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114930

EFFECT OF HEAT TREATMENT AND BATH COMPOSITION OF ELECTROLESS NICKEL-PLATING ON CAVITATION EROSION RESISTANCE

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Mining and Metallurgical Engineering.

Abstract

Electroless Nickel-Phosphorus coatings have had a lot of interest in various industries due to outstanding characteristics. Some of the highlighted characteristics of electroless Ni-P coatings are superior corrosion and wear resistance. But the effectiveness of electroless Ni-P coating in resisting cavitation damage is not studied so well and is not so clear. In the present investigation, electroless Ni-P coatings were prepared at various conditions including the type of bath, heat treatment temperature and plating solutions composition. The properties of electroless Ni-P coatings were characterized using X-ray diffraction technique (XRD), energy dispersive X- ray (EDX) optical microscope, and microhardness tester. The cavitation erosion tests were carried out to study the effect bath type, heat treatment temperature and plating solutions composition on the deposit coatings. The XRD results indicate that the as-deposit had crystalline structure for alkaline bath and amorphous structure for acid bath. Heat treatment of the coatings produced mixture of polycrystalline phases. The thickness of deposit films depend on the bath type and concentration and were the least for alkaline baths. Maximum hardness of heat treated samples was found to depend on the solution composition and occurs at temperature 300 °C and 400°C. The highest erosion resistance of the coatings was observed for the heat treated deposits at temperature of 650 °C, and comes to the fore the coatings formed in alkaline baths followed by that formed in acid baths. The best erosion resistance for deposits formed in alkaline baths is attributed to the small thickness and crystalline structure. The results showed also that the cavitation erosion resistance is independent on surface hardness.

DOI

10.21608/jesaun.2013.114930

Keywords

Electroless Ni- P coatings, Heat treatment, Cavitation erosion

Authors

First Name

S. A.

Last Name

Karrab

MiddleName

-

Affiliation

Mining and Metallurgical Engineering Department, Assiut University, Assiut 71516, Egypt

Email

sgarrab2005@yahoo.co.uk

City

-

Orcid

-

First Name

M. A.

Last Name

Doheim

MiddleName

-

Affiliation

Mining and Metallurgical Engineering Department, Assiut University, Assiut 71516, Egypt

Email

mohdoheim@yahoo.com

City

-

Orcid

-

First Name

Mohammed S.

Last Name

Aboraia

MiddleName

-

Affiliation

Mining and Metallurgical Engineering Department, Assiut University, Assiut 71516, Egypt

Email

maboraia@hotmail.com

City

-

Orcid

-

First Name

S.M.

Last Name

Ahmed

MiddleName

-

Affiliation

Mechanical Engineering Department, Majmaah University, SA

Email

-

City

-

Orcid

-

Volume

41

Article Issue

No 5

Related Issue

16868

Issue Date

2013-09-01

Receive Date

2013-07-27

Publish Date

2013-09-01

Page Start

1,989

Page End

2,011

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 41_Issue No 5_Pages 1989-2011.pdf

PDF . 1.0MB

Link

https://jesaun.journals.ekb.eg/article_114930.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114930

Order

17

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

EFFECT OF HEAT TREATMENT AND BATH COMPOSITION OF ELECTROLESS NICKEL-PLATING ON CAVITATION EROSION RESISTANCE

Details

Type

Article

Created At

23 Jan 2023