Maraging steels derive their strength from the following mechanism:
A fine, highly dislocated and strong martensite
Fine dispersions of inter-metallic of Fe, Ni, Ti etc
Fine dispersions of alloy carbides in a ferrite matrix
Fine dispersions of 
C nucleated on dislocations in austenite
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- Babbitt lining is used on brass/bronze bearings to increase the
- Electrochemical corrosion can occur, only if __________ is present in contact with metal.
- __________ has the highest melting point out of the following.
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- In the blast furnace, incorporation of water vapour in the blast gives the following effect.
- Normalising of an object does not
- Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent…
- Case hardening of a material is
- A highly elastic material is deformed least on loading and retains its original form on removal of the…
- Increase in temperature, in general results in the
- Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.
- __________ cannot increase the fatigue strength of a material.
- Minimum thermal efficiency of a steam boiler may be around __________ percent
- Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
- Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.
- With increase in temperature, the electrical conductivity of semiconductors
- Tumbling is the process of improving the __________ of the materials/parts.
- Powder metallurgy process does not make metal powder by
- Use of flux during soldering is done to
- A solar cell converts the sunlight directly into __________ energy.
- A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.
- Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses…
- Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other…
- Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles…
- At the point of boundary layer separation in fluid flow, the
- An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform…
- The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is…
- Consideration of the creep is the most important in case of the
- Heat release during phase change is observed in case of a/an
- Blow off cock is provided in steam boiler to