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.

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.

Effects of nitrogen ion implantation on the thermal stability of tungsten thin films

1998 ◽  
Vol 16 (2) ◽  
pp. 477-481 ◽  
Author(s):  
Yong Tae Kim ◽  
Chul Soon Kwon ◽  
Dong Joon Kim ◽  
Jong-Wan Park ◽  
Chang Woo Lee
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Ion Implantation ◽  
Nitrogen Ion Implantation ◽  
Nitrogen Ion ◽  
Thermal Stability Of

scholarly journals Oxidation resistance and thermal stability of a β-solidified γ-TiAl based alloy after nitrogen ion implantation

2020 ◽  
Vol 177 ◽  
pp. 109003
Author(s):  
D.O. Panov ◽  
V.S. Sokolovsky ◽  
N.D. Stepanov ◽  
S.V. Zherebtsov ◽  
P.V. Panin ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ion Implantation ◽  
Oxidation Resistance ◽  
Nitrogen Ion Implantation ◽  
Nitrogen Ion ◽  
Thermal Stability Of

Silicide Contacts for Sub-0.25 μm Devices

1999 ◽  
Vol 564 ◽  
Author(s):  
L. J. Chen ◽  
S. L. Cheng ◽  
S. M. Chang ◽  
Y. C. Peng ◽  
H. Y. Huang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Ion Implantation ◽  
Epitaxial Growth ◽  
Silicon Layer ◽  
Metal Contacts ◽  
Nitrogen Ion Implantation ◽  
Selective Epitaxial Growth ◽  
Nitrogen Ion ◽  
Thermal Stability Of

AbstractLow resistivity TiSi2, CoSi2 and NiSi are the three primary candidates for metal contacts in sub-0.25 μ m devices. In the present paper, we review recent progress in the investigations of lowresistivity contacts, which include enhanced formation of C54-TiSi2 on (001)Si by tensile stress, high temperature sputtering, and interposing Mo or TiN layer, improved thermal stability of C54-TiSi2 by the addition of N2 during Ti sputtering or N implantation in (001)Si, self-aligned formation of CoSi2 on the selective epitaxial growth silicon layer on (001)Si, effects of stress on the epitaxial growth of CoSi2 on (001 )Si, improvement of thermal stability of CoSi2 by nitrogen ion implantation or high temperature sputtering, and improvement of thermal stability of NiSi by nitrogen ion implantation or compressive stress.

scholarly journals Effect of Nitrogen Ion Implantation on the Cavitation Erosion Resistance and Cobalt-Based Solid Solution Phase Transformations of HIPed Stellite 6

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2324
Author(s):  
Mirosław Szala ◽  
Dariusz Chocyk ◽  
Anna Skic ◽  
Mariusz Kamiński ◽  
Wojciech Macek ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Ion Implantation ◽  
Phase Transformations ◽  
Erosion Rate ◽  
Cavitation Erosion ◽  
Matrix Phase ◽  
Nitrogen Ion Implantation ◽  
Stellite 6 ◽  
Nitrogen Ion

From the wide range of engineering materials traditional Stellite 6 (cobalt alloy) exhibits excellent resistance to cavitation erosion (CE). Nonetheless, the influence of ion implantation of cobalt alloys on the CE behaviour has not been completely clarified by the literature. Thus, this work investigates the effect of nitrogen ion implantation (NII) of HIPed Stellite 6 on the improvement of resistance to CE. Finally, the cobalt-rich matrix phase transformations due to both NII and cavitation load were studied. The CE resistance of stellites ion-implanted by 120 keV N+ ions two fluences: 5 × 1016 cm−2 and 1 × 1017 cm−2 were comparatively analysed with the unimplanted stellite and AISI 304 stainless steel. CE tests were conducted according to ASTM G32 with stationary specimen method. Erosion rate curves and mean depth of erosion confirm that the nitrogen-implanted HIPed Stellite 6 two times exceeds the resistance to CE than unimplanted stellite, and has almost ten times higher CE reference than stainless steel. The X-ray diffraction (XRD) confirms that NII of HIPed Stellite 6 favours transformation of the ε(hcp) to γ(fcc) structure. Unimplanted stellite ε-rich matrix is less prone to plastic deformation than γ and consequently, increase of γ phase effectively holds carbides in cobalt matrix and prevents Cr7C3 debonding. This phenomenon elongates three times the CE incubation stage, slows erosion rate and mitigates the material loss. Metastable γ structure formed by ion implantation consumes the cavitation load for work-hardening and γ → ε martensitic transformation. In further CE stages, phases transform as for unimplanted alloy namely, the cavitation-inducted recovery process, removal of strain, dislocations resulting in increase of γ phase. The CE mechanism was investigated using a surface profilometer, atomic force microscopy, SEM-EDS and XRD. HIPed Stellite 6 wear behaviour relies on the plastic deformation of cobalt matrix, starting at Cr7C3/matrix interfaces. Once the Cr7C3 particles lose from the matrix restrain, they debond from matrix and are removed from the material. Carbides detachment creates cavitation pits which initiate cracks propagation through cobalt matrix, that leads to loss of matrix phase and as a result the CE proceeds with a detachment of massive chunk of materials.

Corrosion resistance and magnetostrictive properties of (Tb0.3Dy0.7)Fe2 alloy modified by nitrogen ion implantation

2015 ◽  
Vol 33 (6) ◽  
pp. 629-632 ◽  
Author(s):  
Hongchuan YANG ◽  
Shirong ZHANG ◽  
Dunbo YU ◽  
Kuoshe LI ◽  
Quanxia HU ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Ion Implantation ◽  
Nitrogen Ion Implantation ◽  
Nitrogen Ion

Novel chromium layers formed by nitrogen-ion implantation of conventional and ABCD electrodeposited films, part 4

1990 ◽  
Vol 16 (1-12) ◽  
pp. 488-492 ◽  
Author(s):  
Hermann Ferber ◽  
Gar B. Hoflund ◽  
Charles K. Mount ◽  
Shigeo Hoshino
Keyword(s):  
Ion Implantation ◽  
Nitrogen Ion Implantation ◽  
Nitrogen Ion
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