Results 11 to 20 of about 8,845 (225)

Crack initiation in a Ni-base superalloy [PDF]

open access: yesScripta Metallurgica, 1987
Oxide d ispers ion s t r e n g t h e n i n g (ODS) has been success fu l ly combined with -f' precipi ta t ion ha rden ing in the superal loy MA 6000. The development of MA 6000 is s t rong ly connected with new process ing techniques . The direct ional solidification process is used to produce columnar grains whereas ODS is a product of powder ...
INTVELD, AJH   +2 more
openaire   +2 more sources

Stress corrosion of Ni-based superalloys [PDF]

open access: yesMaterials at High Temperatures, 2017
AbstractThe development of gas turbines to increase fuel efficiency is resulting in progressively higher operating temperatures in the under platform regions of the blades. These regions have traditionally been considered low risk areas. However, higher metal temperatures combined with stresses and the deposition of contaminants from the cooling air ...
Brooking, Laurie   +3 more
openaire   +3 more sources

Coarsening Evolution of γ′ Phase and Failure Mechanism of Co-Ni-Al-Ti-Based Superalloys During Isothermal Aging

open access: yesFrontiers in Materials, 2022
Novel Co-based superalloys, as potentially ideal aero-engine hot section materials, have a higher temperature bearing capacity and better oxidation resistance than Ni-based superalloys.
Xuming Zhang   +11 more
doaj   +1 more source

Thermal transport properties of Ni–Co-based superalloy

open access: yesAIP Advances, 2020
We report systematic measurements of thermal transport properties of a Ni–Co-based superalloy at temperatures ranging from room temperature to around 800 K.
Asuka Miura   +3 more
doaj   +1 more source

Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation

open access: yesMetals, 2021
Ni-Cr-Mo-based superalloy is widely used as a key component in many critical environments. To ensure that the manufacturing process does not impact the long-term service performance of these components, the aging precipitation behavior at different ...
Pengyan Zhang   +3 more
doaj   +1 more source

Probing single crystal orientation by X-ray diffraction for nickel-based superalloys

open access: yesResults in Physics, 2021
The deviation angles of Ni-based single crystal superalloys are investigated by two techniques of rotating orientation X-ray diffraction (RO-XRD) and back-reflection Laue X-ray diffraction (BRL-XRD).
Yumin Wang   +3 more
doaj   +1 more source

Microsegregation of a new Ni-Co-based superalloy prepared through electron beam smelting and its homogenization treatment

open access: yesJournal of Materials Research and Technology, 2020
A new Ni-Co-based superalloy was prepared through electron beam smelting (hereinafter referred to as EBS Ni-Co superalloy). The microstructure and element distribution of the superalloy were characterized through optical microscopy (OM), scanning ...
Xinpeng Zhuang   +5 more
doaj   +1 more source

Slip analysis in a Ni-base superalloy [PDF]

open access: yesActa Materialia, 2005
A Ni-base superalloy single crystal with Gamma/Gamma' structure was tested at room temperature along the , and directions. Consistent with previously reported investigations, this alloy did not obey the Schmid law and the CRSS (critical resolved shear stress) was noticeably lower for the -oriented samples.
Materials Science and Engineering Department, University of Florida, P.O. Box 116400, Gainesville, FL 32611, USA ( host institution )   +3 more
openaire   +2 more sources

Oxygen changes crack modes of Ni-based single crystal superalloy

open access: yesMaterials Research Letters, 2021
Oxygen-affected cracking commonly presents on thin Ni-based single crystal superalloy components serving in high temperature and oxidizing environments.
Xueqiao Li   +15 more
doaj   +1 more source

Near‐Net Shape Hot Isostatic Pressing: Microstructural Analysis and Hardness Evolution at a Steel–Nickel Alloy Interface

open access: yesAdvanced Materials Interfaces, 2022
For near‐net shape hot isostatic pressing (HIP) process, the interaction between capsules and consolidating powders at a high pressure and temperature leads to a strong interfacial element diffusion, which is harmful to the surface microstructure and ...
Lebiao Yang   +6 more
doaj   +1 more source

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