Vim li cas molybdenum ntxiv rau hlau alloy?
Tso lus
Vim li cas molybdenum ntxiv rau hlau alloy?
Molybdenum (MO)
Ua kom muaj zog, hardness, hardenability, thiab toughness, nrog rau creep kuj thiab lub zog ntawm siab kub. Nws txhim kho machinability thiab tiv thaiv corrosion thiab nws intensifies cov teebmeem ntawm lwm yam alloying ntsiab.
Kev cuam tshuam ntawm cov ntsiab lus alloying hauv cov hlau
Los ntawm kev txhais, steel yog kev sib xyaw ntawm hlau thiab carbon. Hlau yog alloyed nrog ntau yam khoom los txhim kho lub cev thiab tsim cov khoom tshwj xeeb, xws li corrosion lossis kub tsis kam. Cov teebmeem tshwj xeeb ntawm kev ntxiv cov ntsiab lus no tau sau tseg hauv qab no:
Cov pa roj carbon (C)
Qhov tseem ceeb tshaj plaws ntawm cov hlau. Nws nce tensile lub zog, hardness thiab hnav tsis kam. Nws txo ductility, toughness thiab machinability.
Chromium (CR)
Txhim kho lub zog tensile, hardness, hardenability, toughness, hnav tsis kam, corrosion kuj thiab scaling peev xwm ntawm kub kub.
Cobalt (CO)
Ua kom lub zog thiab hardness, tso cai rau siab dua quenching kub, thiab ua rau kom cov liab hardness ntawm high-ceev steels. Nws kuj tseem txhim kho tus kheej cov teebmeem ntawm lwm cov ntsiab lus tseem ceeb hauv cov hlau ntau dua.
Columbium (IB)
Siv los ua cov khoom stabilizing rau stainless hlau. Txhua lub ntsiab lus muaj kev sib raug zoo rau cov pa roj carbon monoxide thiab tsim cov carbides uas sib npaug sib npaug thoob plaws hauv cov hlau. Yog li ntawd, lub zos nag lossis daus ntawm carbides ntawm grain ciam teb yog tiv thaiv.
Tooj liab (CU)
Ua phem rau cov hlau ua haujlwm kub ntau. Tooj liab tuaj yeem cuam tshuam tsis zoo rau forge vuam, tab sis yuav tsis cuam tshuam rau arc vuam lossis oxyacetylene vuam. Tooj liab tuaj yeem ua rau lub ntsej muag zoo. Thaum cov ntsiab lus tooj liab tshaj 0.20%, nws yog qhov zoo rau atmospheric corrosion kuj. Weathering steel yog muag nrog cov ntsiab lus tooj liab ntau tshaj 0.20%.
Manganese (MN)
Deoxidizer thiab degassing tus neeg sawv cev, reacts nrog sulfur los txhim kho malleability. Nws txhim kho lub zog tensile, hardness, hardenability thiab hnav tsis kam. Nws txo cov nyiam scale thiab distort. Nws ua rau kom cov pa roj carbon nkag thaum lub sij hawm carburizing.
Molybdenum(MO)
Txhim kho lub zog, hardness, hardenability thiab toughness, nrog rau creep kuj thiab lub zog ntawm kub kub. Nws txhim kho machinability thiab corrosion kuj thiab txhim kho cov teebmeem ntawm lwm yam alloying ntsiab. Hauv cov hlau ua haujlwm kub thiab kev kub ceev steel, nws tuaj yeem txhim kho qhov tawv tawv.
Nickel (NI)
Txhim kho lub zog thiab hardness yam tsis muaj ductility thiab toughness. Thaum ntxiv cov nqi tsim nyog rau siab chromium (stainless steel) steel, nws tuaj yeem txhim kho corrosion thiab scaling kuj ntawm qhov kub thiab txias.
Phosphorus (P)
Ua kom muaj zog thiab hardness thiab txhim kho machinability. Txawm li cas los xij, nws ua rau kom cov brittleness lossis txias brittleness ntawm cov hlau.
Silicon (SI)
Deoxidizer thiab degassing tus neeg sawv cev. Nws nce tensile thiab yield zog, hardness, malleability thiab magnetic permeability.
Sulfur (S)
Txhim kho lub machinability ntawm dawb-txiav steel, tab sis tsis muaj manganese txaus nws tuaj yeem ua nkig thaum liab kub. Nws txo weldability, cuam tshuam toughness thiab ductility.
Tantalum (TA)
Siv los ua cov khoom stabilizing rau stainless hlau. Txhua lub ntsiab lus muaj kev sib raug zoo rau cov pa roj carbon monoxide thiab tsim cov carbides uas sib npaug sib npaug thoob plaws hauv cov hlau. Yog li ntawd, lub zos nag lossis daus ntawm carbides ntawm grain ciam teb yog tiv thaiv.
Titanium (TSI)
Siv los ua cov khoom stabilizing rau stainless hlau. Txhua lub ntsiab lus muaj kev sib raug zoo rau cov pa roj carbon monoxide thiab tsim cov carbides uas sib npaug sib npaug thoob plaws hauv cov hlau. Yog li ntawd, lub zos nag lossis daus ntawm carbides ntawm grain ciam teb yog tiv thaiv.
Tungsten (W)
Txhim kho lub zog, hnav tsis kam, hardness thiab toughness. Tungsten steel muaj kev ua haujlwm kub zoo thiab ua haujlwm siab dua ntawm qhov kub thiab txias.
Vanadium (V)
Txhim kho lub zog, hardness, hnav tsis kam thiab cuam tshuam tsis kam. Nws retards grain loj hlob, cia siab quenching kub. Nws kuj tseem txhim khu cov xim liab hardness ntawm high-speed hlau txiav cov cuab yeej.
