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1	In situ microviscoelastic measurements by polarization interferometry Williams, Valorie Sharron, 1960- January 1988 (has links) A new type of computer-controlled instrument has been developed to measure microviscoelastic properties of thin materials. It can independently control and measure indentation loads and depths in situ revealing information about material creep and relaxation. Sample and indenter positions are measured with a specially designed polarization interferometer. Indenter loadings can be varied between 0.5 and 10 grams and held constant to ±41 mg. The resulting indentation depths can be measured in situ to ±1.2 nm. The load required to maintain constant indentation depths from 0.1 to 5.0 microns can be measured in situ to ±3.3 mg and the depth held constant to ±15 nm. Polarization interferometers. Materials -- Creep -- Testing. Plasticity -- Testing. Stress relaxation -- Testing.
2	Welding Metallurgy of Nickel-Based Superalloys for Power Plant Construction Tung, David C. January 2015 (has links) No description available. Materials Science Metallurgy Welding Metallurgy Stress Relaxation Cracking Stress Relief Cracking 740 282 617 AUSC Advanced Ultra Supercritical PWHT Stress Relaxation Testing Stress Relief Testing Compact Tension Samples Residual Stress Pre-Compression Superalloy