Ti-Al composite coating prepared by laser cladding on steel surface

Wenxiong He; Jian Zhao; Zhijun Lv; Hongyun Zhao

Ti-Al composite coating prepared by laser cladding on steel surface

Wenxiong He
, Jian Zhao
, Zhijun Lv
, Hongyun Zhao

Harbin Institute of Technology
Harbin Institute of Technology
Offshore Oil Engineering (Qingdao) Co. LTD.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

In order to improve the microhardness and corrosion resistance of Q235 steel, Ti-Al intermetallic compound composite coating were prepared on Q235 steel surface by using laser cladding with the addition of mechanical milled Ti, Al powder. The microstructure of Ti-Al composite coating was analyzed using DTA, XRD and SEM, while the microhardness and corrosion resistance of the cladding layers were measured. The results showed that Ti-Al mixed powders can be refined by milling. Metallurgical bonding was formed between the base metal and the cladded coating which were composed of Al₃Fe, Al₃Ti, Fe, AlN and FeO. The microhardness of the cladded layer was high and corrosion resistance was excellent. When the laser power was 1 000 W and scanning speed was 600 mm/min, the highest microhardness of the coating reached at 949.5 HV, and the corrosion resistance impedance could be 600 kΩ,.

Original language	English
Pages (from-to)	85-88
Number of pages	4
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	36
Issue number	5
State	Published - 25 May 2015
Externally published	Yes

Keywords

Corrosion resistance
Laser cladding
Mechanical milling
Microhardness
Ti-Al intermetallic compound

Cite this

@article{ee6a9f236b474267a8784829f215f031,

title = "Ti-Al composite coating prepared by laser cladding on steel surface",

abstract = "In order to improve the microhardness and corrosion resistance of Q235 steel, Ti-Al intermetallic compound composite coating were prepared on Q235 steel surface by using laser cladding with the addition of mechanical milled Ti, Al powder. The microstructure of Ti-Al composite coating was analyzed using DTA, XRD and SEM, while the microhardness and corrosion resistance of the cladding layers were measured. The results showed that Ti-Al mixed powders can be refined by milling. Metallurgical bonding was formed between the base metal and the cladded coating which were composed of Al3Fe, Al3Ti, Fe, AlN and FeO. The microhardness of the cladded layer was high and corrosion resistance was excellent. When the laser power was 1 000 W and scanning speed was 600 mm/min, the highest microhardness of the coating reached at 949.5 HV, and the corrosion resistance impedance could be 600 kΩ,.",

keywords = "Corrosion resistance, Laser cladding, Mechanical milling, Microhardness, Ti-Al intermetallic compound",

author = "Wenxiong He and Jian Zhao and Zhijun Lv and Hongyun Zhao",

year = "2015",

month = may,

day = "25",

language = "英语",

volume = "36",

pages = "85--88",

journal = "Hanjie Xuebao/Transactions of the China Welding Institution",

issn = "0253-360X",

publisher = "Harbin Research Institute of Welding",

number = "5",

}

TY - JOUR

T1 - Ti-Al composite coating prepared by laser cladding on steel surface

AU - He, Wenxiong

AU - Zhao, Jian

AU - Lv, Zhijun

AU - Zhao, Hongyun

PY - 2015/5/25

Y1 - 2015/5/25

N2 - In order to improve the microhardness and corrosion resistance of Q235 steel, Ti-Al intermetallic compound composite coating were prepared on Q235 steel surface by using laser cladding with the addition of mechanical milled Ti, Al powder. The microstructure of Ti-Al composite coating was analyzed using DTA, XRD and SEM, while the microhardness and corrosion resistance of the cladding layers were measured. The results showed that Ti-Al mixed powders can be refined by milling. Metallurgical bonding was formed between the base metal and the cladded coating which were composed of Al3Fe, Al3Ti, Fe, AlN and FeO. The microhardness of the cladded layer was high and corrosion resistance was excellent. When the laser power was 1 000 W and scanning speed was 600 mm/min, the highest microhardness of the coating reached at 949.5 HV, and the corrosion resistance impedance could be 600 kΩ,.

AB - In order to improve the microhardness and corrosion resistance of Q235 steel, Ti-Al intermetallic compound composite coating were prepared on Q235 steel surface by using laser cladding with the addition of mechanical milled Ti, Al powder. The microstructure of Ti-Al composite coating was analyzed using DTA, XRD and SEM, while the microhardness and corrosion resistance of the cladding layers were measured. The results showed that Ti-Al mixed powders can be refined by milling. Metallurgical bonding was formed between the base metal and the cladded coating which were composed of Al3Fe, Al3Ti, Fe, AlN and FeO. The microhardness of the cladded layer was high and corrosion resistance was excellent. When the laser power was 1 000 W and scanning speed was 600 mm/min, the highest microhardness of the coating reached at 949.5 HV, and the corrosion resistance impedance could be 600 kΩ,.

KW - Corrosion resistance

KW - Laser cladding

KW - Mechanical milling

KW - Microhardness

KW - Ti-Al intermetallic compound

UR - https://www.scopus.com/pages/publications/84936741276

M3 - 文章

AN - SCOPUS:84936741276

SN - 0253-360X

VL - 36

SP - 85

EP - 88

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 5

ER -

Ti-Al composite coating prepared by laser cladding on steel surface

Abstract

Keywords

Other files and links

Fingerprint

Cite this