Characteristics and heat treatment of cold-sprayed Al-Sn binary alloy coatings

Xian Jin Ning, Jin Hong Kim, Hyung Jun Kim, Changhee Lee

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

In this study, Al-Sn binary alloy coatings were prepared with Al-5 wt.% Sn (Al-5Sn) and Al-10 wt.% Sn (Al-10Sn) gas atomized powders by low pressure and high pressure cold spray process. The microstructure and microhardness of the coatings were characterized. To understand the coarsening of tin in the coating, the as-sprayed coatings were annealed at 150, 200, 250 and 300 °C for 1 h, respectively. The effect of annealing on microstructure and the bond strength of the coatings were investigated. The results show that Al-5Sn coating can be deposited by high pressure cold spray with nitrogen while Al-10Sn can only be deposited by low pressure cold spray with helium gas. Both Al-5Sn and Al-10Sn coatings present dense structures. The fraction of Sn in as-sprayed coatings is consistent with that in feed stock powders. The coarsening and/or migration of Sn phase in the coatings were observed when the annealing temperature exceeds 200 °C. Furthermore, the microhardness of the coatings decreased significantly at the annealing temperature of 250 °C. EDXA analysis shows that the heat treatment has no significant effect on fraction of Sn phase in Al-5Sn coatings. Bonding strength of as-sprayed Al-10Sn coating is slightly higher than that of Al-5Sn coating. Annealing at 200 °C can increase the bonding strength of Al-5Sn coatings.

Original languageEnglish
Pages (from-to)3933-3939
Number of pages7
JournalApplied Surface Science
Volume255
Issue number7
DOIs
StatePublished - 2009 Jan 15

Fingerprint

Binary alloys
Heat treatment
Coatings
Annealing
Sprayed coatings
Coarsening
Powders
Microhardness
Gases
Helium
Microstructure
Tin
Nitrogen

Keywords

  • Al-Sn binary coating
  • Bearing materials
  • Bond strength
  • Cold gas dynamic spray
  • Heat treatment

Cite this

Ning, Xian Jin ; Kim, Jin Hong ; Kim, Hyung Jun ; Lee, Changhee. / Characteristics and heat treatment of cold-sprayed Al-Sn binary alloy coatings. In: Applied Surface Science. 2009 ; Vol. 255, No. 7. pp. 3933-3939.
@article{c27eaa8df29445128c4e03aa820454cd,
title = "Characteristics and heat treatment of cold-sprayed Al-Sn binary alloy coatings",
abstract = "In this study, Al-Sn binary alloy coatings were prepared with Al-5 wt.{\%} Sn (Al-5Sn) and Al-10 wt.{\%} Sn (Al-10Sn) gas atomized powders by low pressure and high pressure cold spray process. The microstructure and microhardness of the coatings were characterized. To understand the coarsening of tin in the coating, the as-sprayed coatings were annealed at 150, 200, 250 and 300 °C for 1 h, respectively. The effect of annealing on microstructure and the bond strength of the coatings were investigated. The results show that Al-5Sn coating can be deposited by high pressure cold spray with nitrogen while Al-10Sn can only be deposited by low pressure cold spray with helium gas. Both Al-5Sn and Al-10Sn coatings present dense structures. The fraction of Sn in as-sprayed coatings is consistent with that in feed stock powders. The coarsening and/or migration of Sn phase in the coatings were observed when the annealing temperature exceeds 200 °C. Furthermore, the microhardness of the coatings decreased significantly at the annealing temperature of 250 °C. EDXA analysis shows that the heat treatment has no significant effect on fraction of Sn phase in Al-5Sn coatings. Bonding strength of as-sprayed Al-10Sn coating is slightly higher than that of Al-5Sn coating. Annealing at 200 °C can increase the bonding strength of Al-5Sn coatings.",
keywords = "Al-Sn binary coating, Bearing materials, Bond strength, Cold gas dynamic spray, Heat treatment",
author = "Ning, {Xian Jin} and Kim, {Jin Hong} and Kim, {Hyung Jun} and Changhee Lee",
year = "2009",
month = "1",
day = "15",
doi = "10.1016/j.apsusc.2008.10.074",
language = "English",
volume = "255",
pages = "3933--3939",
journal = "Applied Surface Science",
issn = "0169-4332",
number = "7",

}

Characteristics and heat treatment of cold-sprayed Al-Sn binary alloy coatings. / Ning, Xian Jin; Kim, Jin Hong; Kim, Hyung Jun; Lee, Changhee.

In: Applied Surface Science, Vol. 255, No. 7, 15.01.2009, p. 3933-3939.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Characteristics and heat treatment of cold-sprayed Al-Sn binary alloy coatings

AU - Ning, Xian Jin

AU - Kim, Jin Hong

AU - Kim, Hyung Jun

AU - Lee, Changhee

PY - 2009/1/15

Y1 - 2009/1/15

N2 - In this study, Al-Sn binary alloy coatings were prepared with Al-5 wt.% Sn (Al-5Sn) and Al-10 wt.% Sn (Al-10Sn) gas atomized powders by low pressure and high pressure cold spray process. The microstructure and microhardness of the coatings were characterized. To understand the coarsening of tin in the coating, the as-sprayed coatings were annealed at 150, 200, 250 and 300 °C for 1 h, respectively. The effect of annealing on microstructure and the bond strength of the coatings were investigated. The results show that Al-5Sn coating can be deposited by high pressure cold spray with nitrogen while Al-10Sn can only be deposited by low pressure cold spray with helium gas. Both Al-5Sn and Al-10Sn coatings present dense structures. The fraction of Sn in as-sprayed coatings is consistent with that in feed stock powders. The coarsening and/or migration of Sn phase in the coatings were observed when the annealing temperature exceeds 200 °C. Furthermore, the microhardness of the coatings decreased significantly at the annealing temperature of 250 °C. EDXA analysis shows that the heat treatment has no significant effect on fraction of Sn phase in Al-5Sn coatings. Bonding strength of as-sprayed Al-10Sn coating is slightly higher than that of Al-5Sn coating. Annealing at 200 °C can increase the bonding strength of Al-5Sn coatings.

AB - In this study, Al-Sn binary alloy coatings were prepared with Al-5 wt.% Sn (Al-5Sn) and Al-10 wt.% Sn (Al-10Sn) gas atomized powders by low pressure and high pressure cold spray process. The microstructure and microhardness of the coatings were characterized. To understand the coarsening of tin in the coating, the as-sprayed coatings were annealed at 150, 200, 250 and 300 °C for 1 h, respectively. The effect of annealing on microstructure and the bond strength of the coatings were investigated. The results show that Al-5Sn coating can be deposited by high pressure cold spray with nitrogen while Al-10Sn can only be deposited by low pressure cold spray with helium gas. Both Al-5Sn and Al-10Sn coatings present dense structures. The fraction of Sn in as-sprayed coatings is consistent with that in feed stock powders. The coarsening and/or migration of Sn phase in the coatings were observed when the annealing temperature exceeds 200 °C. Furthermore, the microhardness of the coatings decreased significantly at the annealing temperature of 250 °C. EDXA analysis shows that the heat treatment has no significant effect on fraction of Sn phase in Al-5Sn coatings. Bonding strength of as-sprayed Al-10Sn coating is slightly higher than that of Al-5Sn coating. Annealing at 200 °C can increase the bonding strength of Al-5Sn coatings.

KW - Al-Sn binary coating

KW - Bearing materials

KW - Bond strength

KW - Cold gas dynamic spray

KW - Heat treatment

UR - http://www.scopus.com/inward/record.url?scp=58149097342&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2008.10.074

DO - 10.1016/j.apsusc.2008.10.074

M3 - Article

AN - SCOPUS:58149097342

VL - 255

SP - 3933

EP - 3939

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

IS - 7

ER -