Enhanced wear resistance of Stellite 12 by Mo addition and LSM*

Shaikh Asad Ali Dilawary*, Amir Motallebzadeh, Rehan Akhter, Erdem Atar, Huseyin Cimenoglu

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

8 Atıf (Scopus)

Özet

Aiming at additional improvements in the properties of Stellite 12 PTA hardfacing alloy deposited on 4140 steel substrate, the authors have adopted a dual approach. During PTA deposition Stellite 12 hardfacing powder was alloyed with 10 wt-% Mo, followed by laser surface melting (LSM). Addition of 10 wt-% Mo, led to an increase in the volume fraction of Co and W-rich complex carbides. Later on LSM executed on the PTA led to the development of unique microstructure near the surface, characterised by the segregation of hard Cr-rich carbides. The resultant layers were subjected to mechanical characterisation, at room temperature, e.g. hardness and wear resistance. It was concluded that combining both approaches i.e. addition of Mo during the hardfacing process followed by LSM of deposited layer gave additional improvements in mechanical properties owing to evolution of a unique carbide structure.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)569-576
Sayfa sayısı8
DergiSurface Engineering
Hacim34
Basın numarası8
DOI'lar
Yayın durumuYayınlandı - 3 Ağu 2018

Bibliyografik not

Publisher Copyright:
© 2017 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.

Finansman

Authors are also grateful to the Higher Education Commission of Pakistan for PhD study grant for Shaikh Asad Ali Dilawary at Istanbul Technical University, Turkey.

FinansörlerFinansör numarası
Istanbul Teknik Üniversitesi
Higher Education Commision, Pakistan

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