Nghiên cứu đặc tính lớp phủ hợp kim 67ni18cr5si4b trên nền thép c45 bằng công nghệ phun phủ HVOF

NGHIEN CUTU - TRAO oOl

NGHIEN CLTU DAC TIN H LQ P PHO BOT HOP KIWI

67NI18CR5SI4B TREN N^N TH^P C45

BANG CONG NGHE PHUN PHU HVOF

A RESARCH ON THE CHARACTERISTICS OF 67NI18CR5SI4B ALLOY

POWDER COATING ON C45 STEEL WITH HIGH VELOCITY OXYGEN FUEL

THERMAL SPRAY METHOD (HVOF)

ThS. Pham Van Li^u', PGS,TS. Dinh Van Chien^

'Trudng Dai hgc Sao Dd

^Trudng Dai hgc Md - Dia chdt

TOM TAT

Cong nghe phun phu HVOF Id cong nghe mdi, tien tiin tren the gi&i. Mac du dugc phdt trien

tie nhimg ndm 1980 nhung cong nghe phun HVOF dugc ung dung rgng rai vd da dgng tren nhieu

linh vuc do cd nhieu uu diem. O Viet Nam, cong nghe phun phu HVOF con rdt mai, chua dugc dp

dung nhieu. Trong bdi bdo ndy, nhdm tdc gid trinh bdy kit qud nghien citu do cung, do xop vd do

bdm dinh lap phu, ddng thdi ddnh gid chdt lirgng lap phu bgt hgp kim 67Nil8Cr5Si4B tren nen thep

C45 bang cong nghe phun HVOF.

Tir khoa: Phun phit, HVOF, lap phu, bgt phun 67Nil8Cr5Si4B, do cimg. do bdm dinh.

ABSTRACT

HVOF spraying technology is an advanced new technology in the world. Although this

technology has developed since 1980, it has been widely applied in diverse fields because of its

numerous advantages. In Vietnam. HVOF spraying technology undeniably remains fairly new and

has not had a wide range of applications. In this study, a group of writers will present the results

of the coating's hardness, porosity and adhesion and evaluate the quality of67Nil8Cr5Si4B alloy

powder coating on C45 steel with high velocity oxygen fuel thermal spray method (HVOF).

Keywords: Sprer^, HVOF, coating, 67NiISCr5Si4B alloy powder, hardness, adhesion.

ISSN 0866 - 7056

TAP CHl CO KHl VI£ T NAM, Sd 12 ndm 2015

www.cokhivietnam.vn