Direct laser cladding of Co on Ti–6Al–4V with a compositionally graded interface

Majumdar, Jyotsna Dutta; Manna, I.; Kumar, Abhimanyu; Bhargava, Pankaj; Nath, Ashish Kumar

doi:10.1016/j.jmatprotec.2008.05.017

Cited by 73 publications

(22 citation statements)

References 15 publications

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“…The results showed that the microhardness was gradually decreased from the coating to the substrate due to the gradient distribution in microstructure. The similar results were also obtained by many researches [18][19][20]. Present studies mainly paid close attention to the effect of the gradient distribution in microstructure on the mirohardness.…”

Section: Introductionsupporting

confidence: 86%

Microstructural evolution and wear behaviors of laser cladding Ti 2 Ni/α(Ti) dual-phase coating reinforced by TiB and TiC

Sheng

Shao

et al. 2015

Applied Surface Science

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Section: Introductionsupporting

confidence: 86%

Microstructural evolution and wear behaviors of laser cladding Ti 2 Ni/α(Ti) dual-phase coating reinforced by TiB and TiC

Sheng

Shao

et al. 2015

Applied Surface Science

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“…The formation of intermetallic compounds in situ is another approach for improving the surface properties of titanium. Three alloying elements are especially important: cobalt, 16,17 nickel, 18 and niobium. 19 Cobalt reacts during laser processing to form TiCo/ Ti 2 Co, and this substance hardens the matrix by precipitation.…”

Section: B Bioinert Hard Coatingsmentioning

confidence: 99%

“…However, corrosion tests show that cobalt may worsen the behavior when faced with holes, and the results are inconclusive. 17 Nickel alloy can form compounds of TiNi/ Ti 2 Ni with exceptional properties. TiNi is one of these compounds and is known for its toughness, elasticity, and a shape memory that can accommodate deformations in joints due to impact loads.…”

Section: B Bioinert Hard Coatingsmentioning

confidence: 99%

Recent advances in laser surface treatment of titanium alloys

Candel¹,

Amigó²

2011

Journal of Laser Applications

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This paper reviews progress over the last five years in the field of laser surface modification of titanium alloys. The authors analyze the effect of new laser technologies and new materials as tools for improving surface properties-specifically, biocompatibility and resistance to wear, corrosion, and high temperatures. The authors discuss the effect of laser processing parameters on the microstructure and compare the results obtained by various researchers. Therefore, an overview of the difficulties involved in the laser processing of titanium is provided with a discussion of future prospects.

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“…1 The intermetallic-matrix composites (IMCs) with ceramic particles are also found to possess higher specific strength, improved toughness, and high-temperature strength retention. 6,7 A lot of studies have been conducted in the literature on intermetallic compound reinforced ceramic composite as a result of the improved properties they offer. [8][9][10] In this work, a composite of TiC/Ti6Al4V was produced and Ti 3 Al was formed in-situ.…”

Section: Introductionmentioning

confidence: 99%

Influence of scanning speed on the intermetallic produced in-situ in laser-metal-deposited TiC/Ti6Al4V composite

Mahamood¹,

Akinlabi²

2017

Mater. Tehnol.

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The effect of scanning speed on titanium aluminide Ti3Al produced in-situ during laser metal deposited TiC/Ti6Al4V has been investigated and its effect on the microhardness and wear-resistance properties has been studied. In this study, the titanium alloy Ti6Al4V (an important aerospace alloy) was deposited in combination with titanium carbide TiC using a laser metal deposition process. The laser power was maintained at 3.2 kW throughout the deposition process. The powder flow rate and the gas flow rate were also kept at constant values of 2.88 g/min and 2 l/min, respectively. The scanning speed was varied between 0.015 and 0.105 m/s, and the influence of the scanning speed on the titanium aluminide (Ti3Al) produced in-situ was studied, and its effect on the wear resistance behaviour was also investigated. The study revealed that as the scanning speed was initially increased, the Ti3Al produced in-situ was found to increase and the wear resistance was found to improve. As the scanning speed was further increased beyond 0.06 m/s, the Ti3Al produced and the wear resistance were found to decrease. Keywords: laser metal deposition process, microhardness, microstructure, titanium alloy, Ti 3 Al, wear resistance Preiskovan je bil vpliv hitrosti skeniranja na in-situ nastanek titanovega aluminida -Ti3Al, izdelanega med lasersko depozicijo TiC/Ti6Al4V ter prou~evan je bil njen vpliv na mikrotrdoto in obrabne lastnosti. V tej {tudiji je bila titanova zlitina -Ti6Al4V (pomembna zlitina za letalstvo), nane{ena v kombinaciji s titanovim karbidom -TiC, s pomo~jo postopka laserskega nana{anja. Med postopkom nana{anja je bila vzdr`evana mo~laserja pri 3,2 kW. Hitrosti toka prahu in toka plina sta bili zadr`ani pri konstantnih vrednostih 2,88 g/min in 2 l/min. Hitrost skeniranja se je spreminjala med 0,015 in 0,105 m/s. [tudiran je bil vpliv hitrosti skeniranja na in-situ nastanek titanovega aluminide (Ti3Al) ter njen vpliv na obna{anje pri obrabi. [tudija je odkrila, da je za~etno pove~anje hitrosti skeniranja pove~alo in-situ nastajanje Ti3Al, pove~ala se je tudi odpornost proti obrabi. Pri nadaljnjem pove~evanju hitrosti skeniranja nad 0,06 m/s, je bilo ugotovljeno zmanj{anje nastajanja Ti3Al in zmanj{anje odpornosti proti obrabi. Klju~ne besede: postopek nana{anja kovine z laserjem, mikrotrdota, mikrostruktura, titanova zlitina, Ti3Al, odpornost proti obrabi

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Direct laser cladding of Co on Ti–6Al–4V with a compositionally graded interface

Cited by 73 publications

References 15 publications

Microstructural evolution and wear behaviors of laser cladding Ti 2 Ni/α(Ti) dual-phase coating reinforced by TiB and TiC

Microstructural evolution and wear behaviors of laser cladding Ti 2 Ni/α(Ti) dual-phase coating reinforced by TiB and TiC

Recent advances in laser surface treatment of titanium alloys

Influence of scanning speed on the intermetallic produced in-situ in laser-metal-deposited TiC/Ti6Al4V composite

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