Skip to the main content

Engineering Review : International journal for publishing of original researches from the aspect of structural analysis, materials and new technologies in the field of mechanical engineering, shipbuilding, fundamental engineering sciences, computer sciences, electrical engin, Vol. 34 No. 1, 2014.

Original scientific paper

Plasma arc fusion-pressure welding of Al-ZrO2 system composite synthesized by XD method

Zhang Deku ; Nanjing
Zhu Heguo
Huang Yi
Zhang Wenjun

Full text: english PDF 1.063 Kb

page 33-38

downloads: 718

cite

Abstract

In this paper, an Al-ZrO2 system composite
synthesized by XD method is welded by a new
plasma arc fusion-pressure welding method. Their
joint forms and microstructures are investigated.
The results show that the optimum process
parameters for the Al-ZrO2 System composite
(Ф7mm) are as follows: welding current is 150A
and welding time is 2s, no adding filling materials,
spring upset force is 2.45N. There are no defects
such as large gas pore, micro-hole, or incomplete
fusion in the joint. During the solidification of the
molten pool, the melted Zr3Al grows fully along the
minimum growing energy direction <110>, thus
the slender stick precipitates of Zr3Al appear in the
weld. The joint form and the microstructure are
affected by the processing parameters such as
welding current. For example, a larger current will
cause the defect of micro-hole in the joint.

Keywords

composite material; plasma arc; fusion-pressure welding

Hrčak ID:

116428

URI

https://hrcak.srce.hr/116428

Publication date:

19.2.2014.

Visits: 1.377 *