Fretting Fatigue Cracking of a Center Guide Bolt Supporting the Combustion Chamber in a Heavy-duty Gas Turbine Engine

被引：0
|
作者：
Neidel, A. [1 ]
Fischer, B. [1 ]
Gaedicke, T. [1 ]
机构：
[1] Siemens AG, Energy Sect, Gasturbinenwerk Berlin, Werkstoffpruflab, Huttenstr 12, D-10548 Berlin, Germany
来源：
PRAKTISCHE METALLOGRAPHIE-PRACTICAL METALLOGRAPHY | 2018年 / 55卷 / 03期
关键词：
PREDICTION;
D O I：
10.3139/147.110498
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The slotted center guide bolt of the center guide feature of the lower part of the outer shell of an annular combustion chamber was found fractured in a heavy-duty gas turbine engine used for power generation, after approximately 5.500 operating hours. The incident was a one-off event and not a recurring incident. No similar events were reported from the fleet; hence the failure was not considered a field issue. The metallurgical root cause investigation that was ordered to determine the failure mechanism revealed that the incident center guide bolt failed by fretting fatigue cracking, a high cycle fatigue (HCF) phenomenon.
引用
收藏
页码：158 / 175
页数：18
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