Effect of heat treatment environment on Li depletion and on mechanical properties in Al-Li alloy sheets
作者： U. Ramamurty , Amit Bandyopadhyay , E. S. Dwarakadasa
DOI: 10.1007/BF01352194
关键词: Lithium 、 Ultimate tensile strength 、 Materials science 、 Tola 、 Indentation hardness 、 Layer (electronics) 、 Depletion region 、 Metallurgy 、 Argon 、 Alloy
摘要: The loss of lithium during solution heat treatment various commercial Al-Li alloy sheets as a function the environment is investigated. thickness soft layer formed due to solutionizing at 530‡C for 30 min in laboratory air, argon and salt bath environments determined by microhardness measurements. Li from surfaces interpreted with help normalized profiles. Results showed that prior Li-depleted does not hinder further has relatively little effect on Li. tensile strength depletion peak-aged condition found be more pronounced 1 mm thick sheet than 1.5 or 2 sheets. Possible reasons 8090 series alloys after are discussed. Explanations observed ductile fracture features layers offered.
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