The welddepositionofhardfacingalloy

The welddepositionofhardfacingalloysisemployedin
agriculturetools,mining,sugarindustryandotherstoincrease
hardnessandabrasivewearresistanceofthemechanical
components. Abrasionwearoccursincontactsituationsbetween
two surfaceswhenoneisconsiderablyharderthantheother [1].
Threeabrasivewearmechanismsareobservedusingascanning
electron microscopy(SEM):microcutting,microploughingand
wedgeformation [2,3]. Theabrasionresistanceofmaterials
depends verymuchontheparticlessize [4–6]. Thus,itsselection
is particularlyimportantintheevaluationofabrasiveproperties.
A strongdiminutionoftheabrasivewearratehappenswhenthe
hardnessofthematerialexceedsthehardnessoftheabrasive [7].
Severalstudiesontheevaluationofabrasivewearresistancehave
found thatusingharddepositsinweldingprocessesisagood
alternativetorecoverpartsunderabrasivewear,asinthecaseofthe
miningindustry [7,8]. Inotherstudies,whichhaveusedhard
coveringsdepositedongraycastiron,haveshownthatabrasion
resistanceismainlyduetothevariationinchemicalcompositionand
microstructureofthedeposits,wherethecarboncontentisa
determiningfactorinthecarbideformationandthematrixofthe deposits [9]. AccordingtoZumGahr [10] abrasivewearresistancecan
besubstantiallyimprovedbysecond phasesembeddedinahardor
softmatrix.Thepresentinvestigationaimstostudyfourhardfacing
electrodesappliedintwoweldingprocesses(usedtypicallyinthe
sugarcaneindustryforrecoveryofwornelements)intermsoftheir
microstructure,hardnessandabrasivewearresistance.

ผลลัพธ์ (ไทย) 1:

Welddepositionofhardfacingalloysisemployedinagriculturetools ทำเหมือง sugarindustryandotherstoincreasehardnessandabrasivewearresistanceofthemechanicalคอมโพเนนต์ Abrasionwearoccursincontactsituationsbetween2 surfaceswhenoneisconsiderablyharderthantheother [1]Threeabrasivewearmechanismsareobservedusingascanningอิเล็กตรอน microscopy (SEM): microcutting, microploughingandwedgeformation [2,3] Theabrasionresistanceofmaterialsขึ้นอยู่กับ verymuchontheparticlessize [4-6] ดังนั้น itsselectionparticularlyimportantintheevaluationofabrasiveproperties ได้Strongdiminutionoftheabrasivewearratehappenswhenthe การhardnessofthematerialexceedsthehardnessoftheabrasive [7]Severalstudiesontheevaluationofabrasivewearresistancehaveพบ thatusingharddepositsinweldingprocessesisagoodalternativetorecoverpartsunderabrasivewear, asinthecaseoftheminingindustry [7,8] Inotherstudies, whichhaveusedhardcoveringsdepositedongraycastiron, haveshownthatabrasionresistanceismainlyduetothevariationinchemicalcompositionandmicrostructureofthedeposits, wherethecarboncontentisadeterminingfactorinthecarbideformationandthematrixofthe ฝาก [9] Abrasivewearresistancecan AccordingtoZumGahr [10]besubstantiallyimprovedbysecond phasesembeddedinahardorsoftmatrixThepresentinvestigationaimstostudyfourhardfacingelectrodesappliedintwoweldingprocesses (usedtypicallyintheintermsoftheir sugarcaneindustryforrecoveryofwornelements)ต่อโครงสร้างจุลภาค hardnessandabrasivewearresistance

ผลลัพธ์ (ไทย) 3:

การ welddepositionofhardfacingalloysisemployedin
agriculturetools , เหมือง , sugarindustryandotherstoincrease

hardnessandabrasivewearresistanceofthemechanical ส่วนประกอบ abrasionwearoccursincontactsituationsbetween
2 surfaceswhenoneisconsiderablyharderthantheother [ 1 ] .

threeabrasivewearmechanismsareobservedusingascanning กล้องจุลทรรศน์อิเล็กตรอนชนิดส่องกราด ( SEM ) : microcutting microploughingand
, wedgeformation [ 2 , 3 ]theabrasionresistanceofmaterials
ขึ้นอยู่กับ verymuchontheparticlessize [ 4 – 6 ) ดังนั้น itsselection
เป็น particularlyimportantintheevaluationofabrasiveproperties .

เป็น strongdiminutionoftheabrasivewearratehappenswhenthe hardnessofthematerialexceedsthehardnessoftheabrasive [ 7 ] thatusingharddepositsinweldingprocessesisagood


severalstudiesontheevaluationofabrasivewearresistancehave พบalternativetorecoverpartsunderabrasivewear asinthecaseofthe
, miningindustry [ 7 , 8 ) inotherstudies whichhaveusedhard coveringsdepositedongraycastiron haveshownthatabrasion

, ,

wherethecarboncontentisa microstructureofthedeposits resistanceismainlyduetothevariationinchemicalcompositionand , determiningfactorinthecarbideformationandthematrixofthe เงินฝาก [ 9 ]accordingtozumgahr [ 10 ] besubstantiallyimprovedbysecond phasesembeddedinahardor abrasivewearresistancecan

softmatrix . thepresentinvestigationaimstostudyfourhardfacing
electrodesappliedintwoweldingprocesses ( usedtypicallyinthe
sugarcaneindustryforrecoveryofwornelements ) intermsoftheir

โครงสร้างจุลภาค hardnessandabrasivewearresistance .