Results 11 to 20 of about 12,952 (301)

γ′′ Phase transformation, precipitation hardening, hetero-deformation induced hardening and deformation mechanisms in a Nb-alloyed medium-entropy alloy [PDF]

open access: yesMaterials & Design, 2023
In present work, a novel γ′′-strengthened Nb-alloyed medium-entropy alloy (MEA) was successfully fabricated and systematically investigated. Our results evidence that the γ′′ phase brings out significant precipitation hardening effect (∼10.2 %volume ...
Wenjie Lu   +5 more
doaj   +2 more sources

Precipitation hardening in dilute Al–Zr alloys [PDF]

open access: yesJournal of Materials Research and Technology, 2018
The aim of this study was to investigate the effect of solute content (hipoperitectic Al–0.22 wt.%Zr and hiperperitectic Al–0.32 wt.%Zr) on the precipitation hardening and microstructural evolution of dilute Al–Zr alloys isothermally aged.
Pedro Henrique Lamarão Souza   +2 more
doaj   +2 more sources

Changes in hardness of magnesium alloys due to precipitation hardening [PDF]

open access: yesProduction Engineering Archives, 2018
This paper deals with the evaluation of changes in hardness of magnesium alloys during precipitation hardening that are nowadays widely used in different fields of industry. It focuses exactly on AZ31, AZ61 and AZ91 alloys.
Oršulová Tatiana, Palček Peter
doaj   +4 more sources

Modelling of Precipitation Hardening Behavior of 17-4PH Steel and The Influence of Previous Deformation [PDF]

open access: yesMaterials Research
UNS S17400 (AISI 17-4PH) is a precipitation hardening steel with several applications in energy generation, oil and gas, aerospace and chemical industries. The hardening effect is mainly produced by the precipitation of copper rich phases (CRP).
Leosdan F. Noris   +5 more
doaj   +3 more sources

Recent development of thermally assisted surface hardening techniques: A review

open access: yesAdvances in Industrial and Manufacturing Engineering, 2021
Thermally assisted surface hardening techniques have led to a surge in research efforts and industrial applications, with emphasis on strengthening of metallic materials with high work hardening, high strength and/or poor deformability.
Jun Liu, Chang Ye, Yalin Dong
doaj   +1 more source

Effect of Sn addition on age-hardening and precipitation behavior of Al-Mg-Si alloys with different Mg/Si ratios

open access: yesCailiao gongcheng, 2023
The effect of Sn addition on age-hardening and precipitation behavior of Al-Mg-Si alloy with different Mg/Si ratios was investigated by using the hardness test and TEM characterization.
TU Wenbin   +4 more
doaj   +1 more source

The influence of artificial aging on tensile properties of Al 6061-T4

open access: yesInternational Journal of Applied Sciences and Smart Technologies, 2022
This paper presents an explanation related to experimental testing in the form of the tensile properties of Al 6061. Al 6061 was heat treated by the precipitation hardening method. The precipitation hardening consisted of T4 and T6 treatment.
Freddy Saputra Romamti-Ezer Taebenu   +4 more
doaj   +1 more source

Material iterative development of aero carburizing gear steels

open access: yesJournal of Aeronautical Materials, 2023
In this paper, the intergenerational development, component characteristics, and strengthening mechanism of carburized gear materials for aerospace power transmission systems are reviewed.
ZHENG Yi   +3 more
doaj   +1 more source

Electric current-induced precipitation hardening in advanced high-strength steel [PDF]

open access: yes, 2022
Effect of electric current on precipitation hardening for advanced high-strength steel is investigated based on mechanical testing and microscopic observation. Complex-phase steel containing nano-sized Nb-bearing carbides was used.
Park, Ju-Won   +11 more
core   +1 more source

Casting of precipitation-hardening steel [PDF]

open access: yes, 2014
17-4 PH and its cast equivalent Cb7Cu-1 are stainless precipitation-hardening steels with high strength and good corrosion resistance. Literature shows that the material properties can be tailored in detail by fine-tuning alloy composition and heat treatment. However, the result is also very sensitive to small changes in production environment.
Lauenstein, Åsa
openaire   +2 more sources

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