Layer form is complex new material of freeboard carbon steel

The steely material of 1% , exceed high-carbon steel namely, have substaintial brittleness and be worth without development price. So, freeboard carbon steel is eliminated for a long time to be besides practical project material. However, from 20 centuries since 70 time, with the O of American Stanford university.

D.

The metallurgy home that Professor Sherby is a delegate people discovery, exceed the brittleness of high-carbon steel material, because its are tall,be carbolic content is in what avoid carbon hard in the caky process below condition of groovy foundry technology slant the formation of analyse and bulky carbide, and also avoid what place of bulky carbide network causes separate out of austenite crystal boundary hard in groovy hot-working craft. If can avoid carbon slant analyse makes the organization is refined adequately reach change equably, freeboard carbon steel can acquire high strenth and the admirable and mechanical property that certain plasticity combines suitably completely. In fact, the Damascus sabre that is in thousands of years early to appear before, be record in annals with its sharp the crucial point and beautiful exterior, use freeboard carbon steel namely (carbolic content is 1.

5 ～ 2.

0% ) those who make, manufacture technology regrettablly already be lost. The person such as Sherby discovers, refine through the organization with change equably, the extra high strength that carbolic steel can gain freeboard to have steely stuff more than not only and the exceedingly good and mechanical function that plasticity of certain pliable but strong combines suitably, and can obtain what astonishing outspread ratio is as high as 600% above to exceed plasticity. The discovery of the person such as Sherby makes freeboard carbon steel becomes a new material to study heat, become the new-style high strength with cheap development the important research target of steel. However, although gain extra high strength easily,exceed high-carbon steel, but accomplish hard quite in the respect of plasticity of pliable but strong that keeps good, need very complex craft processing, can increase its to produce cost from this, restrict its market application. Better the freeboard carbon steel that has extra high strength and tenacity other material union rises, the composite material that preparation has high strenth to have plasticity of enough and good pliable but strong again already is a serious train of thought. Now, already the report exceeds high-carbon steel and solid of other black metal to solder rise wins layer account is compound exceed high-carbon steel. The method that this kind of composite material uses the solder that fold make friends normally and obtain, be about to the freeboard carbon steel of three-layer or three-layer above and mild steel fold make friends seam to rise below in A1 temperature. Seam temperature shoulds not be exorbitant commonly, in order to prevent a layer piece what interfacial place produces carbon is migratory diffuse, what and avoid exceed high-carbon steel grain is grown. Layer form is complex the biggest advantage that exceeds high-carbon steel is to have tall concussion tenacity, be more than its material of any a kind of composition, and brittleness transition temperature is very low, for example, 12 freeboard carbon steel - mild steel composite material (every kinds of material each 6) brittleness transition temperature is - 140 ° C. As a result of,this basically is layer piece interfacial place can prevent crackle effectively to expand, make crackle most advanced passivation. Layer form is complex exceed high-carbon steel succumb intensity accords with mixture law, when close of plasticity of two kinds of material, its plasticity also follows mixture law. But, differ when both plasticity bigger when, layer form is complex the plasticity that exceeds high-carbon steel the result under mixture law, the inchoate crackle that this as may poorer as plasticity material produces is concerned. Through adding an account a number of layer of steel of compound freeboard carbon, reduce a layer piece ply, can raise plasticity further. The experiment proves, steel of compound freeboard carbon also has layer state exceed plasticity, exceed high-carbon steel concentration percentage by volume number is larger, layer a span is smaller, exceed plasticity to had been jumped over. CNC Milling CNC Machining