Journal ArticleDOI
Enhancing the microstructure and properties of titanium alloys through nitriding and other surface engineering methods
Reads0
Chats0
TLDR
In this article, the effects of nitriding on the micro-hardness and the corrosion resistance of titanium and titanium alloys are analyzed in relation to the potential for applying these alloys to different industries.Abstract:
Over the last 40 years, the commercial production of titanium and its alloys has increased steadily. Whilst these materials have some very attractive properties, enabling applications in many industries, they are seldom used in mechanical engineering applications because of their poor tribological properties. This paper starts with an introduction to the titanium material and a review of the different types of surface treatment. The processes of nitriding, oxidation and carburizing are among the most popular thermochemical treatments aiming at improving the surface properties of Ti-alloys. Different kinds of nitriding are investigated like plasma nitriding, ion nitriding, and laser and gas nitriding. The kinetics of nitriding and the conditions for the formation of nitrided layers are studied. The influence of the main processing parameters such as temperature, time on the microstructure and the formation of new phases during the processes of nitriding is discussed. Also based on investigations presented in the literature, the effects of nitriding on the microhardness and the corrosion resistance of titanium and titanium alloys are analyzed. The improved mechanical properties, which arise from these thermochemical treatments, are discussed in relation to the potential for applying these alloys to different industries.read more
Citations
More filters
Journal ArticleDOI
Functionally graded materials: A review of fabrication and properties
TL;DR: The state of the art in materials selection, fabrication, characterization, analysis and modelling of functionally graded materials is presented with a particular emphasis on identifying fundamental structure-property relationships as discussed by the authors.
Journal ArticleDOI
A Review on Functionally Graded Materials and Structures via Additive Manufacturing: From Multi-Scale Design to Versatile Functional Properties
Yan Li,Zuying Feng,Liang Hao,Lijing Huang,Chenxing Xin,Yushen Wang,Emiliano Bilotti,Khamis Essa,Han Zhang,Li Zheng,Feifei Yan,Ton Peijs +11 more
Journal ArticleDOI
Tribological behaviour of Ti6Al4V and Inconel718 under dry and cryogenic conditions—Application to the context of machining with carbide tools
TL;DR: In this article, the authors investigated the cooling and/or lubrication capabilities of a nitrogen jet under extreme contact conditions using a dedicated tribometer and provided quantitative data regarding friction coefficient under dry and cryogenic conditions that can be implemented in numerical cutting models.
Journal ArticleDOI
Tribological, electrochemical and tribo-electrochemical characterization of bare and nitrided Ti6Al4V in simulated body fluid solution.
Taíse Matte Manhabosco,Silvia Margonei Mesquita Tamborim,C. B. dos Santos,Iduvirges Lourdes Muller +3 more
TL;DR: In this article, the anticorrosive properties of nitrided Ti6Al4V in phosphate buffer saline solution (PBS), simulating the body environment, were evaluated by Electrochemical Impedance Spectroscopy (EIS).
Journal ArticleDOI
Characteristics and wear performance of borided Ti6Al4V alloy
TL;DR: In this article, a 10µm uniform boride layer, composed of TiB 2 and TiB phases, was formed on the surface of a Ti6Al4V alloy using a pack boriding technique.
References
More filters
Journal ArticleDOI
Plasma electrolysis for surface engineering
TL;DR: The physical and chemical fundamentals of plasma electrolysis are discussed in this article, and the equipment and deposition procedures for coating production are described, and the effects of electrolyte composition and temperature on ignition voltage, discharge intensity and deposited layer thickness and composition are outlined.
Book
Materials Properties Handbook: Titanium Alloys
TL;DR: The Materials Properties Handbook: Titanium Alloys as discussed by the authors provides a data base for information on titanium and its alloys, and the selection of specific alloys for specific applications, including applications, physical properties, corrosion, mechanical properties (including design allowances where available), fatigue, fracture properties, and elevated temperature properties.
Book
Structure and properties of engineering alloys
TL;DR: In this article, surface hardening and modification of metals is discussed. And the authors propose a surface hardness and modification approach for surface hardness in the context of metamachines.