Results 21 to 30 of about 25,614 (293)
Chemical Ordering induced Strengthening in Lightweight Mg Alloys
Nanomaterials, 2022 The influence of structure and composition on precipitation phenomena in Al-bearing BCC/HCP Mg alloys are studied via diffusion couple technique. Interdiffusion induced by the resultant composition gradient results in a change in crystal structure from ...
Yunnuo Duan +7 more
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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
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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
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Effect of pre-aging on microstructure and mechanical properties of Al-Mg-Si alloy containing 0.1%In
Cailiao gongcheng, 2023 The combined effect of trace addition of In and different pre-aging processes on the microstructure and mechanical properties for Al-Mg-Si alloys was investigated by using hardness test, tensile test, scanning electron microscope (SEM) and transmission ...
XU Yaqi +5 more
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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
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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
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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
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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
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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
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Effect of Sc on microstructure and mechanical properties of ZL205A alloy
Cailiao gongcheng, 2020 The microstructure and ageing precipitation behavior of ZL205A alloy with different addition of Sc were investigated by OM, SEM and TEM. The results show that the grain refinement effect of Sc (up to 0.12%, mass fraction, the same below) is not observed ...
LIU Shan-guang +5 more
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