Please be careful.
Many plastics contain low molecular weight polymers to improve the plastics viscoelastic behavior during processing. Over time, these can leave the plastic and coat some cooler surface. The best examples are the low-molecular weight vinyls in many automotive applications...
Wow! That's a new one. I'll be interested in the answer, too.
My guess is that it is a nickel-chromium-molybdenum alloy. But would it be a superalloy or just a moly bearing stainless steel.
The magnitude of the residual stress can be reduced by heating because the maximum residual stree that can be locked in a body is the yield strength of the material. As you heat the body, the yield strength decrease and so will the residual stress.
There have been reports that vibrations at...
You were, in a small way, lucky.
Never, but never, use a diamond wheel to cut a ferrous product. The iron and the diamonds will react to form an iron-carbide. The wheel will be ruined. How do I know? I blush ...
Use cubic boron nitride instead.
(Why did the guys in the tool crib allow you...
Philip A. Schweitzer's book, "Corrosion Resistance Tables," has some data on the corrosion of a few stainless steels at a few Cl concentrations as a function of temperature.
A better reference might be the ASM's Metal Handbook, volume 13, titles "Corrosion." It has a...
It was invented in 1919 by a metallurgist named Stanley F. Rockwell.
There is a library of technology at MIT (the Bitmer(?)) which might have the info you want. Then, again, you might want to check with the manufacturer, the Wilson Instrument Diivision of the American Chain and Cable Company...
Hard copy data is available in ASM International's Metals Handbook, Volume 2: Properties and Selection: Nonferrous Alloys.
Many aluminum alloys are heat-treatable, so you generally need to know what condition (the pros call it "temper" designation) the alloy is in to know what its...
Be careful in your selection of a metal to be next to wood. Wood is NOT a passive element. It gives off organic acids over time and the result can be devastating. A "museum of bullets" made its display cabinets out of wood only to find that all the lead cartriges soon formed a...
I would suggest a little experiment. Get one of the water filters used by back-packers (the "Katadhyn" sp? is best) which are used to filter out giardia and lung-worm cysts and see what if anything it picks up.
Because of "static fatigue" in a water envirnoment, the glass...
Trethewey and Chanberlain in "Corrosion for Students of Science and Engineering," page 112, give the fre corrosion potential of Ni200 in sea water as -0.1 to -0.2 Vsce and that of Ag -0.1 to -0.15 Vsce.
MCGUIRE is right. The squeal you often hear in machining an austenitic stainless steel is due to the strain-induced transformation of the austenite to the very much harder nartensite.
"Electroless Nickel" deposits are often in the form of a hydrided nickel, which should be harder and, hence, have better wear resistance than pure nickel.
An interesting problem because it is generally recognized that copper is much more corrosion resistant than iron.
One possibility might be to use a nitric acid solution sufficiently strong to passivate the iron but attack the copper.
Other possibilities:
hydrocyanic acid (ugh!)
hot...
There are a number of different processes that are used to galvanize steel.
Often lead is added to prduce a smoother finish. Aluminum is added to reduce the iron-zinc difusion zone. Cadmium should be expected as either an additive or as an impurity.
Better answers can be gotten from the...
A post-script to the previous response.
These days the Jominy curve for a steel can be calculated from knowledge of the steel's actual (not spec'ed) composition and its austenitic grain size. See the current ASTM spec for the technique.
