Superior wear performances of one-step forming TiCp/Ni3Al-Ni3Al multi-coating on powder metallurgy master alloy substrate

2018 ◽  
Vol 233 (5) ◽  
pp. 782-790
Author(s):  
Zirun Yang ◽  
Benguo Zhang ◽  
Haiqing Jiang ◽  
Haidi Xia ◽  
Xinjiang Zhang ◽  
...  
Keyword(s):  
Weight Loss ◽  
Wear Resistance ◽  
Powder Metallurgy ◽  
Elevated Temperatures ◽  
Steel Substrate ◽  
High Wear Resistance ◽  
High Temperature Strength ◽  
Ambient Temperatures ◽  
Wear Weight Loss ◽  
One Step

One-step forming TiCp/Ni3Al-Ni3Al multi-coating on powder metallurgy 316L stainless steel substrate was fabricated by vacuum hot-pressing sintering technology and its wear performances at different loads and ambient temperatures were investigated. The wear weight loss of TiCp/Ni3Al-Ni3Al multi-coating increased with the increase in the applied load and a mild-to-severe wear transition occurred. Inversely, the coating’s wear weight loss decreased as the ambient temperature increased. The high wear resistance at elevated temperatures was mainly attributed to high work-hardening capacity and high temperature strength of Ni3Al matrix. Besides, the mechanically mixed layer with dispersed TiC particulates prevented the substrate from plastic deformation and thermal softening, which were conducive to improve the wear resistance of the coating.

YSS HAP72

Alloy Digest ◽  
2019 ◽  
Vol 68 (10) ◽  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Powder Metallurgy ◽  
Tool Steel ◽  
High Speed ◽  
High Wear Resistance ◽  
Bend Strength ◽  
Temperature Performance ◽  
Very High

Abstract YSS HAP72 is a powder metallurgy high-speed tool steel with a very high wear resistance. This datasheet provides information on composition, hardness, and bend strength. It also includes information on high temperature performance. Filing Code: TS-779. Producer or source: Hitachi Metals America Ltd.

Dry Sliding Wear Behavior of the Reinforced by Graphite Particle and Heat Treated of Recycled Aluminum AA6061 Based MMC Fabricated by Powder Metallurgy Method

2017 ◽  
Vol 740 ◽  
pp. 9-16
Author(s):  
Ahmed Sahib Mahdi ◽  
Mohammad Sukri Mustapa ◽  
Mahmod Abd Hakim Mohamad ◽  
Abdul Latif M. Tobi ◽  
Muhammad Irfan Ab Kadir ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Powder Metallurgy ◽  
Compression Strength ◽  
Sliding Wear ◽  
Wear Behavior ◽  
High Wear Resistance ◽  
Dry Sliding Wear ◽  
Powder Metallurgy Method ◽  
Heat Treated ◽  
Improvement Ratio

The micro-hardness and compression of recycling aluminum alloy AA6061 were investigated as a function of the different microstructure and constituent powder metallurgy method. Five specimens were selected to investigate the compression strength and microhardness. The first, as fabricated specimen (as compacted), the second was as heat treated by quenching and aging process. Three specimens were mixed with Graphite particles as a reinforcement material. Compression strength values were tested for the specimens as fabricated and heat treated which were 195 and 300 MPa, respectively. The improvement ratio was 52% for the specimen as heat treated. On the other hand, high wear resistance was given by the specimen as heat treated, whereas, the lower wear strength was at the specimen mixed with 4.5% Graphite. These results were attributed to that the wear resistance related to the microhardness value.

The Research of Thermal Arc Sprayed Coatings Tribological Properties by Using Rubber Wheel Test

2015 ◽  
Vol 220-221 ◽  
pp. 693-697 ◽  
Author(s):  
Justinas Gargasas ◽  
Algirdas Vaclovas Valiulis ◽  
Irmantas Gedzevicius ◽  
Hanna Pokhmurska
Keyword(s):  
Wear Resistance ◽  
Mass Loss ◽  
Tribological Properties ◽  
Steel Substrate ◽  
High Wear Resistance ◽  
Tribological Behaviour ◽  
Oxide Inclusions ◽  
Porosity Of Coatings ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

This paper present the result obtained from new experimental STEIN-MESYFIL 953 V; STEIN-MESYFIL 954 V coatings. The surfacing material was wires of 1.6 mm diameter. The tests aimed at determining wear resistance of coatings sprayed on steel substrate. The investigation shows that the tribological behaviour of new experimental thermal arc sprayed coatings is greatly affected by its microstructural constituents such as porosity, oxide inclusions, and microhardness of coatings. Results show that increasing porosity of coatings twice, it doubles the mass loss. Results for thermal sprayed coatings of all experiments showed their high wear resistance and are discussed.

The Wear Behavior of Pulse Current Electroforming Ni-P-SiC Composite Coatings

2007 ◽  
Vol 364-366 ◽  
pp. 358-363 ◽  
Author(s):  
Kung Hsu Hou ◽  
Ming Chang Jeng ◽  
Yung Kang Shen ◽  
Ming Der Ger
Keyword(s):  
Weight Loss ◽  
Wear Resistance ◽  
Pulse Current ◽  
Wear Behavior ◽  
Composite Coatings ◽  
Wear Weight Loss ◽  
Sic Particles ◽  
The Coefficient Of Friction ◽  
Worn Surface ◽  
The Relationship

In this study, the SiC particles with a mean diameter of 300nm were used to be codeposited with Ni-P base to produce Ni-P-SiC composite coatings by means of the pulse current electroforming technology. The relationship between the SiC particles and phosphorous contents in the composite coatings has been constructed. The wear behavior of the Ni-P-SiC composite coatings was examined by that measurements data including the wear weight loss, the coefficient of friction, and the temperature increments under the wear tests, in which were correlated to the observation and analysis of the worn surface of the composite coatings. Experimental results show that the wear resistance of Ni-P-SiC composite coatings is superior to Ni-P composite coatings, if they are under the same level of hardness. In addition, the wear weight loss of Ni-P-SiC composite coatings is even about 62% less than that of Ni-P composite coatings, if they are based on the same production conditions. Further more, both the hardness and wear resistance of Ni-P-SiC composite coatings are superior to pure Ni coating, wherein its wear resistance is even up to 10 times better than that of pure Ni coating.

Selective Laser Melting of Oxide Dispersion Strengthened Steels

2011 ◽  
Author(s):  
Thomas Boegelein ◽  
Ashwin Rao ◽  
Andrew R. Jones ◽  
Gordon J. Tatlock
Keyword(s):  
Selective Laser Melting ◽  
Elevated Temperatures ◽  
Prolonged Exposure ◽  
Steel Substrate ◽  
Oxide Dispersion Strengthened ◽  
Nickel Base Superalloy ◽  
High Temperature Strength ◽  
Oxide Dispersion ◽  
Laser Melting ◽  
Ods Alloys

Oxide Dispersion Strengthened (ODS) alloys are a long established class of materials manufactured using powder metallurgy techniques. These alloys can offer exceptional high temperature strength and resistance to radiation damage, thus are envisioned to be used in a number of future nuclear and fossil energy power applications. However, due to the manufacturing steps involved, the overall cost to build components with these materials can be high. This paper presents work conducted to assess the feasibility of applying Selective Laser Melting (SLM) techniques to either coat or direct build on substrates with Fe-based Oxide Dispersion Strengthened (ODS) alloys. SLM is a rapid prototyping technique which can be used to manufacture near net-shape solid components from layered metallic powder beds. Two different geometries were of interest in this study — a simple button configuration with a nickel-base superalloy (IN939) substrate and a more complex hexagonal shaped wall with a mild steel substrate. Powders of PM2000 (a FeCrAl based ODS alloy) were deposited in both cases. Heat treatments were subsequently conducted on these structures to investigate effects of temperature on the bond characteristics and secondary recrystallisation. Electron microscopy examination revealed significant amounts of diffusion between the nickel and the ODS powders which enhances the bond strength. The studies have revealed the existence of a strong bond between the substrate and the interface even after prolonged exposure at elevated temperatures.

TLP NINE

Alloy Digest ◽  
2001 ◽  
Vol 50 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Powder Metallurgy ◽  
Impact Toughness ◽  
Physical Properties ◽  
Heat Treating ◽  
High Impact ◽  
High Wear Resistance ◽  
Temperature Performance ◽  
Very High

Abstract Timken Latrobe Steel TLP Nine is made by powder metallurgy. It is an air-hardening tool steel with very high wear resistance and high impact toughness. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on high temperature performance as well as heat treating and machining. Filing Code: TS-585. Producer or source: Timken Latrobe Steel.

New Cast Iron Alloys with High Wear Resistance at Elevated Temperatures

2011 ◽  
Vol 8 (9) ◽  
pp. 103236 ◽  
Author(s):  
Werner Theisen ◽  
Gerhard Gevelmann ◽  
L. Canale ◽  
S. W. Dean
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Elevated Temperatures ◽  
Iron Alloys ◽  
High Wear Resistance

scholarly journals Study of Wear, Hardness and Fractography of Millscale Reinforced Ceramic Matrix Composites

2019 ◽  
Vol 15 (2) ◽  
pp. 192-201
Author(s):  
Stephen Durowaye ◽  
Olatunde Sekunowo ◽  
Ganiyu Lawal
Keyword(s):  
Wear Resistance ◽  
Powder Metallurgy ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
High Wear Resistance ◽  
Matrix Composites ◽  
Reinforced Composite ◽  
Effective Performance ◽  
Particles Size Distribution ◽  
Low Wear

Ceramic matrix composites were developed by powder metallurgy and the blended matrix was reinforced with millscale particles from 3-18 wt.% at particles size distribution of 106-250 μm. Microstructural, hardness and wear characterisations were carried out on the composites using standardised methods. The results showed that the 106 μm millscale particles reinforced composite exhibited desirable hardness value of 124 BHN, low wear rate of 1.99 x 10-6 g/m and appreciable high wear resistance indicating a potential for effective performance in service. The composites worn surfaces revealed abrasion, adhesion and grooves formation. These features derived from the composites microstructure formed the basis on which enhancement procedures could be developed.

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