Vim li cas Kamascus riam ntau ruaj dua li ib txwm muaj cov roj carbon wircase?

1, sib xyaw cov qauv khoom siv: ib qho kev siv tshuab txuj ci tseem ceeb ntawm kev sib txuas nrog rigidity thiab yooj
Cov tseem ceeb kev sib tw ntawm Damascus riam nyob rau hauv nws cov qauv khoom sib xyaw ua ke. Cov txheej txheem ib txwm siv hloov cov quav folding ntawm UZI steel hlau, thaum muaj 1% roj carbon monoxide, thiab 15% chromium) thiab vg2% npib tsib xee thiab 1.2% tooj liab). Cov qauv no ua qauv rau cov qauv gradient: cov txheej tawv (HRC60-62) muab cov txheej tawv (HRC45-50) nqus tej yam cuam tshuam lub zog thiab tiv thaiv kev tawm tsam.
Kev sim cov ntaub ntawv qhia tau hais tias txoj kev damcus tuaj yeem tiv thaiv qhov deformation ntawm 78 degrees tsis muaj kev sib tsoo thaum lub sij hawm tom qab kev kuaj, kev txwv ntawm cov roj carbon ob leeg. Nws cov bending lub zog ncav cuag 361 phaus ib square centimeter, uas yog 1.8 zaug ntawm 440c stainless hlau. Cov xeeb ceem no tshwj xeeb tshaj yog kev siv rab phom tua phom, thaum txiav cov ntoo tawv nqaij, thaum txiav cov ntoo muaj zog los ntawm cov pob zeb sib txawv, ua kom muaj cov roj ntsha
2, Cov me me Soob Stys: ntev -} kav ntev ntawm nanoscale tej units
Lub microstructure ntawm cov hniav ntug ntawm lub Damascus riam nthuav tawm ib qho tshwj xeeb "me me Soobsij" MotionCic Soob "Feature. Los ntawm kev xa hluav taws xob electron microopy kev soj ntsuam, cov hniav dos yog tsim ntawm cov txheej txheem ntawm 0.2-0,5 micranness, thiab cov pa roj hmab sib txawv los ntawm 0.3% -0.8%. Cov ntaub ntawv Gradient Gradient Electric me li cas
Kev ntsuam xyuas sib piv tau qhia tau tias tom qab txiav hardwood nrog txoj kab uas hla ntawm 503mm, thaum D2 carbon hlau riam muaj kev hnav khaub ncaws 0.12mm nyob rau tib qho kev mob. Qhov sib txawv no yog vim tus kheej hliav mechanism ntawm micro serrations: thaum lub ntsej muag tawv ntoo nyob rau hauv txheej sab hauv yog nthuav tawm, tsim cov chav txiav tshiab. Nyob rau hauv kev sib piv, ib qho kev tiv thaiv cov roj carbon hlau tsuas tuaj yeem rov qab los ntawm kev sib tsoo zuag qhia tag nrho tom qab hnav, ua rau muaj kev pabcuam luv luv.
3, Txheej txheem kho cua sov: kho kom tswj tau ntawm quenching thiab tempering
Lub durability ntawm lub Damascus riam yog qhov tseem pheej nyob ntawm kev tswj hwm cov txheej txheem kub. Lub siab - Cov kab mob Deascus zoo heev, thiab tom qab ntawd kawm tiav qib siab ntawm 20℃/ thib ob los ua ib qho martensitic martensic li qub; Tom qab ntawd, sab hauv kev ntxhov siab yog muab tshem tawm los ntawm tsawg - kub ntawm hrc60 (feem ntau 8 joules rau carbon ob leeg riam).
Tus yuam sij rau cov txheej txheem no dag hauv kev sib npaug ntawm kev sib cav ntawm lub hardness thiab tawv. Tib neeg cov roj carbon hlau feem ntau siv ib qho nruab nrab quenching mus caum hardness (hrc 62+}), tab sis nws yog ib qho mus rau micro tawg. Txoj kev riam Damascus ib daim teb kev ntxhov siab uas muaj qhov sib txawv ntawm cov txheej txheem sib xyaw ua ke ntawm cov txheej txheem steel (}}} X-ray txawv tsom xam pom tias lub compressive kev ntxhov siab tus nqi ntawm kev txiav yog -280 MPa, uas yog 2.3 lub sij hawm ntawm cov thawv carbon hlau.
4, ib puag ncig kev yoog raws: ib tug peb {{{1} seem kev tiv thaiv system rau kev tiv thaiv corrosion
Lub corrosion tiv taus ntawm Damascus riam yog los ntawm cov khoom lag luam me me ntawm cov khoom tsim thiab kev kho deg. UZI STEEL siv hauv cov txheej txheem ib txwm muaj muaj 0.5% -1.2% chromium, thaum ntxiv molybdenum (1.5% -2%) thiab npib tsib (2% -3%). Electron Spectroscopy tsom qhia hais tias qhov tuab ntawm chromium oxide ntawm nws qhov chaw nyob ze 80-120 lub sij hawm ntawm 440C stainless hlau thiab tuaj yeem thaiv cov chloride ion nkag.
Hauv kev tshuaj ntsev ntsuas, lub sijhawm rau xeb kom tshwm rau saum npoo ntawm lub Damascus riam yog 4.8 zaug ntev dua li ntawm cov pa carbon riam (240 teev vs 50 teev). Qhov sib txawv no yog vim nws qhov tshwj xeeb "foldeded corrosion tiv thaiv" me ntsis txheej corrodes, cov txheej txheem sab nraud uas tau txais, sib sau ua ib qho kev tiv thaiv kev tiv thaiv kev sib cav sib ceg. Tsis tas li ntawd, cov qauv convave convex ntawm cov qauv kev ua qauv tuaj yeem khaws cov nqi ntawm lubricating roj lubricating, ntxiv txo qhov sib txhuam cov coefficient thiab hnav tus nqi.
5, Daim Ntawv Thov Tso Cai Scenario Qhov Peev Xwm: Ua kom muaj kev ua tau zoo los ntawm ib puag ncig loj heev rau kev siv txhua hnub
Thaum lub sij hawm polar kev ua ntej hauv Alaska, pab pawg tshawb fawb tau ua piv txwv ib yam nkaus pob ntawm Damascat thiab Carbon Steel riam rau 18 lub hlis. Cov txiaj ntsig qhia tau tias:
Txiav effecticiCi: Damascus riam tswj cov hniav looj tes ntawm 0.3mm / sijhawm thaum ua cov nqaij khov kho, thaum cov pa roj carbon Riam lawm
Kev Cuam Tshuam: Thaum siv cov ntoo khov ntawm -40, lub Damascus riam tsis muaj kev tawg, thaum cov pa carbon riam qhia tau peb 0.5mm loj tawg
Tus nqi kho mob: Damascus riam tsuas yog yuav tsum maj mam ib hlis ib zaug, thaum muaj rab riam hlau tau txais polished thiab coated nrog anti xeb roj txhua lub lim tiam
Qhov kev ua tau zoo no tau siv zog hauv kev lag luam yos hav zoov riam. Raws li cov txheeb cais los ntawm ib qho zoo - paub hom, cov neeg yuav khoom noj riam phom rau nws cov Direascus yos hav zoov Riam phom tsuas yog 3.7 xyoo. Tus Neeg Siv Tswv yim qhia tau tias Lub Ramascus riam yog qhov zoo dua tuaj yeem tswj cov hniav kev ncaj ncees thaum tuav loj loj thiab tsis tas yuav hloov cov hniav loj.