WHY Titanium? and powder metallurgy?

1. WHY is Titanium used for orthopedic and prosthetic implants??? If possible, list down all of the properties of Titanium.





2. What is the requirements for a material to be used as hip-joint material ??? Next, match the properties of Titanium with the requirements.





3.What would be the advantages and disadvantages of powder metallurgy?





4. Cite the best method for the production of


a). Gold ear-rings (investment casting?)


b). Pipe Connection (sand casting?)


c). train rail (continuous casting?)


d). large engine block for a truck (die casting?)

WHY Titanium? and powder metallurgy?
I think if you want a course in metallurgy you should go and pay for one.
Reply:Relatively inert and not too susceptible to oxidation. One would not want to make a material that performs catalysis/reactions in your body.


Lighter than most other metals. One would not want to have something that is so freaking heavy in the body.


Not magnetically active. Other one wants to be like Magneto of X-men. :P


Relatively strong. Does not crumble easily.


Price of Titanium is relatively acceptable compared to other materials.
Reply:seeing you got answers for the others





4. Cite the best method for the production of


a). Gold ear-rings (investment casting?) yes


b). Pipe Connection (sand casting?) yes or just machined from stock


c). train rail (continuous casting?) yes extrusion


d). large engine block for a truck (die casting?)nope, sand cast No way could you diecast a large engine not counting you can't die cast steel/iron.








Are you happy now we did your homework for you?
Reply:Titanium (IPA: /tʌɪˈteɪniəm/) is a chemical element; in the periodic table it has the symbol Ti and atomic number 22. It is a light, strong, lustrous, corrosion-resistant (including resistance to sea water and chlorine) transition metal with a white-silvery-metallic color. Titanium can be alloyed with other elements such as iron, aluminium, vanadium, molybdenum and others, to produce strong lightweight alloys for aerospace (jet engines, missiles, and spacecraft), military, industrial process (chemicals and petro-chemicals, desalination plants, pulp and paper), automotive, agri-food, medical (prostheses, orthopaedic implants, dental implants), sporting goods, and other applications.[1] Titanium was discovered in England by William Gregor in 1791 and named by Martin Heinrich Klaproth for the Titans of Greek mythology.





The element occurs within a number of mineral deposits, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere, and it is found in almost all living things, rocks, water bodies and soils.[1] The metal is extracted from its principal mineral ores via the Kroll process.[2] Its most common compound, titanium dioxide, is used in the manufacture of white pigments.[3] Other compounds include titanium tetrachloride (used in smoke screens/skywriting and as a catalyst) and titanium trichloride (used as a catalyst in the production of polypropylene).[1]





The two most useful properties of the metal form are corrosion resistance, and the highest strength-to-weight ratio of any metal.[4] In its unalloyed condition, titanium is as strong as steel, but 45% lighter.[5] There are two allotropic forms[6] and five naturally occurring isotopes of this element; 46Ti through 50Ti with 48Ti being the most abundant (73.8%).[7] Titanium's properties are chemically and physically similar to zirconium.