voltage is an effective method for growth of relative density. Relative density and hardness reach their maximum values of 93.50% and 59.8 HRA under twice compaction, respectively. A proper content of hydrogen improves compressibility and compactability of compacts prepared by MPC. Compaction temperature has a favorable effect on relative density and hardness. The maximum relative density is 95.53% in a hydrogen content of 0.09% at a compaction temperature of 400°C. Compressibility and compactability of compacts prepared by MPC are apparently higher than those of compacts prepared by static compaction.

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