, Cov yam ntxwv cov khoom siv: Dual lav ntawm Hardness thiab Toughning
1. Microstructure zoo ntawm Damascus riam
Tus tseem ceeb ntawm lub Damascus riam nyob rau hauv nws cov cim fawm ua ke. Los ntawm kev muab quav thiab forging, Prafttsmen fuse hlau bilemts xws li vanadium thiab molybdenum, sib sau ua ntu zus ntawm nanoscale carbide hlau hais. Electron tsom iav tsom iav qhia pom tias cov qauv no muab cov hniav ob leeg tawv (HRC 60-62) thiab kev ua kom muaj kev ncaj ncees thaum raug cuam tshuam. Piv txwv li, nyob rau hauv lub siege of acre hauv 1291, Mamluk Cavalry tus ntse txawm tias tom qab txiav peb cov khoom siv pob zeb rau kev cuam tshuam cov kev cuam tshuam rau kev cuam tshuam lub zog.
2. Lub cev yuav tsum tau ua kom pib hluav taws nrog flint
Niaj hnub nimno flint yog ua los ntawm cerium thiab lanthhanum tsawg lub ntiaj teb alloys li nws cov tub ntxhais, uas tsim kom muaj siab {}} kub sparks ntawm 3000℃los ntawm scraping. Cov txheej txheem ntawm kev pib hluav taws yuav tsum tau ob qho xwm txheej kom tau ntsib:
Cov Khoom Siv Nrig Ruaj Ruaj: Yuav tsum muaj cov khoom tawv kom muab kev sib txhuam txuas ntxiv
Txhim kho Mars Cov Lus Taw Qhia: Cov cuab yeej xav tau los tswj cov kev taw qhia ntawm Mars Splashes
Lub mohs hardness ntawm lub Damascus riam ncav cuag 6-7, deb tshaj qhov ntawm cov hlau dog dig (5-6). Tom qab zoo polishing, nws cov nplaim dej tuaj yeem tsim cov uniform micro concave convearic hmoov thiab tswj lub trajectory ntawm sparks los ntawm cov hniav lub ntsej muag.
2, Paj ntaub cog lus Adjicity: lub convergence taw tes ntawm ib txwm forging thiab niaj hnub muaj sia nyob
1. Kev Ntsuam Xyuas Kev Ntsuam Xyuas ntawm kev khawb
Kev sim cov ntaub ntawv qhia tau tias thaum siv rab riam Damascus los txhuam Flint, txoj kev sib txhuam ib thaj chaw yog 37% siab dua li ntawm cov riam tsis muaj riam phom. Qhov no yog vim muaj "riam phom streamline" tsim thaum nws Forging txheej txheem, uas yog hais txog cov kev coj ua lead ua cov kev coj ua tau tsim tawm thaum cov hlau billet tau tais. Thaum cov hniav tau scraped ntawm lub kaum ntawm 15℃-20℃thiab kev sib tw sib txawv ntawm cov kev ua tau zoo tshaj plaws, uas tuaj yeem ua kom zoo tshaj plaws ntawm magnesium hmoov tev.
2. Kev ntseeg tau cov ntaub ntawv pov thawj
Nyob rau hauv ib puag ncig kub tsawg ntawm -20 degree, cov cuab yeej txiav zoo tib yam yuav muaj kev deformation vim yog thermal expansion thiab condaction, uas tuaj yeem cuam tshuam rau kev scrapting raug. Cov txheej txheem txheej txheem ntawm cov Damascus muaj qhov kev kub ntxhov thermal ua rau muaj peev xwm ntawm cov qauv hlau (20-10 microns) Xyoo 2024, Arctic Scartic Tshawb Pawg Tshawb Fawb thiab pom tias siv hluav taws kub ntawm kev ua ke ntawm cov cua daj cua dub, uas yog 41% siab tshaj qhov ntawm cov riam phom tib yam nkaus.
3, Daim Ntawv Teev Npe: Hla los ntawm kev sib ntaus sib tua keeb kwm rau cov chaw sab nraud niaj hnub
1. Cov neeg muaj yeej ntawm cov tub rog ciaj sia taus
Thaum lub caij CRUSADES, tus tsim scabbard tsim los ntawm arab cantarsmen rau Mamluk Cavalry uas cuam tshuam hluav taws ua haujlwm. Sab hauv txheej ntawm scabbard yog embedded nrog Magnesium strips, thiab txheej sab nraud yog them nrog birch tawv ntoo. Cov tub rog tuaj yeem siv cov hniav sai sai rau txhuam cov tshuaj magnesium hmoov thiab pib hluav taws. Cov qauv tsim no tau ua lub luag haujlwm tseem ceeb hauv 1260 kev sib ntaus sib tua ntawm Ain Jarut, thiab cov neeg ciaj sia tau txiav los ntawm kev ua txhaum hluav taws thiab nrhiav kev pab hauv cov suab puam.
2. Npaj Txhim Kho Kom Zoo rau Kev Muaj Peev Xwm Sab Nraud
Kawm cov kws tshaj lij sab nraud tau tsim ib qho "peb daim hluav taws kub":
Damascus riam (raws li lub cuab yeej scraping)
Magnesium bar flint (muab kev ntsuas kub txuas ntxiv)
Carbonized Paj Rwb Curgititect (Quick ntes ntawm Mars)
Kev ua tau zoo ntawm cov kab ke no tshwj xeeb tshwj xeeb hauv cov chaw noo noo noo noo. Cov kev sim tau qhia tias thaum ib puag ncig cov av noo ncav tau tseem muaj kev vam meej ntawm kev ua tiav hluav taws ntawm 78%. Nws cov tub ntxhais zoo nyob hauv:
Magnesium hmoov tuaj yeem hlawv ntawm qhov kub ntawm 1900℃thiab tam sim ntawd qhuav lub npoo noo ntawm cov khoom siv hluav taws xob
Lub thermal conductivity ntawm cov hniav (thermal conductivity 45W / MINK KN) feeb txog cov cua sov tsim los ntawm kev khawb ntawm lub rooj sib chwv
4, kev sib cav sib xyaw thiab cov kev daws teeb meem
1. Kev txhawj xeeb txog cov hniav puas
Cov tw kis tau tias cov khawb ntau zaus yuav ua rau me me ntawm lub nroog Damascus ntug. Txawm li cas los xij, cov ntaub ntawv tshawb fawb txuj ci qhia tau hais tias thaum lub zog scraping yog tswj hwm ntawm 15-20n (li ntawm 1.5-2kgf), qhov tob ntawm cov hniav puas tsawg dua 0.01mm. Tus kws ua txuj ci niaj hnub siv ua kua nitrogen kev kho kom zoo ntxiv kom cov hniav tawv tawv rau HRC 64, txuas ntxiv txuas nws lub neej pabcuam.
2. Tshuav ntawm tus nqi -} ua tau zoo
Mekas Dabascus riam yog feem ntau luv nqi ntawm
500−
2000 zaus, thaum lub sijhawm sau ntawv tsuas yog xav tau
20−
50. Nyob rau hauv cov lus teb, cov kws tshaj lij muaj sia nyob tau tshaj tawm "kev daws teeb meem ntawm lub ntsej muag, uas tsis tsuas yog ua kom lub siab- zaus hluav taws.
