Ol bikpela samting bilong masin bilong ol aloi we i gat nikel long en

Taim yumi yusim ol samting we i gat 'nickel-', pastaim yumi mas kliagut long ol 'mechanical properties' bilong ol long painimaut sapos ol i inapim sampela wok bilong ol indastri. Ol dispela samting bilong masin em: strong bilong 'tensile' (TS), strong bilong 'yield' (YS), 'elongation rate', na 'hardness', na ol narapela samting.

 

Long kisim ol dispela data, yu mas mekim wanpela 'tensile test'. Ol i save yusim 'tensile test' long painimaut pasin bilong samting taim em i kisim 'axial tensile load'. Ol ikwipmen we ol i yusim long mekim 'tensile test' ol i kolim 'universal tensile machine'.

 

 

Strong bilong 'tensile' (TS): Maksimum hevi we samting inap long karim pastaim long em i bruk, em i bikpela samting we metal i save senis long en long wankain plastik difomesen i go long 'localized concentrated plastic deformation', na tu em i maksimum lod-bearing kapasiti bilong metal aninit long ol 'static tensile' kondisen. Dispela mak em Rm (olpela nesenel standet GB/T 228-1987 i tok olsem mak bilong strong bilong 'tensile' em σb), na yunit em MPa.

 

Strong bilong 'yield' (YS): 'Critical stress value' bilong samting i ken 'yield'. Strong bilong 'yield' em i 'yield limit' bilong metal samting taim em i go insait long 'yield phenomenon', em i olsem, 'stress resisting' bilong liklik 'plastic deformation'. Long ol metal we i no gat klia 'yield phenomenon', ol i kolim 'stress value' we i kamapim 0.2% 'residual deformation' olsem 'yield limit' bilong en, ol i kolim 'conditional yield limit' o 'yield strength'. Taim wanpela strong i winim dispela mak i wok long en, dispela hap bai senis oltaim; taim i liklik long dispela, hap bai go bek long as bilong en.

 

Elongation rate: Pesen bilong total difomesen ΔL bilong spesimen bihain long tensil fraksen i go long orijinel gej longpela L: δ=ΔL/L × 100%. Bikpela o liklik 'elongation rate' i soim olsem samting inap long kisim pawa long taim bilong putim strong na strong bilong dispela samting long senisim 'plastic deformation'. Taim 'elongation rate' i go antap, dispela i save mekim 'permanent deformation' we dispela samting inap long karim long taim bilong 'force application process', na dispela i soim gutpela 'plastic deformation' abiliti, we i gutpela long ol enjiniaring senario we i nidim bikpela strong; taim ol samting we i no gat bikpela 'elongation rate' i save bruk bruk na i save bruk wantu tasol.

 

Testing bilong strong bilong en: Strong bilong en em i strong bilong wanpela samting long sakim ol liklik hul long pes bilong en. Ol rot bilong skelim strong bilong en em Brinell hatnes (HB), Rockwell hatnes (HR), na Vickers hatnes (HC). Brinell hatnes em i gutpela long ol plastik samting, Rockwell hatnes em i gutpela long ol jenerel metal samting, na Vickers hatnes em i gutpela long ol samting we i liklik o liklik - eria tes. Yu ken skelim liklik namel long ol bihainim ekspiriens na ol tes kondisen.