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 Categories >> Engineering >> Metallurgy
 
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HOW TO GET LAST 10 YRS. QUESTION PAPERS ongc   0  791
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.    4  4932
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?    0  670
any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material. novellus   0  671
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. novellus   0  805
what are the ores of copper?    4  2779
i m going to give an interview for iocl on 5th aug . pls tell me what questions can be answered from metallurgical prospect iocl   0  1380
What metal would be better suited for heat transfer, reliability, and cost...??? I'm currently using Aluminum for a 'hot-wedge'.    3  2818
Please send me the comparision of Mils Steel Specification as per BS EN 10130 & IS 2062    1  1667
what happens when a EM wave is transmitted    1  2536
what is the cause of attenuation due to powerloss    1  2245
What are the superalloys used for?    2  2354
What are the superalloys?    3  5132
Why is non-destructive testing necessary?    9  7533
What kinds of NDT methods are available?    9  8284
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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. 805
i need manual solution of diffusion in solid(shewmon) if you have plz send for me. tank you my email : alloymail@gmail.com 2685
how can i prevent the backfire occurrence in copper shaft furnaces? 1005
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 896
What happens to the microstructure during service exposure? 820
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? 2930
white rust formation over zinc plated and passivated fasteners during CED coating. WHY? 2533
What is the chemical composition of FCVS350 ? 1877
Any body know when the medicals are starting for the BSI P.O , if anybody got any call letter please let me know 547
What are the componentsof SCS14 ? 1680
what are the causes of scaling in cast iron, after subjecting it to annealing process. 927
How to melt the solidified copper accretions in copper scrap melting furnace? 1052
What is the difference between DI pipes, Cast Iron pipes, LA Pipes, SW pipes, SWR Pipes, RCC hume pipe, RCC spun pipe ? What are their IS codes and applications ? 2784
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) 856
sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you 604
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