dear sir
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: alloymail@gmail.com
Why same casting has different hardness and machineability
properties? One spot it is found hard for machining and
another spot soft? It is FG 260 grade for Cast Iron.
i want to go to US for Bachlore of computer science, I
didn't appeared for SAT. my ielts scores are too low only
5.5 band and I am confused if VISA OFFICERS will ask why u
hadn't given SAT. what i have to answer pl suggest?
Why do the Gamma Prime and Gamma Double Prime phases play
such an important role in promoting strength in the
superalloys?
219
dear sir
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: alloymail@gmail.com
145
Why do some of the latest 'single crystal' superalloys
contain concentrations of the grain boundary strengthening
elements, e.g. carbon and boron?
139
What special precautions need to be employed if a powder
metallurgy route is chosen?
160
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.
i want to go to US for Bachlore of computer science, I
didn't appeared for SAT. my ielts scores are too low only
5.5 band and I am confused if VISA OFFICERS will ask why u
hadn't given SAT. what i have to answer pl suggest?
222
Isn't power metallurgy an expensive processing route to
employ?
197
What happens to the microstructure during service exposure?
157
Why are the superalloys sometimes subjected to secondary
melting processes?
along with your userid / name. ThanQ
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