Results 1 to 10 of about 48,041 (259)

Microstructure Comparison for AlSn20Cu Antifriction Alloys Prepared by Semi-Continuous Casting, Semi-Solid Die Casting, and Spray Forming

open access: yesMetals, 2022
Antifriction alloys such as AlSn20Cu are key material options for sliding bearings used in machinery. Uniform distribution and a near-equiaxed granularity tin phase are generally considered to be ideal characteristics of an AlSn20Cu antifriction alloy ...
Shuhui Huang   +5 more
doaj   +2 more sources

Studies on softening behavior and mechanism of heat-affected zone of spray formed 7055 aluminum alloy under TIG welding

open access: yesJournal of Materials Research and Technology, 2022
In this investigation, fine micro-zone specimens in the heat-affected zone (HAZ) of TIG welded spray formed 7055 aluminum alloy were obtained by heat treatment method.
Zhengping Lu   +4 more
doaj   +1 more source

Investigation of constitutive model of as-extruded spray-forming 7055 aluminum alloy based on BP artificial neural network

open access: yesJournal of Aeronautical Materials, 2021
Gleeble physical simulation technique was employed to investigate the high-temperature flow stress characteristics of the studied spray forming 7055 aluminum alloy.
LUO Rui   +8 more
doaj   +1 more source

Preparation and preliminary evaluation of sodium alginate/agarose/carboxymethyl chitosan spray film dressing carrying platelet rich plasma for wound repair

open access: yesZhongguo shuxue zazhi, 2023
Objective To develop a spray-on membrane dressing for wound repair containing platelet rich plasma (PRP) sodium alginate (SA)/agarose(AG)/carboxymethyl chitosan (CMCS).
Yubing XU   +6 more
doaj   +1 more source

Dry Sliding Wear Behavior and Mild–Severe Wear Transition of the AA2195-T6 Alloy under Different Loads

open access: yesCrystals, 2023
The mild–severe wear transition of aluminum alloys is considered evidence that the wear changes from a stable state to an unstable state, which is of great importance in engineering applications.
Qingqiang Chen   +4 more
doaj   +1 more source

Investigation of the Wear Behavior of Surface Welding AZ91 and AZ91+Gd Alloys under Variable Loading Conditions

open access: yesCrystals, 2021
Adding rare earth elements to magnesium alloys is an effective way to improve their wear resistance. However, the effect achieved is closely related to the friction condition.
Qingqiang Chen   +5 more
doaj   +1 more source

Deformation mechanism and microstructure evolution of hot extruded GH738 alloy fabricated by spray forming

open access: yesJournal of Aeronautical Materials, 2020
The research on hot deformation including flow behavior, microstructure evolution via EBSD method and the constitutive characteristic model of hot extruded GH738 alloy fabricated by spray forming was conducted by using Gleeble-3500TM simulator at the ...
WANG Yue   +6 more
doaj   +1 more source

Effect of long term ageing on γ' phase in spray formed FGH100L superalloy settled by different solution treatment

open access: yesFenmo yejin jishu, 2021
The effects of long term ageing on the size and morphology of γ' precipitations in the spray formed nickel-based superalloy FGH100L after subsolvs and supersolvs heat treatment (HT) were studied by scanning electron microscope (SEM).
PENG Shi-qing   +4 more
doaj   +1 more source

Simultaneous enhancement of strength and ductility with nano dispersoids in nano and ultrafine grain metals: a brief review

open access: yesReviews on Advanced Materials Science, 2020
Grain refinement is the most universal and effective method of strengthening metallic materials, which is known as the “Hall-Petch” relationship. However, when grain size is refined to sub-micro regime (Ultrafine Grain, UFG) or even nano regime (Nano ...
Hu Yusheng   +7 more
doaj   +1 more source

Interfacial Behavior and Shear Strength of Al-25Si-4Cu-1Mg Joints by Transient Liquid Phase Bonding with Cu as Interlayer

open access: yesMetals, 2021
Spray-formed hypereutectic Al-Si-Cu-Mg alloy is the candidate for automotive and aerospace industries due to its superior wear resistance, lower thermal expansion coefficient and density, and higher thermal conductivity.
Kai Qi, Guo Xu, Fengjiang Wang
doaj   +1 more source

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