scholarly journals The Exploitation Problems Marine Light Constructions for Corrosion Resistance / Problemy Eksploatacyjne Lekkich Konstrukcji Morskich w Aspekcie Odporności Korozyjnej

2015 ◽  
Vol 33 (1) ◽  
pp. 5-18
Author(s):  
Wojciech Jurczak
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Aluminum Alloys ◽  
Environmental Conditions ◽  
Construction Materials ◽  
Natural Phenomenon ◽  
Marine Structures ◽  
Ship Construction ◽  
Properties Of Materials ◽  
Materials Used

Abstract Corrosive degradation of construction materials for marine structures is a natural phenomenon. The extent of deterioration in mechanical properties of materials used in ship construction is directly linked to the chemical makeup of the material as well as the prevailing environmental conditions (e.g. salinity, physical stress) an the applied anti-corrosive coating. The paper presents results of research into stress corrosion of highly durable aluminum alloys. In order to increase the safety while using the above mentioned components, logging of corrosive potential has been introduced in the case of selected (corrosion-prone) number of surfaces of the quarter-section in relation the model 620 ship, made of 7020 alloy, so that the hazard of corrosive breach can be monitored.

scholarly journals Effect of Microwave and Conventional Modes of Heating on Sintering Behavior, Microstructural Evolution and Mechanical Properties of Al-Cu-Mn Alloys

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3675
Author(s):  
A. Muthuchamy ◽  
Muthe Srikanth ◽  
Dinesh K. Agrawal ◽  
A. Raja Annamalai
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Aluminum Alloys ◽  
Sintered Sample ◽  
Sintering Behavior ◽  
Sintered Alloy ◽  
Conventional Radiation ◽  
Sintered Aluminum ◽  
Electron Microscopes ◽  
Mechanical Properties And Corrosion

In this research, we intended to examine the effect of heating mode on the densification, microstructure, mechanical properties, and corrosion resistance of sintered aluminum alloys. The compacts were sintered in conventional (radiation-heated) and microwave (2.45 GHz, multimode) sintering furnaces followed by aging. Detailed analysis of the final sintered aluminum alloys was done using optical and scanning electron microscopes. The observations revealed that the microwave sintered sample has a relatively finer microstructure compared to its conventionally sintered counterparts. The experimental results also show that microwave sintered alloy has the best mechanical properties over conventionally sintered compacts. Similarly, the microwave sintered samples showed better corrosion resistance than conventionally sintered ones.

Characterization of NiCrMo Dental Restoration Alloy

2021 ◽  
Vol 875 ◽  
pp. 373-378
Author(s):  
Ali Haider ◽  
Omar Farooq Azam ◽  
Muhammad Talha ◽  
Saleem Akhtar
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Dental Materials ◽  
Dental Restoration ◽  
Restorative Material ◽  
Nicr Alloy ◽  
In Vitro Biocompatibility ◽  
Dental Prostheses ◽  
Materials Used

Restorative material is a class of dental materials used for direct filling and fabrication of indirect restoration. NiCr alloy is a restorative material frequently used for dental prostheses due to its properties and economic reasons. In present work beryllium free NiCrMo alloy was developed and studied for dental restoration application. The alloy have unique characteristics of resistance to oxidation and biocompatibility; the requisites for dental prostheses. NiCrMo alloy is found to possess mechanical strength and fabrication properties suitable for dental repairs. In this study the developed alloy was tested for its mechanical properties, biocompatibility and corrosion resistance. An in-vitro biocompatibility study was carried out. No signs of toxicity and no signs of cell growth inhibition, in presence of NiCrMo alloy specimen, were observed. Mechanical properties and corrosion resistance are found in the range that is suitable for dental prostheses and easy fabrication.

Engineering Structure and Properties of Materials Used as a Matrix in Diamond Impregnated Tools / Kształtowanie Struktury I Własnosci Materiałów Stosowanych Jako Osnowa W Narzedziach Metaliczno-Diamentowych

2013 ◽  
Vol 58 (1) ◽  
pp. 5-8 ◽  
Author(s):  
J. Borowiecka-Jamrozek
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Structure And Properties ◽  
Hot Press ◽  
Properties Of Materials ◽  
The Mean ◽  
Materials Used ◽  
Hot Press Process ◽  
Scanning Electron ◽  
And Tungsten

The paper presents mechanical properties of materials used as matrices in diamond impregnated tools. Several powder metallurgy materials were manufactured by the hot press process from various combinations of cobalt (Co SMS, Co Extrafine, Co 400mesh), carbonyl iron (Fe CN) and tungsten (WP30) powders. After consolidation the specimens were tested for density, hardness and tensile properties. The fracture surfaces and materials’ microstructure were observed using the Jeol JSM- 5400 scanning electron microscope and the Leica DM4000 light microscope. The main objective of the work was to determine the effects of the mean particle size of cobalt as well as additions of iron and tungsten on properties of the as-consolidated material.

Nanoscale Elastic Imaging of Aluminum/Low-k Dielectric Interconnect Structures

2000 ◽  
Vol 612 ◽  
Author(s):  
G. S. Shekhawat ◽  
O.V. Kolosov ◽  
G.A.D. Briggs ◽  
E. O. Shaffer ◽  
S. Martin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Integrated Circuit ◽  
Nanometer Scale ◽  
Metrological Reliability ◽  
Force Microscopy ◽  
Polymer Interface ◽  
Properties Of Materials ◽  
Materials Used ◽  
Low K ◽  
Ic Test

AbstractA new characterization tool based on ultrasonic force microscopy (UFM) has been developed to image the nanometer scale mechanical properties of aluminum/low-k polymer damascence integrated circuit (IC) test structures. Aluminum and polymer regions are differentiated on the basis of elastic modulus with a spatial resolution ≤ 10 nm. This technique reveals a reactive-ion etch (RIE)-induced hardening of the low-k polymer that is manifested in the final IC test structure by a region of increased hardness at the aluminum/polymer interface. The ability to characterize nanometer scale mechanical properties of materials used for IC back-end-of-line (BEOL) manufacture offers new opportunities for metrological reliability evaluation of low-k integration processes.

Comparison of Mechanical Properties of Fly Ash Artificial Geopolymer Aggregates with Natural Aggregate

2015 ◽  
Vol 754-755 ◽  
pp. 290-295 ◽  
Author(s):  
Alida Abdullah ◽  
Ku Amirrul Rahman Ku Yin ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Kamarudin Hussin ◽  
Mien Van Tran
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Specific Gravity ◽  
Water Absorption ◽  
Raw Materials ◽  
Construction Materials ◽  
High Water ◽  
Natural Aggregate ◽  
Materials Used ◽  
The Impact

This study was conducted to compare the mechanical properties of fly ash artificial geopolymer aggregates with natural aggregate (rock) in term of its impact strength, specific gravity and water absorption.The raw materials used were fly ash, sodium hydroxide, sodium silicate and natural aggregate. After the artificial geopolymer aggregate has been produced, its water absorption, specific gravity and aggregate impact test has been done. All results obtained were compared to natural aggregate. The result shows that the fly ash geopolymer aggregate are lighter than natural aggregate in term of its specific gravity. The impact value for fly ash artificial geopolymer aggregate slightly high compared to natural aggregate while it has high water absorption value compared to natural aggregate. As conclusion, the fly ash artificial geopolymer aggregate can be used as one of the construction materials in concrete as an alternative for coarse aggregate besides natural aggregate with more lightweight properties.

scholarly journals Civil engineering materials

2021 ◽  
Vol 3 (2) ◽  
pp. 154-172
Author(s):  
Furkan Findik ◽  
Fehim Findik
Keyword(s):  
Civil Engineering ◽  
Construction Materials ◽  
Structural Elements ◽  
Structural Members ◽  
Structural Form ◽  
Bituminous Materials ◽  
Number Of Factors ◽  
Material Choice ◽  
Properties Of Materials ◽  
Materials Used

For any construction project to prove satisfactory, it is essential to understand the properties of materials during both the design and construction phases. It is crucial to consider the economic viability and sociological and environmental impact of a project. During this initial design phase, possible alternative locations and a preliminary assessment of suitable construction materials are taken into account. The decision of which structural form and material choice is most appropriate depends on a number of factors including cost, physical properties, durability and availability of materials. Buildings can contain wood, metals, concrete, bituminous materials, polymers, and bricks and blocks. Some of these can only be used in non-structural elements, while others can be used alone or in combination with structural elements. The actual materials used in the structural members will depend on both the structural form and other factors mentioned earlier. In this study, various materials such as metal, timber, concrete floor and polymer used in civil engineering were examined, the properties and usage areas of these materials were examined.

scholarly journals Determination of mechanical properties of materials used for 3D printing

2020 ◽  
Vol 20 (2) ◽  
pp. 190-194
Author(s):  
Josef Sedlak ◽  
Josef Chladil ◽  
Martin Cerny ◽  
Ales Polzer ◽  
Matus Varhanik ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Mechanical Properties Of Materials ◽  
Properties Of Materials ◽  
Materials Used

scholarly journals Pervious Concrete: A Review

2021 ◽  
Vol 1 (1) ◽  
pp. 12-14
Author(s):  
Ramesh Gomasa
Keyword(s):  
Water Management ◽  
Mechanical Properties ◽  
Construction Industry ◽  
Construction Materials ◽  
Special Property ◽  
Pervious Concrete ◽  
Conventional Concrete ◽  
New Type ◽  
Materials Used ◽  
Paper Author

Pervious Concrete is a new type of concrete used widely in the construction industry. It has good physical and also mechanical properties, and it gives good strength. It is used mainly in the water management of the system. So, by using this application, concrete is very famous. There are many advantages to using pervious concrete, and compared to regular conventional concrete, it has some special properties. The special property of permeability. In this transfer or transmission of air or water into the soil or system. This paper author mainly explains the importance and uses, and advantages of Pervious Concrete and explained the Materials used for pervious concrete. This type of concrete is firstly used in Europe afterward, and it can be widely used as construction materials for structures. This paper may help understand Transparent Concrete for everyone easily. It gives a quick review of the Pervious Concrete.

Material Selection of Casing in Gas Well Containing CO2 and H2S

2011 ◽  
Vol 201-203 ◽  
pp. 982-985
Author(s):  
Xiang Zhen Yan ◽  
Bing Shao ◽  
Xiu Juan Yang ◽  
Tong Tao Wang
Keyword(s):  
Corrosion Resistance ◽  
Environmental Conditions ◽  
Material Selection ◽  
Gas Well ◽  
Well Completion ◽  
Properties Of Materials ◽  
Main Factors ◽  
Guidelines And Standards ◽  
Sichuan Region ◽  
Selection Of

Based on analysis of different guidelines and standards for material selection of casing which belong to six companies in four countries, the main factors that influence the material selection of casing have been generalized. Through comparing the safety and corrosion resistance properties of materials recommended by different guidelines in specific conditions, a synthetic guideline has been developed, which can provide a more appropriate suggestion. The environmental conditions and materials adopted in East Sichuan region have been taken for example. By comparing the proposed results with adopted materials of field well completion, it demonstrates that the result provided by the synthetic guideline is accurate and reliable.

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