Study on thixojoining process using partial remelting method

M. N. Mohammed, Mohd. Zaidi Omar, M. S. Salleh, K. S. Alhawari

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Cold-work tool steel is considered to be a nonweldable metal due to its high percentage content of carbon and alloy elements. The application of a new process of the semisolid joining of two dissimilar metals is proposed. AISI D2 cold-work tool steel was thixojoined to 304 stainless steel by using a partial remelting method. After thixojoining, microstructural examination including metallographic analysis, energy dispersive spectroscopy (EDS), and Vickers hardness tests was performed. From the results, metallographic analyses along the joint interface between semisolid AISI D2 and stainless steel showed a smooth transition from one to another and neither oxides nor microcracking was observed. Hardness values obtained from the points in the diffusion zone were much higher than those in the 304 stainless steel but lower than those in the AISI D2 tool steel. The study revealed that a new type of nonequilibrium diffusion interfacial structure was constructed at the interface of the two different types of steel. The current work successfully confirmed that avoidance of a dendritic microstructure in the semisolid joined zone and high bonding quality components can be achieved without the need for force or complex equipment when compared to conventional welding processes.

Original languageEnglish
Article number251472
JournalAdvances in Materials Science and Engineering
Volume2013
DOIs
Publication statusPublished - 2013

Fingerprint

Remelting
Tool steel
Stainless Steel
Stainless steel
Dissimilar metals
Microcracking
Vickers hardness
Steel
Joining
Chemical elements
Oxides
Energy dispersive spectroscopy
Welding
Carbon
Metals
Hardness
Microstructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Study on thixojoining process using partial remelting method. / Mohammed, M. N.; Omar, Mohd. Zaidi; Salleh, M. S.; Alhawari, K. S.

In: Advances in Materials Science and Engineering, Vol. 2013, 251472, 2013.

Research output: Contribution to journalArticle

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