Corrosion Resistance of TiN Imitation Gold Decoration Coatings on Golden-Pen Components

2012 ◽  
Vol 501 ◽  
pp. 355-359
Author(s):  
Jun Ying Hou ◽  
Zhi Wei Zhou
Keyword(s):  
Corrosion Resistance ◽  
Process Parameters ◽  
High Hardness ◽  
Optimum Process ◽  
Gold Plating ◽  
Surface Corrosion ◽  
Chromium Plating ◽  
Tin Coatings ◽  
Plating Method ◽  
Multi Phase

Experiments were carried out with different process parameters to investigate the effects of used parameters on corrosion resistance of TiN coatings obtained. In experiments, TiN imitation gold decoration coatings were prepared on 1Cr13 pen-point and brass chromium plating pen-coil by multi-arc ion plating method. The phase composition of TiN coatings was measured by x-ray diffraction. The corrosion resistance of TiN coatings was tested by salt-mist and artificial-sweat experiments. The relationship between corrosion resistance of coatings and process parameters were analyzed. Therefore, the optimum process parameters were achieved suitable for plating coatings on substrates of 1Cr13 pen-point and brass chromium plating pen-coil with good imitation gold. Imitation gold plating layers obtained have good gloss, corrosion resistance, high hardness, wear resistance, and easy to maintain. The results showed that the corrosion resistance of coatings is more easily influenced by changes of PN2 and Vbom than that of matrix-bias voltage. The TiN coatings are of resistant to corrosion no matter they are in single or multi phase structure. The optimum parameters of achieving good corrosion resistance of TiN coatings are PN2=0.48Pa, Vbom=400V，bias=-20V. Under the optimum conditions, the obtained surface corrosion resistance state of the coatings can reach at least eight grades, even above ten grades.

Influence on Rare Earth Re3+ by the Performance of Composite Brush Plating of Ni-P

2014 ◽  
Vol 940 ◽  
pp. 7-10
Author(s):  
Zhong Bao Jiang ◽  
Yu Feng Zhang ◽  
Shao Li Duan ◽  
Shou Liang Cao
Keyword(s):  
Corrosion Resistance ◽  
Rare Earth ◽  
Sodium Citrate ◽  
High Hardness ◽  
Abrasive Resistance ◽  
Binding Force ◽  
Plating Method ◽  
Low Phosphorus ◽  
Brush Plating ◽  
Plating Layer

Using the sodium citrate as ligands and adopting electric brush plating method, Re will be deposited together with Ni-P from the solution, and a complex brush plating of Ni-P-Re can be attained. It is discussed the effect of the rare earth Re3+ on the deposition rate, corrosion resistance and bonding strength of the Ni-P composite brush plating. Adding some appropriate Re3+ to the brush plating solution, the amorphous tissue can be obtained under the condition of the low phosphorus brush plating, which make the brush plating layer with high hardness and high abrasive resistance at the same time, binding force and corrosion resistance are improved, and greatly improve the performance of the brush plating.

scholarly journals Features of Ni-W Plating Film Obtained by the Jet-Flow System

AppliedChem ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 41-49
Author(s):  
Yuka Tsuruta ◽  
Yasushi Umeda ◽  
Hideo Honma ◽  
Osamu Takai ◽  
Katsuhiko Tashiro
Keyword(s):  
Corrosion Resistance ◽  
Current Density ◽  
Flow System ◽  
High Current Density ◽  
Jet Flow ◽  
High Corrosion Resistance ◽  
High Corrosion ◽  
Chromium Plating ◽  
Excellent Corrosion Resistance ◽  
Plating Method

Chromium plating has excellent corrosion resistance and is widely used in industry. However, it also has a high environmental load. As an alternative, electric Ni-W plating is attracting attention. However, it is not widely used because the stress is high and the film is prone to cracks. Furthermore, although it is necessary to thicken the film to improve the corrosion resistance, there are also problems that the current efficiency is low and the plating time is long. Therefore, we investigate a film with high corrosion resistance by using the jet-flow plating method that enables plating at a high current density. Our results show that the jet-flow plating enables plating of 50 µm, and high corrosion resistance is obtained by randomly generating fine cracks in the film at 20 A·dm−2. We also found that the stress changed depending on the current density and shape of the crack also changed.

scholarly journals An Investigation of Surface Corrosion Behavior of Inconel 718 after Robotic Belt Grinding

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2440 ◽  
Author(s):  
Junwei Wang ◽  
Jijin Xu ◽  
Xiaoqiang Zhang ◽  
Xukai Ren ◽  
Xuefeng Song ◽  
...  
Keyword(s):  
Residual Stress ◽  
Surface Roughness ◽  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Process Parameters ◽  
Inconel 718 ◽  
Dissolution Behavior ◽  
Belt Grinding ◽  
Surface Corrosion ◽  
Robotic Belt Grinding

Surface corrosion resistance of nickel-based superalloys after grinding is an important consideration to ensure the service performance. In this work, robotic belt grinding is adopted because it offers controllable material processing by dynamically controlling process parameters and tool-workpiece contact state. Surface corrosion behavior of Inconel 718 after robotic belt grinding was investigated by electrochemical testing in 3.5 wt % NaCl solution at room temperature. Specimens were characterized by morphology, surface roughness and residual stress systematically. The potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) analysis indicate the corrosion resistance of the specimen surface improves remarkably with the decrease of abrasive particle size. It can be attributed to the change of surface roughness and residual stress. The energy dispersive X-ray spectroscopy (EDS) indicates that niobium (Nb) is preferentially attacked in the corrosion process. A plausible electrochemical dissolution behavior for Inconel 718 processed by robotic belt grinding is proposed. This study is of significance for achieving desired corrosion property of work surface by optimizing grinding process parameters.

scholarly journals Taguchi Optimization of Fracture Toughness of Silicon Carbide Extracted From Agricultural Wastes

2021 ◽  
Author(s):  
Amit Kumar Thakur ◽  
Ajay Kumar Kaviti ◽  
Mohd Tariq Siddiqi ◽  
J. Ronald Aseer ◽  
Rajesh Singh ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Silicon Carbide ◽  
Process Parameters ◽  
Heating Temperature ◽  
Optimization Technique ◽  
High Hardness ◽  
Agricultural Wastes ◽  
Optimum Process ◽  
Sintering Process ◽  
Taguchi Optimization

Abstract In India, agricultural wastes such as palm ash and rice husk, which are abundant which have a high potential for usage as usable renewable energy and silica. Silicon carbide (SiC) is utilized for various applications due to its high hardness, compressive strength, and good wear resistance. In this work, a cleaner and green methodology was adopted to produce SiC from various agricultural wastes like peanut shells, rice husks, sugar cane extracts, and corn cob. Pyrolysis experiments were carried out by varying parameters such as heating temperature (600 to 800 0C), heating time (160 to 180 min), and quantity of waste (450 to 550 g) to convert agricultural wastes into powder SiC. X-ray diffraction, Raman, Fourier transform infrared spectroscopy and Scanning electron microscope confirms the formation of SiC phase in SiC. The sintering process parameters such as heating rate (5 to 150C/min), cooling rate (5 to 150C/min), and pressure (60 to 80 MPa) were selected for finding fracture toughness of sintered SiC. The process parameters for the pyrolysis and sintering process were optimized by the Taguchi optimization technique. Confirmations tests were conducted with optimum process parameters and the results indicated that confirmations results are correlated with predicted results.

Application of Taguchi Method for Determining Optimum Process Parameters of PMEDM with SiC Powder Suspended in Dielectric

2013 ◽  
Vol 1 (3) ◽  
pp. 37-42
Author(s):  
Deepak Rajendra Unune ◽  
◽  
Amit Aherwar ◽  
B.P. Pathri ◽  
Jai Kishan ◽  
...  
Keyword(s):  
Taguchi Method ◽  
Process Parameters ◽  
Optimum Process

REYNOLDS 390 and A390

Alloy Digest ◽  
1971 ◽  
Vol 20 (8) ◽  
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
High Hardness ◽  
Heat Treating ◽  
Silicon Alloys ◽  
Aluminum Silicon Alloys ◽  
Temperature Performance

Abstract REYNOLDS 390 and A390 are hypereutectic aluminum-silicon alloys having excellent wear resistance coupled with good mechanical properties, high hardness, and low coefficients of expansion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, and machining. Filing Code: Al-203. Producer or source: Reynolds Metals Company.

AMPCO 483

Alloy Digest ◽  
1978 ◽  
Vol 27 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
High Hardness ◽  
High Strength ◽  
Heat Treating ◽  
Good Resistance ◽  
Copper Base ◽  
Copper Base Alloy

Abstract AMPCO 483 is a copper-base alloy that can be used in the cast or wrought form. It provides high strength, high hardness, excellent resistance to corrosion and good resistance to fatigue and wear. It is well suited for service at temperatures up to 750 F and for applications such as pickling equipment, nuts and marine hardware. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: Cu-352. Producer or source: Ampco Metal Inc..

HOWMET No. 3

Alloy Digest ◽  
1968 ◽  
Vol 17 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Base Alloy ◽  
High Hardness ◽  
Heat Treating ◽  
High Heat ◽  
Cobalt Base Alloy ◽  
Metal Products ◽  
Cobalt Base

Abstract HOWMET No. 3 is a cobalt-base alloy having high hardness and compressive strength, high heat and corrosion resistance, along with excellent abrasion and wear resistance. It is recommended for bushings, scrapers, valve parts, and other machinery components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Co-56. Producer or source: Howmet Corporation Metal Products Division.

ALLEGHENY LUDLUM STAINLESS TYPE 440A

Alloy Digest ◽  
1955 ◽  
Vol 4 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
High Hardness ◽  
Heat Treating ◽  
Chromium Steel ◽  
High Carbon

Abstract ALLEGHENY LUDLUM STAINLESS TYPE 440A is a hardenable high-carbon chromium steel designed to provide stainless properties with high hardness. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-38. Producer or source: Allegheny Ludlum Corporation.

Sign in / Sign up

Export Citation Format

Share Document