A combined surface treatment of surface texturing-double glow plasma surface titanizing on AISI 316 stainless steel to combat surface damage: Comparative appraisals of corrosion resistance and wear resistance

2019 ◽  
Vol 493 ◽  
pp. 747-765 ◽  
Author(s):  
Naiming Lin ◽  
Luxia Zhang ◽  
Jiaojuan Zou ◽  
Qiang Liu ◽  
Shuo Yuan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Surface Treatment ◽  
Surface Texturing ◽  
Surface Damage ◽  
Plasma Surface ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316 ◽  
Glow Plasma

DOUBLE GLOW PLASMA SURFACE TITANIZING ON AISI 316 STAINLESS STEEL WITH IMPROVED WEAR RESISTANCE: EFFECTS OF PROCESS PARAMETERS

2019 ◽  
Vol 27 (07) ◽  
pp. 1950178
Author(s):  
YONG MA ◽  
NAIMING LIN ◽  
QIANG LIU ◽  
JIAOJUAN ZOU ◽  
XIUZHOU LIN ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Wear Rate ◽  
Process Parameters ◽  
Coating Thickness ◽  
Optimal Process ◽  
Plasma Surface ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316 ◽  
Glow Plasma

Using the double glow plasma surface alloying technique, a titanizing coating with improved wear resistance can be prepared on AISI 316 stainless steel. The purpose of this paper is to investigate process parameter effects by orthogonal array design. Four main factors, titanizing temperature, holding time, voltage difference and electrode distance, are adopted in orthogonal experiments. For each factor, four levels are set. The range analysis is used to investigate the factor and level influences on the coating thickness and specific wear rate. Meanwhile, the analysis of variance method is applied to calculate the contributions of each factor. The results indicate that temperature is most critical. In balancing the coating thickness and the wear property, the optimal process parameters are 950∘C, 3[Formula: see text]h, 200[Formula: see text]V and 18[Formula: see text]mm. Corresponding to the optimal process, the thickness and the specific wear rate of the titanizing coating are 10[Formula: see text][Formula: see text]m and 2.609E−05 mm3⋅ N−1⋅ m−1, respectively.

scholarly journals Evaluation of Heat-Treated AISI 316 Stainless Steel in Solar Furnaces to Be Used as Possible Implant Material

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 581
Author(s):  
Ioan Milosan ◽  
Monica Florescu ◽  
Daniel Cristea ◽  
Ionelia Voiculescu ◽  
Mihai Alin Pop ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Solar Energy ◽  
Heat Treatments ◽  
Solar Furnace ◽  
316 Stainless Steel ◽  
Heat Treated ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316

The appropriate selection of implant materials is very important for the long-term success of the implants. A modified composition of AISI 316 stainless steel was treated using solar energy in a vertical axis solar furnace and it was subjected to a hyper-hardening treatment at a 1050 °C austenitizing temperature with a rapid cooling in cold water followed by three variants of tempering (150, 250, and 350 °C). After the heat treatment, the samples were analyzed in terms of hardness, microstructure (performed by scanning electron microscopy), and corrosion resistance. The electrochemical measurements were performed by potentiodynamic and electrochemical impedance spectroscopy in liquids that simulate biological fluids (NaCl 0.9% and Ringer’s solution). Different corrosion behaviors according to the heat treatment type have been observed and a passivation layer has formed on some of the heat-treated samples. The samples, heat-treated by immersion quenching, exhibit a significantly improved pitting corrosion resistance. The subsequent heat treatments, like tempering at 350 °C after quenching, also promote low corrosion rates. The heat treatments performed using solar energy applied on stainless steel can lead to good corrosion behavior and can be recommended as unconventional thermal processing of biocompatible materials.

scholarly journals Surface Texturing-Plasma Nitriding Duplex Treatment for Improving Tribological Performance of AISI 316 Stainless Steel

Materials ◽  
2016 ◽  
Vol 9 (11) ◽  
pp. 875 ◽  
Author(s):  
Naiming Lin ◽  
Qiang Liu ◽  
Jiaojuan Zou ◽  
Junwen Guo ◽  
Dali Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Plasma Nitriding ◽  
Surface Texturing ◽  
Tribological Performance ◽  
316 Stainless Steel ◽  
Duplex Treatment ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316

Improvement in Wear and Corrosive Wear Resistance of Ti6Al4V Alloy by Double Glow Plasma Surface Alloying with W-Mo and W-Mo-N

2011 ◽  
Vol 675-677 ◽  
pp. 1253-1257 ◽  
Author(s):  
Chang Bin Tang ◽  
Dao Xin Liu ◽  
Fan Qiao Li ◽  
Bin Tang ◽  
Lin Qin
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Ambient Air ◽  
Corrosive Wear ◽  
Surface Alloying ◽  
Nacl Solution ◽  
Plasma Surface ◽  
Glow Plasma ◽  
Surface Modified ◽  
Plasma Surface Alloying

W-Mo and W-Mo-N surface-modified layers on Ti6Al4V alloy were obtained using a double glow plasma surface alloying technique. The morphology, microstructure, and chemical composition distribution of the modified layers were analyzed by scanning electron microscope, Xray diffraction, and glow discharge optical emission spectrometry. The hardness and toughness of the modified layers were measured using a micro-hardness tester, and dynamic repeating press equipment. The wear resistance in ambient air and the corrosive wear resistance in NaCl solution were evaluated using a ball-on-disk wear tester. The results show that W-Mo and W-Mo-N surface modified layers are composed of the alloying layers which vary in composition and phase form along the depth. A microhardness gradient was observed in the modified-surface layers. The surface hardness of the W-Mo-N and W-Mo modified layers was 25.3 and 14.2 GPa, which is seven-fold and 3.9-fold harder than the Ti6Al4V substrate, respectively. W-Mo and W-Mo-N surface-modified layers significantly improved the wear and corrosion resistance of Ti6Al4V. It seems that the wear resistance of W-Mo and W-Mo-N surface-modified layers in NaCl solution is better than that in ambient air owing to the strong lubricating effect of NaCl solution and the excellent corrosion resistance of the modified layers.

Wear Resistance of Plasma Surface Copper Infiltrated on 0Cr18Ni9 Stainless Steel

2012 ◽  
Vol 217-219 ◽  
pp. 1297-1300
Author(s):  
Jin Yong Xu ◽  
Jing Chun Zhang ◽  
Yan Tang ◽  
Feng Tang ◽  
Zhao Rong Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Comparative Test ◽  
Plasma Surface ◽  
Glow Plasma

The copper infiltrated stainless steel was formed by double glow plasma surface metallurgy technology on 0Cr18Ni9 steel. A comparative test with untreated samples was carried out. The results indicates that the friction coefficient decreases with the load increasing, and copper infiltrated stainless steel is superior to untreated samples in wear rate and wear resistance, finally makes an analysis of the reasons.

scholarly journals Electrochemical corrosion behaviour of HVOF sprayed iron-based amorphous metallic coatings on AISI 316 stainless steel in an NaCl solution

2018 ◽  
Vol 27 (3-4) ◽  
Author(s):  
S. Vignesh ◽  
K. Shanmugam ◽  
V. Balasubramanian ◽  
K. Sridhar ◽  
D. Thirumalaikumarasamy
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Corrosion Behaviour ◽  
Nacl Solution ◽  
Electrochemical Tests ◽  
316 Stainless Steel ◽  
Aisi 316 Stainless Steel ◽  
Iron Based ◽  
Aisi 316 ◽  
Amorphous Coatings

AbstractNew thermally sprayed amorphous metallic coatings have been developed recently that may provide a viable coating option for fluid handling equipment such as propellers, impellers and pumps. They possess the inherent risk of flow-dependent erosion-corrosion problems. In this investigation, iron based (Fe) amorphous coatings were deposited on AISI 316 stainless steel substrate by the high velocity oxy-fuel (HVOF) spraying process, and the coating microstructure was characterised using an optical microscope and scanning electron microscopy. The Fe-based amorphous coating consisted of an amorphous phase, an absence of dislocations, a nanocrystalline phase, less porosity and high hardness. The corrosion behaviour of the substrate and Fe-based amorphous coatings were evaluated by means of electrochemical tests in 3.5 wt.% NaCl solution. Three kinds of electrochemical tests were employed to identify the corrosion resistance of the coating and substrate. The results showed that the Fe30Cr25Mn5Mo20W10B5C3Si2 amorphous metallic coating had a superior corrosion resistance than 316 stainless steel. It was attributed to the amorphous structure and the presence of the corrosion resistant element chromium (Cr).

Prominent Achievements of Laser Surface Treatment of Martensitic Stainless Steel and Alpha-Beta 6/4 Titanium Alloy

2018 ◽  
Vol 786 ◽  
pp. 87-97 ◽  
Author(s):  
A.A. Hussein ◽  
Samar Reda Al-Sayed ◽  
Salah I. Hassab Elnaby ◽  
Adel A. Nofal ◽  
Haytham Elgazzar
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Surface Treatment ◽  
Heat Input ◽  
Surface Engineering ◽  
Martensitic Stainless Steel ◽  
Laser Surface ◽  
Laser Surface Engineering

Conventional surface treatment processes are known to suffer from several limitations. Among them are energy consumption, complex heat treatment schedules and non-controllable heat affected zones. On the other side, when a high powered laser beam is used as a source of heat for surface treatment it will obviate most of these limitations. Laser surface engineering is one of these advanced surfacing technologies that receive growing interest to improve the surface properties of metals such as hardness, wear and corrosion resistance. Such treatments may be divided into two main categories: (i) those which only involve microstructural modification e.g. laser hardening and laser melting and (ii) other processes which lead to dual changes in microstructure and surface chemistry such as laser alloying and laser cladding. This paper comprises the experimental findings of two significant examples for laser surface engineering. The first study is concerned with surface hardening of AISI 416 martensitic stainless steel whereas the second study involves laser surface cladding of Ti-6Al-4V alloy. The outcome of the first work is a notable improvement of toughness at the same level of hardness and wear resistance as compared to the conventional hardening treatment. Additionally, the optimum condition for combined wear resistance, impact toughness and corrosion resistance was recorded at a laser heat input value of 21 J•mm-2. The second study is concerned with laser surface cladding of the titanium alloy with a powder blend composed of 60 wt% of WC and 40 wt% NiCrBSi alloy, by means of a high power Nd:YAG 2.2 kW laser. The best clad layers were obtained at a specific heat input of 60 J•mm-2. More than three-fold enhancement of the microhardness of the clad layers was achieved combined with a remarkable improvement of the alloy wear resistance.

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