Effect of heat treatment and extrusion on wear properties of AZ91-Pr alloy

2019 ◽  
Vol 110 (11) ◽  
pp. 1025-1031
Author(s):  
Ning Li ◽  
Hong Yan
Keyword(s):  
Heat Treatment ◽  
Wear Properties

EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE CHARACTERISTICS OF LASER COMPOSITES

2014 ◽  
Vol 21 (01) ◽  
pp. 1450014
Author(s):  
PENG LIU ◽  
YUANBIN ZHANG ◽  
YAJIANG LI ◽  
QINGQING YANG ◽  
YAN LIU ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Electron Microscope ◽  
Theoretical Basis ◽  
Laser Alloying ◽  
Wear Properties ◽  
Microstructure Characteristics ◽  
Transmission Electron ◽  
Treatment Technologies ◽  
Intensity Transfer ◽  
Scanning Electron

In this paper, effect of heat treatment on the microstructures and wear properties of laser alloying (LA) composites is investigated. LA of the T - Co 50/ FeSi / TiC / TiN / CeO 2 mixed powders on substrate of 45 steel can form the hard composites, which increased the wear resistance of substrate greatly. Such LA composites were investigated by means of a scanning electron microscope (SEM) and a transmission electron microscope (TEM). The tempering promoted the growth of the block-shape hard phases, favoring an enhancement of the integrity of block-shape hard phases; and tempering also improved greatly the formation mechanism, guarantying the composites to have enough ability of intensity transfer. This research provided essential experiment and theoretical basis to promote the application of the laser and heat treatment technologies in the field of surface modification.

Effect of Different Heat Treatments on Mechanical Properties of Laser Sintered Additive Manufactured Parts

2017 ◽  
Author(s):  
Sagar Sarkar ◽  
Cheruvu Siva Kumar ◽  
Ashish Kumar Nath
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Yield Strength ◽  
Tensile Strain ◽  
Wear Loss ◽  
Layer By Layer ◽  
Solution Annealing ◽  
Wear Properties ◽  
Sem Images ◽  
Wide Range

One of the most popular additive manufacturing processes is laser based direct metal laser sintering process which enables us to make complex three dimensional parts directly from CAD models. Due to layer by layer formation, parts built in this process tend to be anisotropic in nature. Suitable heat treatment can reduce this anisotropic behaviour by changing the microstructure. Depending upon the applications, a wide range of mechanical properties can be achieved between 482–621° C temperature for precipitation-hardened stainless steels. In the present study effect of different heat treatment processes, namely solution annealing, ageing and overaging, on tensile strength, hardness and wear properties has been studied in detail. Suitable metallurgical and mechanical characterization techniques have been applied wherever required, to support the experimental observations. Results show H900 condition gives highest yield strength and lowest tensile strain at break whereas solution annealing gives lowest yield strength and as-built condition gives highest tensile strain at break. SEM images show that H900 and H1150 condition produces brittle and ductile morphology respectively which in turn gives highest and lowest hardness value respectively.XRD analysis shows presence of austenite phases which can increase hardness at the cost of ductility. Average wear loss for H900 condition is highest whereas it is lowest for solution annealed condition. Further optical and SEM images have been taken to understand the basic wear mechanism involved.

scholarly journals Effect of heat treatment on mechanical and wear properties of Zn–40Al–2Cu–2Si alloy

2021 ◽  
Vol 31 (9) ◽  
pp. 2651-2663
Author(s):  
Temel SAVAŞKAN ◽  
Zeki AZAKLI ◽  
Ali Paşa HEKÌMOĞLU
Keyword(s):  
Heat Treatment ◽  
Wear Properties

scholarly journals Influence of Reinforcements and Heat Treatment on Mechanical and Wear Properties of Al 7075 based Hybrid Composites

2014 ◽  
Vol 5 ◽  
pp. 508-516 ◽  
Author(s):  
M. Sreenivasa Reddy ◽  
Soma. V. Chetty ◽  
Sudheer Premkumar ◽  
H.N. Reddappa
Keyword(s):  
Heat Treatment ◽  
Hybrid Composites ◽  
Wear Properties ◽  
Al 7075

608 Influence of heat treatment on wear properties of thermal sprayed Co-Cr-Mo coatings

2012 ◽  
Vol 2012.48 (0) ◽  
pp. 200-201
Author(s):  
Yasuhiro YOSHINO ◽  
Keita KUDO ◽  
Takayuki KUWASHIMA ◽  
Keiji YANAGIHARA ◽  
Akira IWABUCHI ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Wear Properties

Sliding Wear Characteristics of Plasma Sprayed 8%Y2O3-Zr Coating for Post-Spray Heat Treatment

2006 ◽  
Vol 324-325 ◽  
pp. 1139-1142
Author(s):  
Young Hun Chae ◽  
Min Soo Suh ◽  
Seock Sam Kim
Keyword(s):  
Heat Treatment ◽  
Residual Stress ◽  
Diffraction Method ◽  
Treatment Temperature ◽  
Zirconia Coating ◽  
X Ray Diffraction ◽  
Wear Properties ◽  
Wear Characteristics ◽  
Plasma Sprayed ◽  
Post Spray Heat Treatment

The purpose of this study is to investigate the wear characteristics of yttria-stabilized zirconia coating as a function of effect on post-spray heat treatment. We concerned that the residual stress is due to during cooling from a high deposition temperature. We will focus on the tribological wear performance as a magnitude of residual stress. The effect of residual stress as post-spay heat treatment temperature will be discussed. The plasma-sprayed 8%Y2O3-Zirconia coating is studied to know the relationship between phase transformations and wear properties after post-spray heat treatment. Wear tests is carried out with ball on disk type on 50 N, 70 N, 90 N under room temperature. The transformation of phase and magnitude of residual stress are measured by x-ray diffraction method (XRD). Tribological characteristics and wear mechanism for post-spray heat treatment is observed by SEM.

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