Dab tsi cov ntsiab lus lossis microstructures feem ntau txiav txim siab hnav tsis kam ntawm nickel-raws li alloys?
Chromium (Cr): Nws tsim cov yeeb yaj kiab ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom oxide zaj duab xis (Cr₂O₃) ntawm cov hlau nplaum, uas txo cov nplaum nplaum thiab oxidative hnav zoo, thiab txhim kho cov hlau nplaum tiv thaiv - adhesion muaj peev xwm.
Tungsten (W) / Molybdenum (Mo): Cov ntsiab lus no tsim cov sib txuas sib txuas nyuaj (piv txwv li, Ni₃W, Ni₃Mo) thiab cov khoom- kev daws teeb meem ntxiv dag zog rau cov npib tsib xee matrix, ua kom cov tawv tawv thiab tiv thaiv- abrasive hnav ua haujlwm ntawm cov hlau.
Cov pa roj carbon (C) / Boron (B): Lawv hnov mob nrog cov carbide muaj zog- tsim cov ntsiab lus (Cr, W, Mo, thiab lwm yam) los tsim cov theem nyuaj xws li carbides (MC, M₆C) thiab borides. Cov theem nyuaj no tau muab faib ua tib yam hauv matrix, ua raws li hnav- tiv thaiv kev tiv thaiv los tiv thaiv kev txiav thiab extrusion ntawm abrasive hais.
Aluminium (Al) / Titanium (Ti): Lawv tsim cov theem ruaj khov (Ni₃Al, Ni₃Ti) los ntawm nag lossis daus. Kev sib raug zoo ntawm 'theem thiab nickel matrix txhim khu lub hardness thiab deformation tsis kam ntawm cov hlau, yog li txhim kho hnav tsis kam.
Dispersed Hard Phases: Uniformly faib carbides, borides, thiab intermetallic tebchaw yog lub hauv paus ntawm hnav tsis kam. Qhov luaj li cas, morphology, thiab kev faib tawm ntawm cov theem nyuaj no ncaj qha cuam tshuam rau kev hnav tsis kam- cov theem nyuaj zoo thiab sib npaug sib npaug muaj qhov hnav zoo dua - cov teebmeem tiv thaiv.
Cov dej nag-Txhim kho Matrix: The 'theem precipitated nyob rau hauv nickel matrix tuaj yeem cuam tshuam qhov kev txav ntawm cov dislocations, txhim kho lub hardness thiab lub zog ntawm matrix, thiab tiv thaiv lub matrix los ntawm kev hnav ua ntej, yog li tiv thaiv cov theem nyuaj.
Dense Oxide Zaj duab xis: Cov yeeb yaj kiab oxide txuas ntxiv thiab ruaj khov ua rau ntawm qhov chaw thaum lub sijhawm ua haujlwm tuaj yeem cais cov hlau los ntawm kev sib txhuam, txo qis kev sib cuag ntawm cov hlau, thiab txo cov nplaum hnav thiab oxidative hnav.
