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The Effect Of Surface-Active Agents On The Mechanical Properties of Metals Part II. The Effect of Surface-Active Agents on the Mechanical Behavior of Aluminum Single Crystals

Report Number: WADD TR 61-58 Part II
Author: Kramer, I. R.
Corporate Author: The Martin Company
Laboratory: Materials Central
Date of Publication: 1961-04
Pages: 24
Contract: AF 33(616)-6220
Project: 7023
Task: 73667
PB Number: PB181113
AD Number: AD0282017

Single crystals of aluminum were pulled in tension in a solution of paraffin oil and stearic acid. The critical resolved shear stress did not change with the concentration of the stearic acid solution; however, the extent and slopes of Stages I and II were affected greatly. The observations lend evidence that the weakening effect of surface-active agents is controlled by the rate of desorption of the metal soap formed by the reaction of the surface-active agent and the metal surface.

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