Results 21 to 30 of about 1,050,906 (291)
Materials Research Letters, 2023 A heterogeneous structure by designing soft/hard domains with dramatically different strengths is effective to maintain the high ductility of metals but it sacrifices the yield strength.
Haoyu Teng +6 more
doaj +1 more source
TEM Study of High-Temperature Precipitation of Delta Phase in Inconel 718 Alloy [PDF]
, 2011 Inconel 718 is widely used because of its ability to retain strength at up to 650◦C for long periods of time through coherent metastable γ” Ni3Nb precipitation associated with a smaller volume fraction of γ’ Ni3Al precipitates.
Dehmas, Moukrane +7 more
core +1 more source
Cailiao gongcheng, 2022 Based on selective laser melting (SLM), the high speed steel samples with nearly full density and low defects were prepared by using the printing strategy consisted of preheated printing substrate, low laser power and slow scanning speed.
YANG Zhikai, BAI Jianlin, ZHANG Xinyue
doaj +1 more source
Primary and secondary precipitates in a hierarchical-precipitate-strengthened ferritic alloy [PDF]
Journal of Alloys and Compounds, 2017 Abstract The microstructures of a hierarchical-precipitate-strengthened ferritic alloy are characterized, using transmission-electron microscopy (TEM) and atom-probe tomography (APT). The alloy shows duplex precipitates. The primary precipitate with an average edge length of 90 nm consists of NiAl- and Ni2TiAl-type phases, while the secondary ...
Gian Song +5 more
openaire +1 more source
STRENGTHENING CONTRIBUTIONS OF STRONG ORDERED PRECIPITATES [PDF]
Philosophical Magazine A, 1987 Abstract The Hanson-Morris solution for the critical resolved shear stress of a random array of point obstacles is modified and applied to strong ordered precipitates. The solution approximately accounts for the effects of dislocation self-interactions and elastic anisotropy.
J. Glazer, J. W. Morris
openaire +3 more sources
Effect of Zr Additions on Thermal Stability of Al-Cu Precipitates in As-Cast and Cold Worked Samples
Metals, 2018 While Zr is frequently added to Al alloys to control grain size with the formation of large (>1 μm) primary precipitates, little research has been conducted on the effect of nanoscale Al3Zr precipitates on Al alloys. By comparing the precipitation and
Kyle Deane, Paul Sanders
doaj +1 more source
Strengthening Mechanism of a Single Precipitate in a Metallic Nanocube
Nano Letters, 2018 Nanoprecipitates play a significant role in the strength, ductility, and damage tolerance of metallic alloys through their interaction with crystalline defects, especially dislocations. However, the difficulty of observing the action of individual precipitates during plastic deformation has made it challenging to conclusively determine the mechanisms ...
Mehrdad T. Kiani +4 more
openaire +3 more sources
Assessing Precipitation Delineation Capabilities of Spaceborne Radars [PDF]
, 2022 Spaceborne radars uniquely measure, provide the finest depiction of, and give the most accurate estimate of precipitation globally from space. The Global Precipitation Measurement (GPM) mission dual-frequency precipitation radar (DPR) is the successor to
Searls, Maresa
core
Determining the size of lightning-induced electron precipitation patches [PDF]
, 2002 [1] We analyze Trimpi signatures during 23 and 24 April 1994 at four sites on or near the Antarctic Peninsula (Palmer, Faraday, Rothera, and Halley) on subionospheric VLF signals received from four U. S.
Clilverd, MA +13 more
core +2 more sources
Materials Research LettersThis study achieves an unprecedented combination of ultra-high yield strength (1300 MPa) and high ductility (25%) in austenitic stainless steel (ASS) through grain refinement and innovative Cu microalloying.
Chengyang Hu +4 more
doaj +1 more source