The stress and temperature dependence of creep in an Al-2.0wt%Li alloy
Goodson, Earl F., Sr.
McNelley, Terry R.
Fox, Alan G.
MetadataShow full item record
The effect of stress and temperature on the creep behavior of an Al-2.0wt%.Li alloy was investigated in the temperature range from 300 to 5000C. This temperature interval corresponds to a solid solution of Li in Al. Experimental results indicate that Al-2.0wt%Li behaves as a pure metal class alloy (class II). This is demonstrated by several creep characteristics including the value of the stress exponent (n - 5), the shape of the creep curve, and the nature of the creep transient after a temperature change. However, anomalous behavior of the activation energy was observed. Activation energies up to 55 kcal/mole, decreasing to approximately 33 kcal/mole at higher temperatures, were observed by the temperature cycling technique.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Wang, Q.; Kalogiros, J.A.; Ramp, S.R.; Paduan, J.D.; Buzorius, G.; Jonsson, H. (2011-05);Aircraft measurements obtained during the 2003–04 Autonomous Ocean Sampling Network (AOSN-II) project were used to study the effect of small-scale variations of near-surface wind stress on coastal upwelling in the area ...
Scott, Brian E-S. (Monterey, California. Naval Postgraduate School, 2013-03);This work examines the effect of stress on the rate of sensitization, the rate of pitting corrosion and the rate of crack nucleation of aluminum alloy 5083-H116 aluminum. Stress corrosion cracking in aluminum superstructures ...
Johnson, John Michael (Monterey, California. Naval Postgraduate School, 1975-03);The flow stress of a common shape memory alloy, a particular alloy of nitinol is investigated and presented as a function of temperature and strain. The reversion stress, that stress necessary to maintain a constant strain ...