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-
Witch type curome oxide in ms matle?
i need some information about prevent eutectic carbide
network(as cast) formation in 12% cr steel casting by
another alloying element(my analays: c=1.2-1.4 cr=11-13
mo=0.2-0.4 ni=0.2-0.4 )or break network carbid after
formation in solidification by heat tretment
please help me
my email adress: email@example.com
where do i get previous question papers of metallurgy?
Why are the superalloys sometimes subjected to secondary
What happens to the microstructure during service exposure?
What are the componentsof SCS14 ?
I currently use 17-7 PH stainless which is hardened to
condition CH after forming. raw matl is .1.75"X .12"
X .008". Its main usage after hardening is silicon wafer
retainer where it's contantly cycled up and down to putin
and remove wafer after 40-60 sec process at 400C temp. At
this high temperature this part seemed to deform after a a
couple of hundred wafer which is what it was designed for
in the first place. THere is a proposal to go to a
different material to increase lifeline of this part. My
question is..... can 321 SST be a plugin replacement. I
know this has a higher temp rating but how about its
forming characteristics, will it have spring properties,
and wont become brittle after prolonged exposure to 400C.
white rust formation over zinc plated and passivated
fasteners during CED coating. WHY?
1)We are using OHNS material for manufacturing Thread &
plain Gauges.What is the excat composition of OHNS for
2)Which is the reference standard book for OHNS Material
composition for Gauges?
how can i prevent the backfire occurrence in copper shaft
Why do some of the latest 'single crystal' superalloys
contain concentrations of the grain boundary strengthening
elements, e.g. carbon and boron?
what are different grades of mild steel available for making
machine structure (housing)
What is chemical composition and mechanical properties of
IS 2004,Gr-3 and IS 305 AB-2?