Results 21 to 30 of about 20,005 (243)

Effect of heat treatment on microstructure and mechanical property of selective laser melted high speed steel

open access: yesCailiao 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

Thermally-activated precipitation strengthening

open access: yesJournal of Materials Research and Technology
Precipitation strengthening is a key strengthening method for metallic materials. However, the temperature effect on precipitation strengthening is still unclear to date.
Guangpeng Sun, Liqiang Zhang, Bin Wen
doaj   +1 more source

Strengthening Mechanisms of Magnesium-Lithium Based Alloys and Composites

open access: yesAdvances in Materials Science and Engineering, 2016
Mg-Li based alloys are widely applied in various engineering applications. The strength of these alloys is modified and enhanced by different strengthening mechanisms.
C. O. Muga, Z. W. Zhang
doaj   +1 more source

Precipitation behavior of V- N microalloyed steel at the normalizing process

open access: yes工程科学学报, 2015
The precipitation behavior of V-N microalloyed steel at the normalizing process was studied by physicochemical phase analysis and high resolution transmission electron microscopy.
SU Hang   +4 more
doaj   +1 more source

Effect of Sc on microstructure and mechanical properties of ZL205A alloy

open access: yesCailiao 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
doaj   +1 more source

Making ultra-high-yield-strength and high-ductility austenitic stainless steel by grain refinement and regularly arranging Cu-nanoprecipitates

open access: yesMaterials Research Letters
This 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

The effect of vanadium content on hierarchical martensite structure and yield strength of petroleum casing steels

open access: yesJournal of Materials Research and Technology, 2022
In the present study, the influence of V content and tempering temperature on the precipitation behavior of hierarchical martensite and yield strength of petroleum casing steels has been systematically studied.
Huaying Li   +6 more
doaj   +1 more source

A great enhancement of both strength and plasticity in a dual-phase high-entropy alloy by multi-effects of high carbon addition

open access: yesMaterials & Design, 2023
High-entropy alloys (HEAs) have become an interesting research area for the novel alloying design paradigm. Interstitial carbon has usually been introduced to enhance mechanical properties of HEAs. To achieve addition of high carbon, this work designed a
Conghui Hu   +4 more
doaj   +1 more source

Effect of Zr Additions on Thermal Stability of Al-Cu Precipitates in As-Cast and Cold Worked Samples

open access: yesMetals, 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

Prediction of precipitation kinetics and strengthening in FeMnAlC lightweight steels

open access: yesJournal of Materials Research and Technology, 2021
Fe–Al–Mn–C steels have superior mechanical properties, such as high yield and tensile strengths and low density, which make them suitable for applications in the automotive and defense industries.
Jaeeun Lee   +6 more
doaj   +1 more source

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