Microstructural evolution of hydroformed Inconel 625 bellows

被引：22

作者：

Pavithra, E. ^{[1
]}

Kumar, V. S. Senthil ^{[1
]}

机构：

[1] Anna Univ, Dept Mech Engn, Coll Engn, Guindy Campus, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 669卷

关键词：

Fatiuge test; Inconel; 625; Bellows; Microstructure; SEM; EDS; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; FAILURE ANALYSIS; FORMING PROCESS; ALLOY; METAL; TEMPERATURE; FATIGUE; SUPERALLOY; CRACKING;

D O I：

10.1016/j.jallcom.2016.02.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fatigue cycle tests of Inconel 625 superalloy bellows expansion joints were conducted using a Fatigue testing machine at both room and elevated (650 degrees C) temperatures. Optical Microscope, Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectroscopy (EDS) were employed to investigate the microstructure evolution of grains and its boundaries. The intermetallic phases like gamma '' were found and carbide precipitates were observed on the grain boundaries at elevated temperature. The recrystallization of the grains and its growth at the elevated temperature is characterized. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：199 / 204

页数：6

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