scholarly journals Microwave-assisted Sintering of Fe-Al2O3 Nanocomposites: Study of Corrosion and Wear Properties

2015 ◽  
Vol 11 ◽  
pp. 689-694 ◽  
Author(s):  
M. Baghani ◽  
M. Aliofkhazraei ◽  
R. Poursalehi
Keyword(s):  
Corrosion And Wear ◽  
Wear Properties ◽  
Microwave Assisted

CORROSION AND WEAR PROPERTIES OF ELECTRODEPOSITED TERTIARY NANOCOMPOSITE Zn–Ni (ALUMINA–YITTRIA–GERAPHENE) COATING

2016 ◽  
Vol 24 (05) ◽  
pp. 1750066 ◽  
Author(s):  
HAMED RAHMANI ◽  
MAHMOOD ALIOFKHAZRAEI ◽  
ABDOSSALAM KARIMZADEH
Keyword(s):  
Duty Cycle ◽  
Zinc Sulphate ◽  
Pulse Current ◽  
Corrosion And Wear ◽  
Pulsed Current ◽  
Passive Current Density ◽  
Wear Properties ◽  
Nickel Zinc ◽  
Pulsed Electrodeposition ◽  
Passive Current

Nanocomposite Ni–Zn coatings containing 80 wt.% Al2O3, 5 wt.% Y2O3 and 15 wt.% graphene were fabricated by pulsed electrodeposition method in nickel–zinc sulphate-based electrolyte and effects of pulse current parameters on nickel and other element contents, microstructure, resistance to corrosion and tribological properties of the coatings were investigated. The pulsed current with duty cycle from 10% to 50% was applied to different samples and frequency changed gradually from 500 to 4000[Formula: see text]Hz in five steps during coating process. Increasing the duty cycle led to decrease of absorbed nanoparticles in the surface of the coatings from 4.4 vol% to 3.58 vol% The sample coated with 10% duty cycle had utmost alumina content in the coating surface, 3.5 vol% in first layer up to 4.4 vol% in fifth layer. The sample coated with 30% duty cycle had higher corrosion resistance with passive current density of 2.5[Formula: see text]mA/cm2. Furthermore, the results showed that by increasing the duty cycle, wear rate had been increased up to 1.3[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text][Formula: see text]mm2/N[Formula: see text]m.

Investigations on the microstructure, mechanical, corrosion and wear properties of Mg–9Al–xGd (0, 0.5, 1, and 2 wt%) alloys

2017 ◽  
Vol 32 (19) ◽  
pp. 3732-3743
Author(s):  
Karuna Ratnakaran Athul ◽  
Amirthalingam Srinivasan ◽  
Uma Thanu Subramonia Pillai
Keyword(s):  
Corrosion And Wear ◽  
Wear Properties ◽  
Image Position

Abstract

Novel bilayer Zn Ni/Ni Co SiC nanocomposite coating with exceptional corrosion and wear properties by pulse electrodeposition

2018 ◽  
Vol 738 ◽  
pp. 394-404 ◽  
Author(s):  
Saptarshi Das ◽  
Swastika Banthia ◽  
Arghya Patra ◽  
Srijan Sengupta ◽  
Shiv Brat Singh
Keyword(s):  
Nanocomposite Coating ◽  
Corrosion And Wear ◽  
Pulse Electrodeposition ◽  
Wear Properties

scholarly journals The Corrosion and Wear Behaviors of a Medium-Carbon Bainitic Steel Treated by Boro-Austempering Process

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1959
Author(s):  
Man Liu ◽  
Wei Wang ◽  
Haijiang Hu ◽  
Feng Cai ◽  
Sheng Liu ◽  
...  
Keyword(s):  
Corrosion And Wear ◽  
Wear Property ◽  
Bainitic Steel ◽  
Wear Properties ◽  
Wear Performance ◽  
Medium Carbon ◽  
Electron Probe Micro Analyzer ◽  
Phase Coating ◽  
Kinetics Of ◽  
Electrode Technique

The effects of boro-austempering treatment on growth kinetics of borided layers, microstructure, and properties in a medium-carbon bainitic steel were investigated. The microstructure, distribution in coatings, corrosion, and wear properties of boro-austempered steels were characterized by a microscope, field-emission electron probe micro analyzer, scanning vibrating electrode technique system and wear resistance machine. The results show that the corrosion resistance of steels in different corrosive mediums was significantly enhanced by boro-austempering treatment. In addition, the wear performance of borided layers was improved by more than two times compared to bainitic substrates, proving a better wear property of samples treated through the boro-austempering route. The solubility of carbon and silicon in borides is very little. In addition, the dual-phase coating of FeB and Fe2B was observed, and the internal stress induced during the growth of Fe2B and FeB was almost eliminated. The preferential crystallographic growth directions of Fe2B and FeB are [001] and [010], respectively, which belongs to the (100) plane. Finally, the kinetics equation d2 = 0.125·t of the borided layers at 1223 K was established.

COOPER ALLOY PH-55A

Alloy Digest ◽  
1973 ◽  
Vol 22 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Elevated Temperatures ◽  
Erosion Resistance ◽  
High Hardness ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Wear Properties ◽  
Temperature Performance

Abstract COOPER Alloy PH-55A comprises three grades each of which offers a different combination of corrosion resistance, high hardness, high strength and machinability. They were developed to meet the combined requirements of high corrosion, abrasion and erosion resistance. They maintain their corrosion and wear properties at elevated temperatures (1000 to 1400 F). This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: SS-109. Producer or source: Cooper Alloy Corporation. Originally published November 1960, revised September 1973.

A Review on Corrosion and Wear of Additively Manufactured Alloys

2021 ◽  
pp. 1-54
Author(s):  
Peter Renner ◽  
Swarn Jha ◽  
Yan Chen ◽  
Ajinkya Raut ◽  
Siddhi Mehta ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Consumer Satisfaction ◽  
Failure Modes ◽  
State Of The Art ◽  
Corrosion And Wear ◽  
Manufacturing Processes ◽  
Processing Conditions ◽  
Anisotropic Behavior ◽  
Wear Properties ◽  
Profound Influence

Abstract Products made from additive manufacturing processes have attracted great attention in engineering, health care, and society at large. However, there is little knowledge about the failure of additively manufactured alloys, in particular, corrosion and wear seen in most engineering applications. The haphazard and inefficient usage of such alloys raised concerns about safety, compatibility, reliability, cost, and consumer satisfaction. To address those concerns, we studied the mechanisms of the most common failure modes, corrosion and wear, of alloys fabricated through additive manufacturing based on published literature. It was found that the processing conditions have profound influence on microstructure and thus corrosion and wear resistance of alloys. Because of the layered structure, the initiation and growth of both corrosion and wear exhibited anisotropic behavior. The insights from this review could be used as a reference of the state-of-the art and to help in the development of future additively manufactured alloys with improved corrosion and wear properties.

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