Handbook of Case Histories in Failure Analysis
Failure of the J79 Engine Compressor Blade Due to Stall
-
Published:2019
Abstract
Rotor blades in the compressor section of a J79 engine had failed. Optical, stereoscopic, microhardness testing, and SEM examinations were conducted to determine the cause. The blades were made of STS403 and were used uncoated. They were damaged over an extensive area, from the 15th through the 17th compressor stages, as were stator vanes and casing sections. The fractured surface of the 17th blade showed multiple origins along with secondary cracking and extensive propagation that preceded separation. The metallographic analysis of the microstructure suggested work hardening. Based on the results, the cause of the fractured blade was high-amplitude fatigue...
Sign in
ASM members
Member Sign InKyo-Soo Song, Seon-Gab Kim, Young-Ha Hwang, Failure of the J79 Engine Compressor Blade Due to Stall, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019, p 37–42, https://doi.org/10.31399/asm.fach.v03.c9001757
Download citation file:
Understanding the Basics Collection
8-Volume Digital Library Exclusive
The Understanding the Basics Collection provides comprehensive coverage of critical topics in metallurgy. These introductory guides present critical information on key topics related to materials processing, performance, and evaluation.