Non-invasive temperature measurements by neutron diffraction in aero-engine components

Journal Article · Sun Dec 31 00:00:00 EST 1995 · Advances in X-Ray Analysis

DOI:https://doi.org/10.1007/978-1-4615-1797-9_2· OSTI ID:369798

Holden, T M; Root, J H; Tennant, D C ^[1]; Leggett, D ^[2]

---

1. AECL Research, Ontario (Canada)
2. Pratt and Whitney, Inc., Longueuil, Quebec (Canada)

A requirement exists in the aeronautical industry for measuring temperature non-invasively in critical components, such as the turbine disc in an operating engine. Neutron diffraction, unique among nuclear techniques, offers the possibility of measuring both temperature and strain within an operating engine by virtue of the high penetration of neutrons through industrial materials. Static diffraction experiments on Waspaloy and Ti6Al4V showed, by comparison with thermocouples, that both the diffraction peak position and the peak intensity can measure the temperature to within {+-}6 K at 800 K.

• Sponsoring Organization: USDOE
• OSTI ID: 369798
• Report Number(s): CONF-9408178-; ISSN 0376-0308; TRN: 96:004756-0001
• Journal Information: Advances in X-Ray Analysis, Vol. 38; Conference: 43. annual Denver x-ray conference on applications of x-ray analysis, Steamboat Spring, CO (United States), 1-5 Aug 1994; Other Information: PBD: 1995
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
66 PHYSICS
GAS TURBINE ENGINES
TEMPERATURE MEASUREMENT
NEUTRON DIFFRACTION
TEMPERATURE GRADIENTS
CALIBRATION
TESTING