Stainless steel is a type of alloy that has a very strong lattice structure (an arrangement/ shape of the crystals or other objects) which in some case can be more beneficial than others depending on the type of application it may be used for. In many cases this structure will make the material more suited to being used in engineering applications such as tools for instance a hammer (stainless steel alloys) , also they can be used for gears, engines, electrical motors and hydraulic systems because the structure makes the material so strong. So when the arrangement of the structure is as above it makes the overall material even stronger which makes it a good for all the applications stated above. I believe its strength and durability are its …show more content…
It is used for these properties because the components such as gears need to be strong in order to keep transferring and altering the rotary motion and torque exhibited in the machine that it may be used in, durable to withstand any loads or pressure put onto it and also corrosion resistance to give the components a bigger life span and increase its rate of work throughout its required use. Polymer-Polyethylene is partially crystalline as well as amorphous because it has crystalline and amorphous regions. Also it has linear chains so this is the simplest structure compared to a branched or network chain. This can be of an advantage to it over other types of materials as its good toughness and elongation makes it very significant in the engineering industry as it can be moulded or extruded into shapes such as pipes which are made of HDPE. Polyethylene is a thermoplastic so can be remoulded, which means if the application loses shape it can be remoulded back into shape or even into a different component …show more content…
At cold temperatures nitinols atoms can be arranged in a way which is called martensite, but when it is a higher temperature it will be a slightly different arrangement and is called austenite. Nitinol is an alloy of nickel and titanium. They can be used in engines and couplings in aerospace applications due to the useful properties such as it being a smart material (ability to return to its original shape when heated). Its corrosion, heat and impact resistance also makes it very significant in the aerospace industry as this can be very good for many components or even machines, these would replace many more parts but they deform into their original shape when heated so for many parts that have to withstand very high amounts of heat it would not be capable of the task needed as it would change shape. Meaning that it is limited to jobs which don’t need a very high heat resistant but this still leaves many applications for it to be used in. Although it is a very abrasive material to machine it has so many advantages that make up for the disadvantages. It is very hard to make because of the tight compositional control needed and also the reactivity of the titanium. Fatigue failure has been known to occur with nitinol because of the extreme amounts of fatigue strain that it is necessarily exposed to. This is because it is still not completely defined how durable nitinol is, so it
Glass transition is not the same as melting. Melting (or freezing, or boiling or condensation) undergoes a change in heat capacity and a latent heat is involved or in another term, melting is a first order transition that only occurs in crystalline polymers. However, for glass transition, it is a second-order transition that only occurs in the amorphous polymers and does not involve latent heat since amorphous polymers have a relatively weak intermolecular forces that bond them together and can be broken once heat is applied whereas crystalline polymers have a strong primary (cross-linking) covalent bonds. Glass transition temperature and melting temperature can occur in the same process because in a semi-crystalline polymers, both amorphous and crystalline regions exist where the amorphous polymers undergo only the glass transition and the crystalline polymers undergo only
...stainless steel and Co-Cr alloys which results in poor rigidity. Alongside this, titanium is a light material which would make it difficult to see under x-ray imaging (Hanawa, 2009).
Titanium exhibits a variety of mechanical properties that allows it to be used in different applications. Titanium is extremely resistant to corrosion especially when in close proximity with different media such as human bone, synovial fluid and plasma. This is achieved through the use of a stable and insoluble oxide film that strongly adheres to the surface of titanium. Research has shown that titaniums resistance is considerably better than
A wide variety of coating alloys and wrought alloys can be prepared that give the metal greater strength, castability, or resistance to corrosion or high temperatures. Some new alloys can be used as armor plate for tanks, personnel carriers, and other military vehicles.
This article is about an experiment done to try to see if Aluminum can cause resistance in potatoes to a disease. Aluminum is commonly found in arid soils which accounts for 35% of all farmable on earth. The aluminum (specifically Al3+) targets the roots of the plants and causes stunted plant growth and abnormal root formation. THis causes stresses in the plant which could lead to cross resistance. This immunity has led to some plants to develop cross resistance to diseases. THis has happened before in the plant, an example is the fact that ozone induces resistance to the tobacco mosaic virus in tobacco plants. This phenomenon is what is being tested for in potato plants. Potato plants will be subjected to infections from Phytophthora
The stainless steel columns seem to have been made by casting and then polished to achieve their current look. Casting is an artistic manufacturing process by which hot liquid materials are poured into a mould and allowed to sit until cooled and solidified. Then the Mould is taken off of the art piece or broken off the art in some cases. This method is used because of the difficulty that would arise from having to figure out how to manipulate materials such as steel or aluminum that are very hard to work
These include, high strength, low weight, high chemical resistance and high cut resistance. This material does not corrode or rust and is also unaffected when placed in or under water.
These kinds of polymers have both some advantages and disadvantages. Although they are bioactive and biodegradable and provide high comppressive strength, Degradation of such polymers leads to undesired tissue response due to producing acid formation in degradation process. Metallic scaffolds are another method for bone repair and regenaration. They provide high compressive strength and enormous permanent strength. Metallic scaffolds are mainly made of titanium and talium metals. The main disadvantages of metallic scaffolds are not biodegradable and also discharge metal ions. Recent studies in metallic scaffolds mainly focus on biodegradable materials which can be used improve bioactivity of metals such as titanium.
The aim of this discussion is to examine how the groundbreaking introduction of economically variable steel impacted Louis Sullivan’s overall design Scheme. The discussion will explore steel and the benefits it carried with it. Furthermore, the discussion will examine Louis Sullivan’s contribution to high-rise steel construction and what other where doing in the same period, comparing it to his innovative Wainwright building, in St. Louis (1890). The discussion will focus on and analyze an article published by him in 1896 ‘the tall office building artistically considered’, of how ornamentation and structural mass become one. With this, we can apply this philosophy of ornamentation to the Wainwright building. Through this exploration one hopes to gain a better understanding of how influential the introduction of Steel was to Louis Sullivan’s Scheme of creating a new American Architecture.
Polyethylene (PE) is one of the most commonly used polymers which can be identified into two plastic identification codes: 2 for high-density polyethylene (HDPE) and 4 for low density polyethylene (LDPE). Polyethylene is sometimes called polyethene or polythene and is produced by an addition polymerisation reaction. The chemical formula for polyethylene is –(CH2-CH2)n– for both HDPE and LDPE. The formation of the polyethylene chain is created with the monomer ethylene (CH2=CH2).
Stainless steel, especially, Austenitic stainless steel, because of their high corrosion resistance and customizable mechanical properties has become an indispensable part of the regularly evolving modern day technology. Stainless steels of various grades find applications in numerous fields starting from the household to the nuclear reactors; from food and beverage cans to construction of different automobile parts. The formation of impervious oxide layer on the surface makes it suitable for use in adverse environments such as sea water.
I. Martensitic stainless steels have good mechanical strength and are moderately corrosion resistant. Because of their excellent corrosion resistance and mechanical strength, martensitic stainless steels are used for manufacturing the steam turbine blades, heat exchangers, automotive components and structures, petrochemical & process piping. Properties of martensitic stainless steel can be changed by the heat treatment. Increasing productivity of any welding process while maintaining or even improving the weld quality has been the task of researchers in the field of development of welding processes. Over the years, welding methods and techniques have developed to great extent [3].
Carbon blades are tougher than stainless steel, but they are highly susceptible to rust and stains. They're also more difficult to sharpen, but they don't dull nearly as easily as stainless steel.
Duplex stainless steels is a combination of many of the beneficial properties of ferritic and austenitic steels. First duplex steel grades had a great performance characteristics as well as limitations. The metallurgical processes at that time were not suitable for producing grades with the right austenite-ferrite balance. These early duplex steels were also high in carbon content because of the unavailability of efficient decarburization techniques. Because of these limitations the products using this materials were limited to specific applications. (Alvares-Armas, 2008)
Polyethylene is a polymer that is made of a long chain of CH2 monomers bonded together. It is one of the most commonly used polymers in everyday items. Grocery bags, soap bottles, children’s toys, and even bullet proof vests are all made from polyethylene.2 This polymer is very versatile and can be used in many materials but this all depends on the way that the polymer is chemically made or enhanced. There are many different types of polyethylene classified by density and branching. 2