Numerical Analysis of Precipitation Strengthening by γ-Precipitates in Nickel-Based Superalloy
نویسندگان
چکیده
منابع مشابه
Analysis of Cracks in the Pulsed Nd:YAG Laser Welded Joint of Nickel-Based Superalloy
The weldability of GTD-111 nickel-based superalloy by pulsed Nd:YAG laser welding with an average power of 250 W was studied, and the microstructural evolution and cracking characteristics were also investigated. The solidification cracking of the fusion zone (FZ) and the intergranular liquation cracking in the heat affected zone (HAZ) were observed in the joint. Solidification cracking was cau...
متن کاملFormation and Dissolution of γ’ Precipitates in IN792 Superalloy at Elevated Temperatures
Precipitation of γ’ phase in nickel-base superalloy IN792-5A was studied using in-situ Small Angle Neutron Scattering (SANS). It was found that additional precipitates are formed after reheating above 600 ̋C when the material is previously fast cooled (100 K/min) from 900 ̋C. The size distribution and volume fraction of the additional γ’ precipitates as well as of the already present medium-siz...
متن کاملAutomated Identification and Characterization of Secondary & Tertiary Γ’ Precipitates in Nickel-based Superalloys (preprint)
The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, includ...
متن کاملAfrl-rx-wp-tp-2010-4051 Measurement of Γ’ Precipitates in a Nickel- Based Superalloy Using Energy-filtered Transmission Electron Microscopy Coupled with Automated Segmenting Techniques
Precipitates of the ordered L12 ’ phase (dispersed in the face-centered cubic or FCC matrix) were imaged in Rene 88 DT, a commercial multicomponent Ni-based superalloy, using energy filtered transmission electron microscopy (EFTEM). Imaging was performed using the Cr, Co, Ni, Ti and Al elemental L-edges in the energy loss spectrum. Manual and automated segmentation procedures were utilized f...
متن کاملMeasurement of gamma' precipitates in a nickel-based superalloy using energy-filtered transmission electron microscopy coupled with automated segmenting techniques.
Precipitates of the ordered L1(2) gamma' phase (dispersed in the face-centered cubic or FCC gamma matrix) were imaged in Rene 88 DT, a commercial multicomponent Ni-based superalloy, using energy-filtered transmission electron microscopy (EFTEM). Imaging was performed using the Cr, Co, Ni, Ti and Al elemental L-absorption edges in the energy loss spectrum. Manual and automated segmentation proce...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the Japan Society of Mechanical Engineers Series A
سال: 2009
ISSN: 0387-5008,1884-8338
DOI: 10.1299/kikaia.75.595