Improvement of the oxidation and wear resistance of pure Ti by laser cladding at elevated temperature

Guo, Chun; Zhou, Jiansong; Chen, Jianmin; Zhao, Jierong; Yu, You‐Jun; Zhou, Huidi

doi:10.1016/j.surfcoat.2010.08.125

Cited by 62 publications

(17 citation statements)

References 34 publications

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“…10,11 The coefficient of friction of the deposits of all other samples is lower than the one of the substrate resulting from the melted TiC particles on the surface. Titanium carbide powder was used as a reinforcement in this study.…”

Section: Wear Resistance Behaviourmentioning

confidence: 96%

The influence of scanning speed on the laser metal deposition OF Ti/TiC powders

Sobiyi¹,

Akinlabi²,

Akinlabi³

2017

Mater. tehnol.

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The paper describes experimental work performed on the laser metal deposition (LMD) of titanium carbide powders on a pure titanium substrate. The understanding the effect of LMD processing parameters is vital in controlling the properties of the final product fabricated from the LMD process. The objective of the study is to characterize the influence of the laser scanning speed of the metal deposition of titanium and titanium carbide powders on a pure titanium substrate. Microstructural results showed that the substrate is characterized by two-phase morphology; alpha and beta phases. The deposit zone microstructures showed that the grains are of continuous columnar in nature. The heat-affected zone region grain areas appear to decrease with increasing in scanning speed for different samples at different scanning speeds. The height of samples was observed to decrease with an increase in the scanning speed. The microhardness results showed that the hardness of the deposits is greater than the hardness of the substrate. Wear-resistance performance results showed that the coefficient of friction of the substrate is greater than the coefficient of friction of the deposit samples. Similarly, the wear volume loss of material of the substrate is higher than the deposits. The deposit contains titanium carbide and, as such, this powder has improved the wear resistance performance of the substrate. Keywords: titanium, lasers, metal deposition, scanning speed lanek opisuje eksperimentalno delo pri laserskem nana{anju (angl. LMD) prahu titanovega karbida na podlago iz~istega titana. Upo{tevanje u~inkov LMD procesnih parametrov je klju~no za kontrolo lastnosti kon~nega proizvoda, izdelanega z LMD postopkom. Namen {tudije je dolo~iti vpliv hitrosti skeniranja laserja na nana{anje prahu kovinskega titana in titanovega karbida na podlago iz~istega titana. Rezultati mikrostrukturne karakterizacije so pokazali, da je za podlago zna~ilna dvofazna morfologija; alfa-in beta faza. Mikrostruktura nane{ene plasti je pokazala, da so zrna obi~ajno stebraste strukture. Zrna v podro~ju toplotno vplivane cone se zmanj{ujejo z nara{~anjem hitrosti skeniranja, pri razli~nih vzorcih in razli~nih hitrostih skeniranja. Vi{ina vzorcev pri razli~nih hitrostih skeniranja, se je zmanj{evala z nara{~anjem hitrosti skeniranja. Rezultati mikrotrdote so pokazali, da je trdota nanosa ve~ja od trdote podlage. Obna{anje pri obrabi je pokazalo, da je koeficient trenja podlage ve~ji kot pa koeficient trenja nanosa. Izguba materiala zaradi obrabe je ve~ja pri podlagi kot pa pri nanosu. Nanos vsebuje titanov karbid, zato je ta prah pove~al obrabno odpornost podlage.

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Section: Wear Resistance Behaviourmentioning

confidence: 96%

The influence of scanning speed on the laser metal deposition OF Ti/TiC powders

Sobiyi¹,

Akinlabi²,

Akinlabi³

2017

Mater. tehnol.

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“…Minimum porosity was also observed in the clad. This may be due to the entrapped gas bubbles, which are due to the large fluid viscosity that is induced by material particles inside the melt pool during the laser cladding process [12]. Figure 3 also indicates the specific energy per laser scanning speed.…”

Section: Figure 3: Optical Images Of the Overall Image Of The Clads mentioning

confidence: 99%

MICROSTRUCTURE AND MECHANICAL CHARACTERISATION OF TIAL COATED ON Ti64

Masina¹,

Lengopeng²,

Pityana³

et al. 2017

SAJIE

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“…Ti-6Al-4V was commonly used in engineering, but the pure Ti which could be applied in practical applications [20][21][22][23] as well, as the Al element was contained in Ti-6Al-4V, the component of pure Ti was simpler, and the experimental process was easier to analyze. Thus, an Al/Ni composite coating was deposited on the surface of a pure Ti substrate using arc spray technology and plasma spray technology.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Oxidation Resistance of NiAl Intermetallic Formed In Situ by Thermal Spraying

Jia

Li³

et al. 2018

Coatings

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An Al/Ni composite coating was deposited on the surface of a pure Ti substrate by arc spray technology and plasma spray technology. In order to enable the in-situ reaction between the Al/Ni composite coating and the specimen, they were heated under different conditions. In addition, oxidation testing was conducted to test the oxidation-resistant property of the coating. The phase transition regulation of the coating after heating, the influence of heating at different temperatures and time on the reaction depth, and the correlated theory of the in-situ formation of the NiAl intermetallic compounds were studied and analyzed. The results showed that after the heat treatment, a ragged wave-like morphology was exhibited in the diffusion front of Al, and a small amount of the Ni in the diffusion region did not participate in the reaction. The growth of the NiAl intermetallic layer in the diffusion region of the Al/Ni/Ti specimen was obviously slower compared with the Al/Ni specimen.

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Improvement of the oxidation and wear resistance of pure Ti by laser cladding at elevated temperature

Cited by 62 publications

References 34 publications

The influence of scanning speed on the laser metal deposition OF Ti/TiC powders

The influence of scanning speed on the laser metal deposition OF Ti/TiC powders

MICROSTRUCTURE AND MECHANICAL CHARACTERISATION OF TIAL COATED ON Ti64

High-Temperature Oxidation Resistance of NiAl Intermetallic Formed In Situ by Thermal Spraying

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