Improvement in surface integrity of CuAl8Fe3 bronze via diamond burnishing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00361543" target="_blank" >RIV/68407700:21340/22:00361543 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s00170-022-08664-9" target="_blank" >https://doi.org/10.1007/s00170-022-08664-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00170-022-08664-9" target="_blank" >10.1007/s00170-022-08664-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improvement in surface integrity of CuAl8Fe3 bronze via diamond burnishing

Popis výsledku v původním jazyce

The single-phase CuAl8Fe3 aluminum bronzes possess good strength and resistance to fatigue as well as high corrosion and wear resistance. Since this alloy contains less than 8.5% aluminum, it cannot be heat treated. Therefore, improvements in surface integrity (SI) can only be achieved via mechanical surface treatment. This article investigates the influence of the basic diamond burnishing (DB) process, as well as additional factors, on the SI characteristics of CuAl8Fe3 bronze. Using experiments and regression analyses, a multi-objective optimization of the DB process has been accomplished via non-dominated sorting genetic algorithm (NSGA-II) and optimal values of the factors have been established. Using these factor values, the SI characteristics of diamond-burnished CuAl8Fe3 specimens have been quantified. The conclusion has been reached that the DB of CuAl8Fe3 bronze can be implemented as mixed burnishing, i.e., DB results in a favorable combination of the height and shape parameters for the surface texture, very low roughness (nearly mirror surfaces), large (in absolute value) residual hoop and axial stresses at depths greater than 0.8 mm, high surface micro-hardness and strongly expressed grain-refined microstructures at depths of up to 0.15 mm. These SI characteristics suggest a significant increase in fatigue strength and wear resistance of CuAl8Fe3 bronze finished via DB.

Název v anglickém jazyce

Improvement in surface integrity of CuAl8Fe3 bronze via diamond burnishing

Popis výsledku anglicky

The single-phase CuAl8Fe3 aluminum bronzes possess good strength and resistance to fatigue as well as high corrosion and wear resistance. Since this alloy contains less than 8.5% aluminum, it cannot be heat treated. Therefore, improvements in surface integrity (SI) can only be achieved via mechanical surface treatment. This article investigates the influence of the basic diamond burnishing (DB) process, as well as additional factors, on the SI characteristics of CuAl8Fe3 bronze. Using experiments and regression analyses, a multi-objective optimization of the DB process has been accomplished via non-dominated sorting genetic algorithm (NSGA-II) and optimal values of the factors have been established. Using these factor values, the SI characteristics of diamond-burnished CuAl8Fe3 specimens have been quantified. The conclusion has been reached that the DB of CuAl8Fe3 bronze can be implemented as mixed burnishing, i.e., DB results in a favorable combination of the height and shape parameters for the surface texture, very low roughness (nearly mirror surfaces), large (in absolute value) residual hoop and axial stresses at depths greater than 0.8 mm, high surface micro-hardness and strongly expressed grain-refined microstructures at depths of up to 0.15 mm. These SI characteristics suggest a significant increase in fatigue strength and wear resistance of CuAl8Fe3 bronze finished via DB.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

The International Journal of Advanced Manufacturing Technology

ISSN

0268-3768

e-ISSN

1433-3015

Svazek periodika

119

Číslo periodika v rámci svazku

9-10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

5885-5902

Kód UT WoS článku

000743472700005

EID výsledku v databázi Scopus

2-s2.0-85123104929