Isothermal and thermomechanical fatigue behavior of aluminide coated near α titanium alloy

被引：11
|
作者：
Prasad, Kartik [1 ]
Parlikar, Chandrakant [1 ]
Das, D. K. [1 ]
机构：
[1] Def Met Res Lab, Hyderabad 500058, Andhra Pradesh, India
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2016年 / 92卷
关键词：
Titanium alloy; Thermomechanical fatigue; Low cycle fatigue; Fractography; Coating; THERMAL BARRIER COATINGS; NICKEL-BASE SUPERALLOY; TI ALLOY; OXIDATION BEHAVIOR; TENSILE PROPERTIES; MICROSTRUCTURE; IMI-834;
D O I：
10.1016/j.ijfatigue.2016.07.002
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Isothermal and thermomechanical fatigue (TMF) behavior of titanium aluminide coated near a titanium alloy Titan 29A has been studied. TMF behavior was studied in the temperature interval of 300 degrees C <-> 600 degrees C and isothermal low'cycle fatigue test was carried out at 300 degrees C and 600 degrees C. By observation of cross-sectional microstructure and fracture surfaces of failed specimens, the likely sites of crack initiation and early stages of crack propagation have been identified. Fatigue lives exhibited by the alloy under isothermal and TMF loading have been analyzed in light of microstructural observations to gain insight into the operating damage mechanisms. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：107 / 115
页数：9
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