Abstract
The present work investigates the influence of process parameters for laser surface alloying with molybdenum on Nickel Titanium, which is extensively used in medical devices industries. A systematic study of process parameters such as laser power, scanning velocity and pre-paste thickness upon the Mo concentration was carried out. Analysis of variance (ANOVA) was used to understand the significance of the process variables affecting the process factors. A functional relationship between the melt profile, structure and micro hardness was identified after a detailed analysis of the variables involved. Laser power and scan speed are found to be most significant process parameters influencing the melt depth. The weight % of Mo and of Ni are directly and inversely proportional to the dilution ratio (DR) respectively. A favorable hardness value can be achieved by an attainable Mo content. With a set of optimal parameters, Mo alloyed layer with hardness three times the substrate NiTi was achieved.
| Original language | English |
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| Title of host publication | 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings |
| Publication status | Published - 1 Dec 2007 |
| Event | 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Orlando, FL, United States Duration: 29 Oct 2007 → 1 Nov 2007 |
Conference
| Conference | 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 |
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| Country/Territory | United States |
| City | Orlando, FL |
| Period | 29/10/07 → 1/11/07 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials