The effect of different heat treatment cycle on hot corrosion and oxidation behavior of Ti-6Al-4V

被引：7

作者：

Sharifi, F. ^{[1
]}

Abouei, V. ^{[1
]}

Alizadeh, A. ^{[2
]}

Shajari, Y. ^{[3
]}

Porhonar, M. ^{[1
]}

Ghanbari, M. ^{[1
]}

Ravari, B. Karbakhsh ^{[1
]}

机构：

[1] Islamic Azad Univ, Karaj Branch, Dept Met & Mat Engn, Karaj, Iran

[2] Univ Zakho, Coll Engn, Dept Mech Engn, Zakho, Iraq

[3] Mat & Energy Res Ctr, Karaj 141554777, Iran

来源：

MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 11期

关键词：

Ti-6Al-4V; heat treatment; hot corrosion; thermal oxidation; microstructure; MECHANICAL-PROPERTIES; ALLOY; TITANIUM; TEMPERATURE; MICROSTRUCTURE; COATINGS;

D O I：

10.1088/2053-1591/ab4cb4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, hot corrosion and oxidation behavior of Ti-6Al-4V alloys, which undergo different heat treatment, is investigated. For this purpose, four samples with different thermal histories were prepared by annealing, solutionizing, quenching in water and air and finally aged. The solutionizing temperature was 800 and 950 degrees C. Also, the aging temperature was 1050 degrees C. After the heat treatment process, the samples were exposed to a hot corrosion environment with a mixture of 60% V2O5 + 40% Na2SO4 as well as the oxidation process in the air. Microstructural and phase studies were performed by Field Emission Scanning Electron Microscopy (FESEM), and x-ray Diffraction (XRD), respectively, demonstrated that the samples that solution treated in 1050 degrees C for 1 h then quenched in water and aged at 550 degrees C for 4 h has the lowest hot corrosion and oxidation rate. Achieving maximum hot corrosion resistance without applying hot corrosion-resistant coatings can improve the durability of the parts in the petrochemical and gas turbine industries after coating or in case of coating failure.

引用

页数：14