Some tests of light aluminium casting alloys--The effect of heat treatment .. . PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1919 0 -r^V,^ OEG $ 1919 1^ ??^ SOME TESTS OF LIGHT ALUMINUM CASTING AL-LOYS—THE EFFECT OF HEAT TREATMENT By P. D. Merica and C. P. Kan CONTENTS Page I. Introduction 3 II. Preparation of the alloys 4 III. Methodsof test 4 IV. Influence of form of test specimen 5 V. Influence of melting and pouring temperatures 8 VI. Influence of chemical composition g VII. Effect of heat tr
Some tests of light aluminium casting alloys--The effect of heat treatment .. . PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1919 0 -r^V,^ OEG $ 1919 1^ ??^ SOME TESTS OF LIGHT ALUMINUM CASTING AL-LOYS—THE EFFECT OF HEAT TREATMENT By P. D. Merica and C. P. Kan CONTENTS Page I. Introduction 3 II. Preparation of the alloys 4 III. Methodsof test 4 IV. Influence of form of test specimen 5 V. Influence of melting and pouring temperatures 8 VI. Influence of chemical composition g VII. Effect of heat treatment 11 VIII. Relation between tensile properties and hardness 12 IX. Microstructure 13 X. Resistance to corrosion in the salt-spray test 14 XI. Resistance to the action of alternating stresses 15 XII. Summary and conclusions 18 I. INTRODUCTION Dtiring the past 18 months a number of experimental heats ofdifferent compositions of Hght alimiinimi casting alloys havebeen poured at the Bureau of Standards foundry, and mechanicaland corrosion tests made of the test-bar csometestsoflight00mari
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