Plasma transferred arc surface alloying of a construction steel to produce a metal matrix composite tool steel with TiC as reinforcing particles

2003 ◽  
Vol 165 (3) ◽  
pp. 286-295 ◽  
Author(s):  
L Bourithis ◽  
Ath Milonas ◽  
G.D Papadimitriou
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Tool Steel ◽  
Metal Matrix ◽  
Surface Alloying ◽  
Reinforcing Particles ◽  
Composite Tool ◽  
Plasma Transferred Arc ◽  
Construction Steel ◽  
Transferred Arc

Effect of silicon carbide particles on the mechanical and plastic properties of the AlMg6/10% SiC metal matrix composite

2018 ◽  
Vol 52 (24) ◽  
pp. 3351-3363 ◽  
Author(s):  
Alexander S Smirnov ◽  
Vladimir P Shveikin ◽  
Evgeniya O Smirnova ◽  
George A Belozerov ◽  
Anatoly V Konovalov ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Aluminum Alloy ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Tensile Tests ◽  
Mechanical Tests ◽  
Plastic Properties ◽  
Initial Yield Stress ◽  
Reinforcing Particles

This work deals with studying the effect of reinforcing SiC particles on the mechanical and plastic properties of a metal matrix composite with a matrix of aluminum alloy AlMg6 (the 1560 aluminum alloy according to the Russian State Standard GOST 4784−97). We assess this effect using the results of mechanical tests at the microscale and macroscale levels. The paper analyzes the fracture mechanism at the microlevel under tensile and compressive stress conditions, as well as the type of contact between the composite constituents. The experimental results obtained for the metal matrix composite are compared with analogous experimental data for the AlMg6 alloy and a compacted material made from the AlMg6 alloy (a compacted powder without addition of SiC reinforcing particles). The studied compacted materials were not previously subjected to extrusion. The tests show a decisive influence of the reinforcing particles on the plastic and mechanical properties of the AlMg6/10% SiC metal matrix composite under compression and tension. For example, the addition of silicon carbide increased the initial yield stress of the compacted material by 26% under tensile tests, and the percentage elongation after fracture was increased up to 1.1%, while it amounted to 0.02% for the compacted material without addition of silicon carbide. Under compression, on the contrary, the addition of silicon carbide degraded plastic properties. As a result, the percentage compression before cracking was 28.4% and 57.9% for the compacted materials with and without addition of silicon carbide, respectively.

scholarly journals Matrix Composite Coatings Deposited on AISI 4715 Steel by Powder Plasma-Transferred Arc Welding. Part 3. Comparison of the Brittle Fracture Resistance of Wear-Resistant Composite Layers Surfaced Using the PPTAW Method

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6066
Author(s):  
Artur Czupryński ◽  
Marcin Żuk
Keyword(s):  
Nickel Alloy ◽  
Matrix Composite ◽  
Arc Welding ◽  
Metal Matrix ◽  
Composite Coatings ◽  
Wear Resistant ◽  
Plasma Transferred Arc ◽  
Composite Layers ◽  
Transferred Arc ◽  
Plasma Transferred Arc Welding

This article is the last of a series of publications included in the MDPI special edition entitled “Innovative Technologies and Materials for the Production of Mechanical, Thermal and Corrosion Wear-Resistant Surface Layers and Coatings”. Powder plasma-transferred arc welding (PPTAW) was used to surface metal matrix composite (MMC) layers using a mixture of cobalt (Co3) and nickel (Ni3) alloy powders. These powders contained different proportions and types of hard reinforcing phases in the form of ceramic carbides (TiC and WC-W2C), titanium diboride (TiB2), and of tungsten-coated synthetic polycrystalline diamond (PD-W). The resistance of the composite layers to cracking under the influence of dynamic loading was determined using Charpy hammer impact tests. The results showed that the various interactions between the ceramic particles and the metal matrix significantly affected the formation process and porosity of the composite surfacing welds on the AISI 4715 low-alloy structural steel substrate. They also affected the distribution and proportion of reinforcing-phase particles in the matrix. The size, shape, and type of the ceramic reinforcement particles and the surfacing weld density significantly impacted the brittleness of the padded MMC layer. The fracture toughness increased upon decreasing the particle size of the hard reinforcing phase in the nickel alloy matrix and upon increasing the composite density. The calculated mean critical stress intensity factor KIc of the steel samples with deposited layers of cobalt alloy reinforced with TiC and PD-W particles was 4.3 MPa⋅m12 higher than that of the nickel alloy reinforced with TiC and WC-W2C particles.

Microstructure and Creep Behavior of BN/Al (-Mg) Metal Matrix Composite

2005 ◽  
Vol 297-300 ◽  
pp. 1102-1107
Author(s):  
Dong Bok Lee ◽  
Seung Wan Woo ◽  
Si Yon Bae ◽  
Byeong Soo Lim
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Creep Behavior ◽  
Creep Resistance ◽  
Metal Matrix ◽  
The Other ◽  
Pressureless Infiltration ◽  
Matrix Composites ◽  
Reinforcing Particles ◽  
Infiltration Technique

Metal matrix composites (MMC) that consisted of Al (-Mg) matrix reinforced with initially added BN particles were fabricated using the pressureless infiltration technique. Initially added BN particles were partly consumed to make AlN, as new reinforcing particles. The other reaction product was MgAlB2 dispersoids. The creep behavior was investigated between 225- 275oC in air. Despite of the presence of the reinforcing particles, the creep resistance was found to be unsatisfactory due to the weak Al (-Mg) matrix.

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