Effects of annealing temperature and quenching medium on microstructure, mechanical properties as well as fatigue behavior of Ti-6Al-4V alloy

被引：43

作者：

Davari, Navid ^{[1
]}

Rostami, Atefe ^{[1
]}

Abbasi, Seyyed Mahdi ^{[2
]}

机构：

[1] Semnan Univ, Fac Mat Sci & Engn, Semnan 3513119111, Iran

[2] Malek Ashtar Univ Technol, Metall Mat Res Ctr, Tehran, Iran

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 683卷

关键词：

Quenching medium; Annealing temperature; Primary alpha; Equiaxed alpha; Transitioned beta; Fatigue; HIGH-CYCLE FATIGUE; TITANIUM-ALLOYS; HEAT-TREATMENT;

D O I：

10.1016/j.msea.2016.11.095

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

In this research, the effects of annealing temperature and quenching medium on microstructure, mechanical properties as well as high cycle and low cycle fatigue behavior of Ti-6Al-4V were investigated. Four types of different heat treatments consisting annealing at 930 degrees C and 970 degrees C followed by air cooling or water quenching were considered. Microstructural and mechanical evolutions were evaluated using optical microscope (OM), hardness and tensile tests. According to S-N curves, fatigue behavior followed up the same trend in both high and low cycle fatigue regimes in a way that the higher the annealing temperature and more intense the quenching medium, the better fatigue resistance. SEM fractography of fatigue surfaces indicated cleavage ductile fracture mode in all kinds of applied heat treatments.

引用

页码：1 / 8

页数：8

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