Manufacture and repair of propeller shafts and rotating parts using plasma technology

Gorbach, V D; Bochkarev, V. P.; Nazaruk, V K

doi:10.1080/09507110009549142

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plasma transfer arc welding (PTAW) is one of the repairing techniques which is being used to increase the service life of machine components of various industries by precise deposition of metal powders over the damaged component. The restoration of worn-out areas of gas turbine blades, the repair of propeller shaft, and cracks in nozzle set of helicopter engine, etc., are few examples of repair of critical components by PTAW process [1][2][3]. The PTAW process are also being used as an effective tool for additive manufacturing [4].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation and Analysis of PTAW Process

Mandal

Kumar

Bhargava

et al. 2014

Materials and Manufacturing Processes

View full text Add to dashboard Cite

Experiments are conducted to deposit SS304 L powders on SS316 plates by plasma transfer arc welding process with varying four input process parameters, namely scanning speed, powder feed rate, stand-off distance, and current. The effects of these four input process parameters on deposition geometry, dilution, and bead continuity are investigated in this study. Attempts have been made to explain the experimental results with only two compound parameters, ''energy deposition per length'' and ''powder deposition per length'' instead of four independent input process parameters. It is observed that the variation of dilution is very little when the scanning speed increases from 100 to 600 mm/min and other process parameters remain constant. When the powder feed rate increases and other parameters remain constant, initially the dilution decreases rapidly and attains a minimum value which do not change further with increase in powder feed rate. It is also observed that the dilution remains almost constant around 6-9% as the stand-off distance changes from 7 to 11 mm and other process parameters remain constant. The formation of nonuniform bead is found to be due to insufficient energy deposition per length per mass of supplied powder.

show abstract

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation and Analysis of PTAW Process

Mandal

Kumar

Bhargava

et al. 2014

Materials and Manufacturing Processes

View full text Add to dashboard Cite

show abstract

“…In order to overcome a series of problems caused by paint coatings, improve the service life of low carbon steel and reduce the manufacturing cost, many metal coating and composite coating technologies have been developed on the surface of low carbon steel hull and parts. Commonly used high-efficiency protection methods for low carbon steel include electroplating, thermal spraying, laser cladding and plasma cladding [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Contents of WC on Microstructure and Properties of NiCrMo Coatings Prepared by PTA

et al. 2022

View full text Add to dashboard Cite

During the service process of the mechanized fishing boat, its low carbon steel hull and parts are extremely susceptible to Cl− erosion and seawater scouring, which cause a decrease in strength and lead to failure. To increase its service life and reduce maintenance costs, coating protection technology is widely used. In order to solve the problem of poor adhesion between paint coating and substrate and low strength of metal coating, NiCrMo-WC coatings with different WC contents (0 wt.%, 5 wt.%, 10 wt.%, 15 wt.%, 20 wt.%) were prepared on the surface of Q235 substrate by plasma cladding technology. The coatings were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy spectrum analysis (EDS), etc. Its phase formation rule, microstructure and element distribution were studied. Microhardness test and electrochemical corrosion test were carried out. The study found that the 20 WC coating has the highest average hardness (563.1 HV). It is about 3.25 times of the Q235 substrate. It has the lowest friction, wear rate and lower friction coefficient, showing the best wear resistance. The 15 WC coating has the lowest self-corrosion current density (3.4934 × 10−7 A/cm2) and the lowest corrosion rate (0.0041 mm/a), which is only 3.7% of the corrosion rate of Q235 steel.

show abstract

“…PTA is one of the most used technologies for low carbon steel owning to high production efficiency, simple equipment, high performance and low dilution rate of covering layers [ 6 , 7 , 8 , 9 ]. Nowadays, coating powders with excellent wear and corrosion resistance, such as Fe-based, Ni-based and Co-based powders, are widely used in the protection of hulls and parts of mechanized boats [ 10 , 11 , 12 , 13 , 14 , 15 ]. Co-based alloys with high cost are mostly used for expensive industrial components.…”

Section: Introductionmentioning

confidence: 99%

Influence of Mo on Ni-15Cr Cladding Layers via Plasma Transferred Arc

et al. 2022

View full text Add to dashboard Cite

The composite Ni-Cr-Mo covering layers with excellent corrosion and wear resistance are deposited by plasma transferred arc (PTA), which can improve the service life of ships and solve the corrosion and wear problems of mechanized boats. The effects of Mo on the microstructure, hardness and corrosion resistance of covering layers were analyzed by OM, SEM, XRD, EDS, a micro hardness test, a friction test and a corrosion-resistance test. The results show that the structure of covering layers change and the austenite precipitates become granular with an increase of Mo content. In addition, the corrosion and wear resistance of covering layers are improved and the sample with 5% content of Mo has the best wear and corrosion resistance.

show abstract

Manufacture and repair of propeller shafts and rotating parts using plasma technology

Cited by 3 publications

References 0 publications

An Experimental Investigation and Analysis of PTAW Process

An Experimental Investigation and Analysis of PTAW Process

Effect of Different Contents of WC on Microstructure and Properties of NiCrMo Coatings Prepared by PTA

Influence of Mo on Ni-15Cr Cladding Layers via Plasma Transferred Arc

Contact Info

Product

Resources

About