Implantation of Metal Ions into High Speed Steel for Improved Tribology

1994 ◽  
Vol 354 ◽  
Author(s):  
D.M. Ruck ◽  
J.-P. Hirvonen ◽  
S. Yan ◽  
R. Lappalainen ◽  
P. Torrfi
Keyword(s):  
Ion Implantation ◽  
Metal Ion ◽  
High Speed ◽  
High Speed Steel ◽  
Corrosive Wear ◽  
Dry Sliding ◽  
Steel Matrix ◽  
Tribological Behaviour ◽  
Martensitic Microstructure ◽  
Pin On Disc

AbstractHigh speed steel with a martensitic microstructure is widely used in tool industry, but often the usage is limited by severe abrasive and corrosive wear. Metal ion implantation is a promising method to improve the tribological behaviour of this steel, as was shown in several publications. In this paper we discuss the application V and Cr implanted high speed steel, both of these elements are alloying constituents of the steel matrix. Combined with implantation of carbon is also carried out.The tribological tests were performed with a pin-on-disc machine under dry sliding conditions. The obtained tribological results are discussed in relation to the microstructures of the nonimplanted and implanted samples.

Ion Implantation into High-Speed Steel for Improved Tribology

1993 ◽  
Vol 316 ◽  
Author(s):  
J-P. Hirvonen ◽  
D. Rück ◽  
S. Yan ◽  
R. Lappalainen ◽  
P. Torri
Keyword(s):  
Ion Implantation ◽  
High Speed ◽  
Critical Parameter ◽  
High Speed Steel ◽  
Dry Sliding ◽  
Nitrogen Ion Implantation ◽  
Mechanical And Tribological Properties ◽  
Martensitic Microstructure ◽  
Nitrogen Ion ◽  
Thermal Stability Of

ABSTRACTIon implantation into steels with a martensitic microstracture is reviewed and discussed in terms of different implanted species and observed changes in the structure. Both single ion and dual ion implantation treatment are included. The disability of the nitrogen ion implantation to improve the tribological characteristics of steels with a martensitic microstructure can be overcome by dual implantation of titanium and carbon, for example. Results of tribological tests on samples in which titanium is replaced by chromium are more controversial, although changes in the sliding characteristics were observed. Dry sliding on the samples implanted up to 1018 ions/cm2 is totally different by nature and -based on the reported results- associated with the formation of carbon precipitates on the surface. The thermal stability of implanted nitrogen and carbon in MЗ high-speed steel was examined and nitrogen was shown to be less stable than carbon. Mechanical and tribological properties were further changed by heat treatment after ion implantation, which indicates that temperature is also a critical parameter during ion implantation.

scholarly journals Investigation of the Temperature-Related Wear Performance of Hard Nanostructured Coatings Deposited on a S600 High Speed Steel

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 332 ◽  
Author(s):  
Eleonora Santecchia ◽  
Marcello Cabibbo ◽  
Abdel Hamouda ◽  
Farayi Musharavati ◽  
Anton Popelka ◽  
...  
Keyword(s):  
Physical Vapor Deposition ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Hard Coatings ◽  
Wear Performance ◽  
Metal Machining ◽  
Pin On Disc ◽  
The Coefficient Of Friction ◽  
Orthopedic Prosthesis

Thin hard coatings are widely known as key elements in many industrial fields, from equipment for metal machining to dental implants and orthopedic prosthesis. When it comes to machining and cutting tools, thin hard coatings are crucial for decreasing the coefficient of friction (COF) and for protecting tools against oxidation. The aim of this work was to evaluate the tribological performance of two commercially available thin hard coatings deposited by physical vapor deposition (PVD) on a high speed tool steel (S600) under extreme working conditions. For this purpose, pin-on-disc wear tests were carried out either at room temperature (293 K) or at high temperature (873 K) against alumina (Al2O3) balls. Two thin hard nitrogen-rich coatings were considered: a multilayer AlTiCrN and a superlattice (nanolayered) CrN/NbN. The surface and microstructure characterization were performed by optical profilometry, field-emission gun scanning electron microscopy (FEGSEM), and energy dispersive spectroscopy (EDS).

A simulation of wear behaviour of high-speed steel hot rolls by means of high temperature pin-on-disc tests

Wear ◽  
2013 ◽  
Vol 302 (1-2) ◽  
pp. 1310-1318 ◽  
Author(s):  
Hongtao Zhu ◽  
Qiang Zhu ◽  
Anh Kiet Tieu ◽  
Buyung Kosasih ◽  
Charlie Kong
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
Wear Behaviour ◽  
Pin On Disc

An Overview of the Microstructures Present in High-Speed Steel -Carbides Crystallography

2006 ◽  
Vol 530-531 ◽  
pp. 48-52 ◽  
Author(s):  
M.M. Serna ◽  
Edilson Rosa Barbarosa Jesus ◽  
E. Galego ◽  
Luís Gallego Martinez ◽  
H.P.S. Corrêa ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Chemical Composition ◽  
First Principles ◽  
High Speed ◽  
High Speed Steel ◽  
High Hardness ◽  
Spray Forming ◽  
Steel Matrix ◽  
X Ray Diffraction ◽  
X Ray

The aim of the work was to prepare an overview about the microstructures present in high-speed steel, focused on the crystallography of the carbides. High-speed steels are currently obtained by casting, powder metallurgy and more recently spray forming. High-speed steels have a high hardness resulting from a microstructure, which consists of a steel matrix (martensite and ferrite), in which embedded carbides of different crystal structure, chemical composition, morphology and size, exist. These carbides are commonly named MxC, where M represents one or more metallic atoms. These carbides can be identified by X-ray diffraction considering M as a unique metallic atom. In this work, it is discussed, in basis of the first principles of physics crystallography, the validation of this identification when it is considered that other atoms in the structure are substitutional. Further, it is discussed some requirements for data acquisition that allows the Rietveld refinement to be applied on carbide crystallography and phase amount determination.

Study of Dry Sliding Friction and Wear Characteristic of High-Speed Steel/ Ti6Al4V Alloy under Direct Steady Magnetic Field

2011 ◽  
Vol 50-51 ◽  
pp. 348-352
Author(s):  
Yong Hui Wei ◽  
Yong Zhen Zhang ◽  
Yue Chen
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Friction And Wear ◽  
Sliding Friction ◽  
Friction Pair ◽  
High Speed Steel ◽  
Wear Loss ◽  
Dry Sliding ◽  
Steady Magnetic Field ◽  
Dry Sliding Friction

The influence of DC steady magnetic field on dry-sliding friction and wear characteristics of friction pair of high-speed steel (HSS) ring / Ti6Al4V pin is studied by use of improved MPV-1500 type under normal temperature. It is shown that the wear loss of ferromagnetic materials can be decreased by applying a steady magnetic field. Under the load of 250N and the friction velocity of 0.6m/s, the wear loss of the sample HSS ring keeps decreasing along with the enhancement of magnetic field intensity, and in the scope of 64mT-160mT, the average friction coefficient becomes smaller and smaller. Magnetic field can accelerate debris refinement. The wear mechanism covers oxidative wear and adhesive wear mainly.

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