Effect of Laser Surface Heat Treatment on Wear and Hardness Resistance of Metal Matrix Composite from (Al- 6061+ SiC Particles)

2021 ◽  
Vol 1039 ◽  
pp. 86-95
Author(s):  
Mohammed Z. Hasan ◽  
Mahmood A. Mohammed ◽  
Isam E. Yousif
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Composite Material ◽  
Aluminum Alloy ◽  
Base Alloy ◽  
Surface Heat ◽  
Laser Surface ◽  
Al 6061 ◽  
Sic Particles ◽  
Prepared Composite

In this paper, the effect of laser surface heat treatment on wear resistance and hardness of an aluminum alloy Al-6061 as a base material with different ratios of SiC particles as an additive was studied. The composite material was prepared from Al-6061 aluminum alloy and particles with a granular size of (10-70) μm with different weight ratios (15%, 12%, 9%, 6%, 3%), where the stirred plumbing technique was used to ensure An increase in the wettability of SiC particles in the base alloy fuse and the possibility of distributing it uniformly. The laser surface heat treatment of the composite material prepared using the Neodymium - YAG laser was performed with a power of 1J, a wavelength of 1.06 μm, a pulse time of 5 m sec, and a distance of 30 cm between the exit area of the laser from the system and the piece to be thermally treated. The results showed an improvement in the mechanical properties of the prepared composite material (hardness, wear resistance) after performing the surface heat treatment by laser. The increase in the hardness amount was 12.9% when adding 15% of particles to the base alloy. The results showed that the wear rate value decreases with increasing the added percentages of SiC particles. The results also showed that the surface heat treatment of the laser led to an improvement in the wear resistance of the prepared composite material and for all the added ratios of SiC particles at different loading pressures used and in close proportions. Also, the prepared samples were photographed using a regular optical microscope before and after the laser surface heat treatment.

Dry Sliding Friction and Wear Behavior of Surface Hardened Ferrous PM Cam Materials for Automobile Applications

2013 ◽  
Vol 652-654 ◽  
pp. 1399-1404 ◽  
Author(s):  
Yue Ying Li ◽  
Qi Chao Deng ◽  
Ping Shi ◽  
Zhen Liang Qiao
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
High Frequency ◽  
Sliding Friction ◽  
Wear Behavior ◽  
Surface Heat ◽  
Laser Surface ◽  
Surface Quenching ◽  
High Frequency Induction

Two kinds of surface heat treatment (wide-band laser surface quenching and high-frequency induction quenching) had been performed on a ferrous PM cam material for automobile applications. Microstructure, hardness and tribological properties of ferrous PM cam materials were investigated. After laser surface quenching, the sintered cam materials could obtain finer martensite microstructure and higher hardness value, compared to high-frequency induction quenching. Wear tests revealed the superior wear resistance and coefficient of friction of laser surface hardened specimens in comparison with high-frequency induction quenched ones. Laser surface quenching can be a more effective surface heat treatment to improve wear resistance of the sintered cam materials than high-frequency induction quenching. On the lower test loads (such as 50N), the wear mechanism of the surface quenched ferrous PM cam materials is dominated adhesive and abrasive wear, while on the higher test loads (such as 120N and 150N), it is primarily delamination wear and abrasive wear.

Mechanical Properties and Microstructure of Aluminum Alloy Al-6061 Obtained by the Liquid Forging Process

2010 ◽  
Vol 654-656 ◽  
pp. 1420-1423 ◽  
Author(s):  
Chun Wei Su ◽  
Peng Hooi Oon ◽  
Y.H. Bai ◽  
Anders W.E. Jarfors
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Aluminum Alloy ◽  
Treatment Process ◽  
Forging Process ◽  
Al 6061 ◽  
Casting Alloys ◽  
Suitable Heat Treatment ◽  
Structural Applications ◽  
Wrought Aluminum

The liquid forging process has the flexibilities of casting in forming intricate profiles and features while imparting the liquid forged components with superior mechanical strength compared to similar components obtained via casting. Additionally, liquid forging requires significantly lower machine loads compared to solid forming processes. Currently, components that are formed by liquid forging are usually casting alloys of aluminum. This paper investigates the suitability of liquid forging a wrought aluminum alloy Al-6061 and the mechanical properties after forming. The proper handling of the Al-6061 alloy in its molten state is important in minimizing oxidation of its alloying elements. By maintaining the correct alloying composition of Al-6061 after liquid forging, these Al-6061 samples can subsequently undergo a suitable heat treatment process to significantly improve their yield strengths. Results show that the yield strengths of these liquid forged Al-6061 samples can be increased from about 90MPa, when they are in the as-liquid forged state, to about 275MPa after heat treatment. This improved yield strength is comparable to that of Al-6061 samples obtained by solid forming processes. As such, the liquid forging process here has been shown to be capable of forming wrought aluminum alloy components that has the potential for structural applications.

A new approach to control and optimize the laser surface heat treatment of materials

2018 ◽  
Vol 262 ◽  
pp. 492-502 ◽  
Author(s):  
Sagar V. Telrandhe ◽  
Jayabalan Bhagyaraj ◽  
Sushil Mishra ◽  
Shyamprasad Karagadde
Keyword(s):  
Heat Treatment ◽  
Surface Heat ◽  
Laser Surface ◽  
New Approach

scholarly journals Wear resistance of aluminum alloy modified with SiC by laser surface treatment

2020 ◽  
Vol 25 (1) ◽  
pp. 49-56
Author(s):  
M. Student ◽  
◽  
Kh. Zadorozhna ◽  
V. Gvosdetskii ◽  
H. Veselivska ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloy ◽  
Surface Treatment ◽  
Laser Surface ◽  
Laser Surface Treatment

scholarly journals Tempering Effects of Multitrack Laser Surface Heat Treatment of AISI 1045 Steel

2019 ◽  
Vol 31 (3) ◽  
pp. 1091
Author(s):  
Chi-Liang Kung ◽  
Hao-En Shih ◽  
Chao-Ming Hsu ◽  
Cheng-Yi Chen
Keyword(s):  
Heat Treatment ◽  
Surface Heat ◽  
Laser Surface ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

scholarly journals Effect of Heat Treatment on the Microstructure and Mechanical Properties of a Composite Made of Al-Si-Cu-Mg Aluminum Alloy Reinforced with SiC Particles

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1205
Author(s):  
Li ◽  
Yan ◽  
Wang ◽  
Li ◽  
Liu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Artificial Aging ◽  
Solution Treatment ◽  
Optimal Solution ◽  
Tensile Fracture ◽  
Large Area ◽  
Tensile Fracture Surface ◽  
Sic Particles ◽  
Eutectic Si

In this paper, the effect of heat treatment (solution treatment and artificial aging) on the microstructure and properties of as-cast Al5Si1Cu0.5Mg aluminum alloy and its composite reinforced with 1.5 wt.% SiC particles was studied. The results showed that at 520 °C the optimal solution time for the aluminum alloy and its composite is 9 h and 6 h, respectively. After solution treatment, the microstructure of these two materials consists of a uniform distribution of nearly spherical eutectic Si and skeletal γ phase, furthermore, the composite eutectic Si phase is smaller and γ phase is more dispersed. After artificial aging at 175 °C for 6 h, the microstructure of the composite is more dispersed and finer than that of the aluminum alloy on the whole and Al2Cu is precipitated. After heat treatment, the microhardness, ultimate tensile strength, and elongation of the aluminum alloy and its composite are higher than those of the as-casts. At the same time, the morphology of tensile fracture surface changes very much from a large area of cleavage plane to a large number of dimples and the tearing ridges become thicker for both the aluminum alloy and its composite.

DURALCAN W2FxxA

Alloy Digest ◽  
1995 ◽  
Vol 44 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Aluminum Alloy ◽  
High Temperature ◽  
Base Alloy ◽  
Volume Percent ◽  
Alloy Matrix ◽  
Temperature Performance ◽  
Aluminum Alloy Matrix ◽  
Wrought Aluminum

Abstract DURALCAN W2F.xxA is a heat-treatable wrought aluminum alloy matrix composite, where xx represents the volume percent of alumina particulate, Al2O3. The base alloy is aluminum 2618 (Alloy Digest Al-76, February 1959). This datasheet provides information on composition, physical properties, microstructure, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on high temperature performance and wear resistance. Filing Code: AL-337. Producer or source: Duralcan USA.

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