When austenitized, carbon steel is quenched, why is the bcc crystal elongated into a body-centered tetragonal crystal structure?

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What is the chemical composition of ceramics?

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What metal would be better suited for heat transfer, reliability, and cost...??? I'm currently using Aluminum for a 'hot-wedge'.

3 Answers  

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any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material.

0 Answers   Novellus,

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where do i get previous question papers of metallurgy?

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What kinds of NDT methods are available?

10 Answers  

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What are the advantages of projection welding over spot welding

0 Answers   NIC,

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When using mercury to recover very, fine gold from ore, define what is the best way to separate the gold laden mercury from the ore?

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For the same part, it is possible to Specify the two different type of Hardness with same scall(EX-Quenching and tempering==>450 to 500HV30 & Hardening and Austempering 330- 380HV30)

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How is solution annealing carried out? What type of furnace is required?

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1)We are using OHNS material for manufacturing Thread & plain Gauges.What is the excat composition of OHNS for Gauges? 2)Which is the reference standard book for OHNS Material composition for Gauges?

0 Answers   Sail,

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What is the Equivalent for 9.81 kgf= ?

0 Answers   NIC,

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