Cold compaction study of Armstrong Process Ti-6Al-4V powders

Journal Article · Fri Dec 31 23:00:00 EST 2010 · Powder Technology

DOI:https://doi.org/10.1016/j.powtec.2011.08.007· OSTI ID:1023832

Chen, Wei ^[1]; Yamamoto, Yukinori ^[1]; Peter, William H ^[1]; Gorti, Sarma B ^[1]; Sabau, Adrian S ^[1]; Clark, Michael B ^[1]; Nunn, Stephen D ^[1]; Kiggans, Jim ^[1]; Blue, Craig A ^[1]; Fuller, Brian ^[2]; Akhtar, Kamal ^[2]

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1. ORNL
2. International Titanium Powder

This work investigates the cold compaction behavior of Ti-6Al-4V powders produced by Armstrong Process . As-received as well as milled powders were characterized and these powders were uniaxially die-pressed at designated pressures up to 690 MPa to form disk samples with different aspect ratios. Samples with high aspect ratio exhibited non-uniform density along the pressing axis and the density distribution is in consistent with the result predicted by finite element analysis. The linear regression analysis on the experimental density data can be used to predict density of compacts with different aspect ratios. In the studied pressure range, an empirical powder compaction equation represents the green density pressure relationship very well for both the as-received and 1-hr milled Armstrong Ti-6Al-4V powders.

• Research Organization: Oak Ridge National Laboratory (ORNL); Shared Research Equipment Collaborative Research Center
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1023832
• Journal Information: Powder Technology, Journal Name: Powder Technology Journal Issue: 2 Vol. 214; ISSN 0032-5910
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
ASPECT RATIO
DISTRIBUTION
PRESSING
PRESSURE RANGE
REGRESSION ANALYSIS