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Q. Define corrosion-resistant nickel-based alloys?
The corrosion-resistant nickel-based alloys offer a significant improvement in corrosion resistance to sulphuric acid over the 300 series stainless steels. A broader range of concentrations can be handled; however, temperature is still a limiting factor.
A number of corrosion resistant nickel alloys are commercially available. The Iso-Corrosion Charts for several common alloys. Each alloy typically has its own advantages. In selecting a specific alloy for a given service, some in situ corrosion testing is recommended.
Alloy-20 (Carpenter 20Cb3) and Incoloy 825 are two readily available commercial nickel-based alloys that have superior corrosion resistance to a broad range of H2SO4 concentrations. Higher nickel-based alloys, such as Hastelloy B, Hastelloy C / C276 and Hastelloy G, also offer excellent resistance to H2SO4.
Q. Describe about Carbon Steel? Steel having no specified minimum quantity for any alloying element (other than commonly accepted amounts of manganese, silicon, and copper) and
(a) Classify the two wheeler engines. (b) Define the following components and their uses in engine with the help of engine diagram. (i) Crankcase (ii) Piston and Piston pi
MODIFICATIONS REQUIRE FOR A ROAD CAR TO ENTER A HILL CLIMB
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