Ok, here is the high level fly-by, and we can drill deeper if anyone wishes.
Iron and iron base alloys (steel) have multiple crystalline structures bases upon temperature, heat treat, alloy, and some other lessor facts. The crystalline structure of iron compounds that is magnetic is called Ferrite. When you heat Ferrite to the Curie point (temperature), the crystalline structure changes from Ferrite to Austenite. This also changes the shape and electron structures within the crystals. Austenite is NOT magnetic. hence, when you heat a magnet to the Curie temperature, it loses it magnetism.
So, why does it lose it's magnetism? Again, has to do with the electrons in the Fe (Iron) atoms, the crystalline structure, and the orientation of the spin of the atoms. When the orientation of the electron spin in the crystalline structure is aligned (through the magnetic field, ie. magnetic charging), the iron or iron alloy retains and produces a magnetic field (measured in magnetic moment, which is Newton-meters (Joules)/Teslas, basically a vector. It can also be measures as Gauss) Basically magnetism is measured by the amount of torque per Tesla
North and South poles on a magnet, can be explained in very simple terms that the electron spin alignment is 180 degrees opposite or "out of phase" for the magnetic dipole (poles).
so, to fully simplify, the electron spin orientation within the Fe crystals produces the magnetic field. Changing that crystalline structure through heat or magnetic induction, will modify the magnetic field produced. The various crystalline forms of iron are called Allotropes.
If you would like the math and more information such as specific crystalline geometry, we can continue. Remember, iron and iron alloys all have a crystalline structure. Heat treating and alloy components effect the crystalline structure and subsequently the magnetic and physical characteristics of metal.
Hope this provides a basic answer to your question. 8)
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
