On the Microstructure, Strength, Fracture, and Tribological Properties of Iron-Based MMCs with Addition of Mixed Carbide Nanoparticulates

Królczyk, Grzegorz; Feldshtein, E.; Dyachkova, L. N.; Michalski, Mariusz; Baranowski, Tomasz; Chudy, Roman

doi:10.3390/ma13132892

Cited by 9 publications

(5 citation statements)

References 27 publications

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“…The as-built specimen shows an ultimate tensile strength (UTS) of 1245 MPa and a strain of 9.49% ( Figure 5 a), thereby suggesting the best tensile properties. Only a cleavage fracture (yellow triangle in Figure 6 a) is observed, indicating a typical brittle fracture [ 33 , 34 ]. The hardness of T5003 is similar to that of the as-built specimen; however, the UTS is 1126 MPa, which is 90% of that of the as-built specimen.…”

Section: Resultsmentioning

confidence: 99%

Influence of Tempering Temperature and Time on Microstructure and Mechanical Properties of Additively Manufactured H13 Tool Steel

et al. 2022

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Among various processes for manufacturing complex-shaped metal parts, additive manufacturing is highlighted as a process capable of reducing the wastage of materials without requiring a post-process, such as machining and finishing. In particular, it is a suitable new manufacturing technology for producing AISI H13 tool steel for hot-worked molds with complex cooling channels. In this study, we manufactured AISI H13 tool steel using the laser power bed fusion (LPBF) process and investigated the effects of tempering temperature and holding time on its microstructure and mechanical properties. The mechanical properties of the sub-grain cell microstructure of the AISI H13 tool steel manufactured using the LPBF process were superior to that of the H13 tool steel manufactured using the conventional method. These sub-grain cells decomposed and disappeared during the austenitizing process; however, the mechanical properties could be restored at a tempering temperature of 500 °C or higher owing to the secondary hardening and distribution of carbides. Furthermore, the mechanical properties deteriorated because of the decomposition of the martensite phase and the accumulation and coarsening of carbides when over-tempering occurred at 500 °C for 5 h and 550 °C for 3 h.

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Section: Resultsmentioning

confidence: 99%

Influence of Tempering Temperature and Time on Microstructure and Mechanical Properties of Additively Manufactured H13 Tool Steel

et al. 2022

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“…Wear rate increases with the enhancement of both the parameters. This is because of melting and formation of hardened layer on the contact surfaces of AMMC's and wear testing tool [69][70][71].…”

Section: Wear Affected By Slid Distancementioning

confidence: 99%

Mechanical Properties and Wear Behaviour of Stir Cast Aluminum Metal Matrix Composite: A Review

2022

IJE

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In this 21st century, various materials like metals, alloys, and composites are available for different industrial applications. Composite materials are gaining popularity due to their enhanced mechanical properties over other materials. However, for continuous improvement in the properties of these materials, different research groups are constantly inVolved in it. In this research paper, the focus is to review the mechanical properties like hardness, tensile strength, flexural strength, impact strength along with surface characteristics like wear resistance of AMMC's. As per the available literature, liquid state processing is more popular than solid-state processing due to the better dispersion of the reinforcement particles in the matrix materials. Stir casting is mostly used liquid state processing method because of its ease and the overall low cost of production. It has been noticed that the mechanical and surface characteristics of AMMC's can be improved by adding different reinforcement particles in small percentages (usually 0.5-20%). It has been observed that hardness, tensile strength, and flexural strength for mostly used AMMC's ranges from MPa respectively. This research paper also included the influence of various working parameters on the wear rate of AMMC's. It is noticed that wear loss for AMMC's generally varies from 0.0050-0.004 g. The impact resistance is a crucial parameter in the study of AMMC's used for aerospace and automotive applications and it has been noticed that its value for popular AMMC's varies from 3.6-38 J.

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“…It is suggested aluminium alloy reinforced with particulates like Al 2 O 3 , SiC, and BA exhibits improved tensile strength, durability, and tribological properties (6) . According to the investigations, the percentage ratio of reinforcement influences composites' mechanical performance and wear behaviour.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study on Tribology and Surface Morphology Characterization of Hybrid Composites

Jayaprakash¹,

Niranjan²,

Vinod³

2022

IJST

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Objectives: To investigate the tribological behaviour of aluminium hybrid composites. Aluminium alloy (LM 25) is utilised in the aerospace and defence industries. Its wear properties are further improved to increase the lifespan of the components used in these sectors. Due to their ability to resist wear, graphite and silicon carbide are often used to manufacture machine tools. The objective is to identify the wear parameters of the LM 25 alloy. It was examined after stir-cased and strengthened with silicon carbide and graphite in various weight ratios. Methods: The dry sliding wear behaviour for aluminium alloys containing 2, 4, and 6 wt.% silicon carbide and a fixed 2 wt.% graphite is investigated using stir-casting composites. These process parameters included loads of 15, 30, and 45 N, sliding speeds of 0.55, 1.10, and 1.65 m/s, and sliding distances of 333, 666, and 999 m. Findings: According to the test results, the overall wear loss of SiC-reinforced hybrid composites was less compared to both unreinforced alloys and Al/Gr composites. The tribological behaviour of a composite consisting of 4% SiC and 2% Gr was significantly improved compared to the base alloy. Novelty: The novelty of this study is to induce a brake disc made of an Al alloy with wear-resistant SiC/Gr particle-reinforced aluminium composites committed to its surface. The role of tribology in determining material behaviour is shown to be important in controlling material removal.

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On the Microstructure, Strength, Fracture, and Tribological Properties of Iron-Based MMCs with Addition of Mixed Carbide Nanoparticulates

Cited by 9 publications

References 27 publications

Influence of Tempering Temperature and Time on Microstructure and Mechanical Properties of Additively Manufactured H13 Tool Steel

Influence of Tempering Temperature and Time on Microstructure and Mechanical Properties of Additively Manufactured H13 Tool Steel

Mechanical Properties and Wear Behaviour of Stir Cast Aluminum Metal Matrix Composite: A Review

Feasibility Study on Tribology and Surface Morphology Characterization of Hybrid Composites

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