Alloy

Figure 5. Stray current corrosion of a micro wave module for 24 GHz used in a control equipment. Behavior of an active-passive metal: Behavior of metals is divided into three zones. They are as following 1) Active 2) Passive 3) Transpassive Metal or alloys which initially demonstrates behavior…

Tin is a Chemical element its symbol is Sn. Its location on the periodic table of elements is period 5 group 14. Its atomic number is 50 and the atomic weight is 118.71. It has 50 protons, 50 electrons, and 69 neutrons. Tin is a solid, ductile, malleable, silvery-white metal. Tin melts at a low temperature of about 232 °C (450 °F). Tin resists corrosion from water, but can be attacked by acids. Around 5000 years ago, humans first began mining and incorporating tin with copper to create bronze…

in this study is about using variable frequency eddy current sorter (VFECS) prototype to separate different nonferrous metal and alloy of size smaller than 1 inches. VEFECS is a solid state technology which operates at variable high frequency range between 1 – 10 KHz. The magnetic field frequency plays an important role in sorting of different nonferrous metals and alloys from each…

the formation of sulfur and iron atom-rich core and Pt-rich shell. Those structures could form more favorable compressive strain on Pt because of the contraction by binary alloy of Fe and S in the core. The apparent positive effect of PtFeS core–shell structure enables convenient tuning of the geometric properties of Pt in the alloy…

hardness of 101.833. The top candidates, due to the HRB scores being the closest to the experiment are listed below, 1. Cobalt Alloy 80.0-116 2. Copper-Cobalt-Beryllium alloy, UNS C17500 98.0-103 3. Stainless Steel 37.0-130 4. Beryllium Copper, UNS C17000, TD04 Temper Strip 96.0-102 5. Medium Carbon Steel 71.0-112 6. AlSl 800 Steel 102 7. Tungsten Alloy 32.0-110 8. Silver Alloy 35.0-102 9. Materion Brush 60 ¾ HT 98.0-103 10. Chromium-Copper UNS C17600…

In this lab we took a dull penny from before the year 1970 and changed its color to a shiny gold with the help of chemistry. First, we used a vinegar and salt mixture and scrubbed it onto the penny. This process cleaned all of the dark corrosion spots away and made the copper color shine like new, which then allowed us to have a clean surface to experiment on. This was mostly a physical change but their was a slight chemical reaction because of the acidity of the vinegar. We then heated granular…

medical device used for partial hip replacement surgery. The Birmingham Hip Resurfacing device is used to provide stability and mobility for patients with hip pain and joint deterioration. The implant contains two parts, both made of Cobalt-Chromium alloy. The top portion of the implant is spherical, which looks like half of a ball, with a thin cylindrical stem that branches out of the spherical piece. The parts are the acetabular cup and the femoral head. Discussion Acetabular Cup The…

Study of Stress Corrosion Cracking (SCC) in Alloys Jiang Jingxing 1. Introduction of Stress Corrosion Cracking Stress Corrosion Cracking (SCC) is the growth of cracks with a under the combined effects of a static stress and a specific chemical environment. All SCC failures involve a macroscopic brittle performance, and the ductility of the material is reduced. It is universally acknowledged that there is no single mechanism for stress corrosion cracking (Ford, 1984). Stress…

CHAPTER 1 INTRODUCTION 1.1 Introduction Towing is a process of transporting or relocating the vehicle desired from one place to another. The process of towing may become essential whenever engine failure occurs of the vehicle or the trailers that are meant for transport are to be shifted from a place to another. So it is important to design a proper towing hook that is capable of withstanding various loading condition without any failure for long life. Also tow hooks are used to transport…

The above graph shows temperature of Sn0.3Ag0.7Cux In alloy as a function of indi-um weight percentage. Initially with no traces of Indium, the solidus temperature & liquidus temperature are 219.40̊C and 241.70̊C. It clearly shows that the temperature range goes wider as the concentration of indium is increased [6]. This is not a cost effective solution as indium is very costly. Titanium oxide nano particles addition led to temperature changing from 217 to 217.64 degree Celsius [7]. Zinc oxide…