Resistivity Quantitative Measurement Model and Accuracy Analysis of Hydrogen Content in Pure Aluminum

Abstract

Hydrogen content in pure aluminum melting was increased through inserting fresh branches and measured by decompression solidification method and density method. Resistivity of pure aluminum casting was measured by means of the electrical resistance method, and physical model of resistivity measuring method was established. Combined with experimental data, the mathematical relationship between resistivity of pure aluminum casting and hydrogen content was derived. To further verify the feasibility of resistivity measurement model on the hydrogen content in aluminum melting, this paper also has carried on the hydrogen evolution experiment.