Korea Zinc Flake Coating - Zincotec Co., Ltd.Onplus
◈ About Zincotec Co., Ltd.
All products manufactured by Zincotec are water soluble, non-flammable and environmentally friendly. Zincotec products also meet any and all safety standards and codes related to the harmfulness against the human body and create a safe and comfortable work environment with convenient handling and low odor, a significant difference when compared with solvent based products.
For more information, visit our website !
http://zincotec.com/
Korea Zinc Flake Coating - Zincotec Co., Ltd.Onplus
◈ About Zincotec Co., Ltd.
All products manufactured by Zincotec are water soluble, non-flammable and environmentally friendly. Zincotec products also meet any and all safety standards and codes related to the harmfulness against the human body and create a safe and comfortable work environment with convenient handling and low odor, a significant difference when compared with solvent based products.
For more information, visit our website !
http://zincotec.com/
Introducing ERIKS Gasket Technologies new Super8 range of gasket materials, includes a quick reference gasket selection chart and material specifications.
Thymus Vulgarize extract (TVE) was reported to be good corrosion inhibitor for copper and
brass in acid media. This paper presents experimental study to investigate the efficiency of Thyme
leaves extract as corrosion inhibitor for concrete reinforcing steel samples exposed to alkaline
solution consisting of 2% KOH and 3% NaCl which is a simulation to the chloride contaminated
concrete pore solution (SCP) using open circuit potential and potentiodynamic polarization
technique. Various concentration (100 ml/L, 150 ml/L, 250 ml/L) of TVE were used in this
experiment. Open circuit potential (OCP) measurements indicated a shifting in potential toward
noble direction for steel samples immersed in SCP solution containing TVE compared with control
sample.
This term presentation was submitted as a partial requirement for the course: MSE 507: Advanced micro-fabrication with CAD (TSUPREM4). In this presentation, the fabrication process of 3D FINFET transistor has been presented in accordance with US patent (Patent no. US 7,973,389 B2, assignee: Intel Corporation, Santa Clara, CA, US) using Shallow Trench Isolation (STI) method.
What is CAF?
A growth consisting of a conductive copper-containing salt. It is created electrochemically and grows from the anode toward the cathode subsurface along the epoxy/glass interface.
Conductive Anodic Filament (CAF) formation does happen
o When it happens, it can cause a lot of pain
CAF behavior is relatively stable
o Limited change in key PCB technology (pitch, materials,
assembly)
CAF mitigation is well known (execute it!)
o Evaluate your designs
o Qualify your suppliers
PSX 700 is a weatherable epoxy-siloxane coating that is self-priming or can be used with a suitable epoxy primer. PSX 700 offers a combination of outstanding corrosion resistance, abrasion resistance, stain resistance and long-term gloss retention. Whether applied to structural steel, concrete floors or non-ferrous substrates, PSX 700 delivers longterm performance.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Introducing ERIKS Gasket Technologies new Super8 range of gasket materials, includes a quick reference gasket selection chart and material specifications.
Thymus Vulgarize extract (TVE) was reported to be good corrosion inhibitor for copper and
brass in acid media. This paper presents experimental study to investigate the efficiency of Thyme
leaves extract as corrosion inhibitor for concrete reinforcing steel samples exposed to alkaline
solution consisting of 2% KOH and 3% NaCl which is a simulation to the chloride contaminated
concrete pore solution (SCP) using open circuit potential and potentiodynamic polarization
technique. Various concentration (100 ml/L, 150 ml/L, 250 ml/L) of TVE were used in this
experiment. Open circuit potential (OCP) measurements indicated a shifting in potential toward
noble direction for steel samples immersed in SCP solution containing TVE compared with control
sample.
This term presentation was submitted as a partial requirement for the course: MSE 507: Advanced micro-fabrication with CAD (TSUPREM4). In this presentation, the fabrication process of 3D FINFET transistor has been presented in accordance with US patent (Patent no. US 7,973,389 B2, assignee: Intel Corporation, Santa Clara, CA, US) using Shallow Trench Isolation (STI) method.
What is CAF?
A growth consisting of a conductive copper-containing salt. It is created electrochemically and grows from the anode toward the cathode subsurface along the epoxy/glass interface.
Conductive Anodic Filament (CAF) formation does happen
o When it happens, it can cause a lot of pain
CAF behavior is relatively stable
o Limited change in key PCB technology (pitch, materials,
assembly)
CAF mitigation is well known (execute it!)
o Evaluate your designs
o Qualify your suppliers
PSX 700 is a weatherable epoxy-siloxane coating that is self-priming or can be used with a suitable epoxy primer. PSX 700 offers a combination of outstanding corrosion resistance, abrasion resistance, stain resistance and long-term gloss retention. Whether applied to structural steel, concrete floors or non-ferrous substrates, PSX 700 delivers longterm performance.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Synthesis, characterization and mechanical behavior of nickel coated graphite...eSAT Journals
Abstract In this paper we are going to describe the characterization and mechanical behavior of the Nickel Coated Graphite (NCG) particle reinforced Al6061 metal matrix composite. Many a times, the composites fail to answer the question or fail to serve the purpose for which it is fabricated to. This is due to the less wetting nature between the reinforcement and the matrix and the impossibility of higher percentage of reinforcement addition in to the matrix. However, metal coated reinforcements have been able to overcome these limitations to a very extent. NCG particles reinforced Al6061 matrix with various weight percentages were fabricated by Squeeze casting method. Samples of 0, 5 and 10 wt% reinforcement addition were synthesized and characterized. Finally some useful conclusions were made. Keywords: Metal Coated Reinforcement; Nickel Coated Graphite; Squeeze Casting; Wetting.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Similar to MMC 2015 Poster presentation Olaniyi (20)
![RESEARCH POSTER PRESENTATION DESIGN © 2012
www.PosterPresentations.com
Nickel-base superalloys are widely used in
aerospace applications.
They possess excellent mechanical properties
and corrosion resistance in high temperature
gaseous environment.
BACKGROUND
OBJECTIVES
RESULTS & DISCUSSIONS
CONCLUSIONS
Chromium is essential in the filler alloy for
TLP bonding of Nickel-base aerospace
superalloy IN738 to aid corrosion resistance.
TLP bonding produces deleterious centerline
eutectic which reduces the corrosion
resistance of the joint .
A new method of powder mixture filler
produces eutectic-free joint at shorter time
with nearly uniform chromium distribution
which translates to better corrosion
resistance in TLP bonded joints.
Nickel-base superalloys are highly
susceptibility to cracking during
conventional welding processes.
Transient Liquid Phase bonding (TLPB) has
evolved as a viable joining process for this
difficult to weld alloys.
Limited information on the corrosion
performance when joined by TLPB process.
Department of Mechanical and Manufacturing Engineering University of Manitoba, Winnipeg, MB R3T 5V6
O. Adebajo and O.A. Ojo
Effect of Transient Liquid Phase Bonding on the Corrosion Performance of Nickel-base
Aerospace Superalloy
The objective of the current work is to evaluate
the effect of TLP bonding on corrosion
performance of nickel-base aerospace
superalloy.
Microstructure of Brazed Joint with Eutectic
Eutectic width increases as gap width increases.
Effect of Brazing Parameters on Eutectic width
0
200
400
600
800
1000
1200
200 400 600 800 1000 1200 1400 1600
Gapwidth(µm)
Eutectic width (µm)
Fig. 3: Effect of Gap width in size of Eutectic
50
100
150
200
250
300
350
400
450
50 100 150 200 250 300 350 400
EutecticWidth(µm)
Square Root of Time (Sec 1/2)
Fig. 4: Variation of Eutectic Width with Root of Holding Time
RESULTS & DISCUSSIONS
Centreline eutectic consists of Nickel and
Chromium rich borides.
Corrosion resistance increases as eutectic
width decreases.
Microstructure of Joint with No Eutectic
RESULTS & DISCUSSIONS
Eutectic width decreases as hold time increases.
Brazed NE
BM
Brazed WE
HNO3
80oC
Financial support from NSERC is gratefully
acknowledged
ACKNOWLEDGEMENT
Fig. 1: Jet turbine engine [1] M. France, FRANCE-METALLURGIE, 2015 (2015)
MATERIALS AND METHODS
Nickel-base single crystal superalloy IN738
was used as the base material.
Ni-base Chromium bearing and Chromium
free inter-fillers were used.
Bonding was done in a vacuum furnace for
different gaps sizes, bonding temperatures
and holding time.
Test coupons were mounted on bakelite and
surface prepared according to ASTM G5 for
electrochemical polarization.
Substrate Substrate
Fig. 2: Joint microstructure with Chromium distribution across joint
Uneven Cr peaks
Joint
Electrochemical Polarization
Fig. 5: Effect of Chromium in the filler
Chromium Free Filler
Chromium Bearing Filler
HNO3
Fig. 6: Variation of Eutectic Width with Corrosion Resistance
400µm<EW<1000µm
EW<50µm
200EW>400µm
50µm>EW<200µm
EW
CR
HNO3
25oC
It is possible to produce eutectic free joint by
a new method using powder mixture as filler
Substrate SubstrateJoint
Cr Distribution NE
Fairly uniform Cr peaks
Fig. 7: Joint microstructure with Chromium distribution across joint
Brazed NE
BM
BrazedWE
HNO3
25oC
Brazed NE
BM
Brazed WE
H2SO4
25oC
Fig. 8: Brazed with eutectic and with no eutectic in HNO3 and H2SO4
No eutectic joint shows comparable
corrosion resistance with the base material
in both HNO3 and H2SO4.
Electrochemical Polarization
Brazed Joint with Eutectic vs without Eutectic
As temperature increases from 25-80oC,the
corrosion resistance generally reduces but
that of the joint with no eutectic remains
comparable to that of the base material.
Fig. 6: Effect of Temperature on Corrosion Resistance of Brazed joints
Cr 20 wt %
Cr 16 wt %
Chromium bearing filler shows better
corrosion resistance than Chromium free
filler
Electrochemical Polarization Electrochemical Polarization](https://image.slidesharecdn.com/1c55628e-13eb-4274-ba88-30cdf7ea9d4c-160921173017/85/MMC-2015-Poster-presentation-Olaniyi-1-320.jpg)
