Research on the Properties of the Thermal Storage and Corrosion of Al-Si-Cu-Mg-Zn Alloy

Xiao Min Cheng; Xin Chen; Yuan Yuan Li; Yong Gang Tan

doi:10.4028/www.scientific.net/AMR.197-198.1064

Paper Titles

Synthesis, Physicochemical Properties and Catalytic Performance of a Modified ZSM-5 Molecular Sieve
p.1042

Synthesis of LiFePO₄ Cathode Materials by a Chemical Method
p.1049

Supercapacitor Electrode Materials Based on Activated Carbon /Polyaniline Doped with Nickel Salt
p.1053

Studies on the Catalyzing Transesterification of Soybean Oil with Methanol for Biodiesel Using a Novel Porous CaO Microsphere Catalyst
p.1057

Research on the Properties of the Thermal Storage and Corrosion of Al-Si-Cu-Mg-Zn Alloy
p.1064

Facile Synthesis and High Activity of Novel Ag/TiO₂-NTs Composites for Hydrazine Oxidation
p.1073

Study on Modification Mechanism of Antimony in Al－Si Cast Alloys
p.1079

Study on the Micro-Structure of High Temperature Oxide Scales Applied Loads on Cr5Mo Alloy
p.1086

Synthesis and Electrochemistry Characteristics of Layered Li[Li_(1/3-x)Mn_(2/3-x)Ni_xCo_x]O₂ (x = 0.1, 0.15, 0.2, 0.22, 0.25) Cathode Materials for Lithium Secondary Batteries
p.1092

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 197-198Research on the Properties of the Thermal Storage...

Research on the Properties of the Thermal Storage and Corrosion of Al-Si-Cu-Mg-Zn Alloy

Abstract:

In this paper, various kinds of high-temperature phase change thermal storage Al-Si-Cu-Mg-Zn alloys were prepared, and the thermal properties were studied through integrated thermal analysis. Then the corrosion kinetics of Cr20Ni80 alloy in Al-7% Si alloy and Al-Cu-Mg-Zn alloy at 700°C in thermal cycles were obtained. The microstructures, element concentration and phases in the interface were analyzed by means of metallographic microscope, EPMA and XRD. The results show that all materials phase transition temperatures are during 450°C ~650°C . The total thermal energies of the materials are higher than 900J/cm³. Quaternary alloys and quinary alloys show much more advantages when applying for solar thermal power generation systems. The latent heat depends strongly upon the composition and percentage of elements and the phase composition. Besides, experimental results show that the corrosion rate of Cr20Ni80 alloy in Al-7%Si alloy at 700°C is 0.167mm/h. Under thermal cycling conditions, the corrosion rate of Cr20Ni80 alloy in Al-Cu-Mg-Zn alloy is a little lower and the reaction interface layer does not significantly affect the rate of further corrosion. The corrosion of Al-Si-Cu-Mg-Zn phase change thermal storage materials depends on the content of aluminum element, and nickel-based alloys are not suitable for use as packaging materials.