Author:Machaka, Ronald; Ndlangamandla, P; Seerane, Mandy NDate:Feb 2018This paper reports on an attempt to establish the rheological properties of 17-4 PH stainless steel MIM feedstocks prepared using a proprietary CSIR wax-based binder system. The influence of powder and feedstock characteristics on the rheological ...Read more
Author:Mathoho, I; Akinlabi, ET; Arthur, Nana KK; Tlotleng, MonnammeDate:Aug 2020This study investigated the influence direct energy deposition (DED) process parameters have on the metallurgical characteristics (porosity, microstructural evolution, microhardness, and corrosion behavior) of 17−4 PH stainless steel powder. ...Read more
Author:Adeyemi, AA; Akinlabi, ET; Mahamood, RM; Sanusi, KO; Pityana, Sisa L; Tlotleng, MonnammeDate:Sep 2017The influence of laser power on the microstructure of 17-4 PH stainless steel produced by laser metal deposition was investigated. Multiple-trackof 17-4 stainless steel powder was deposited on 316 stainless steel substrate using laser metal ...Read more
Author:Seerane, Mandy; Ndlangamandla, P; Machaka, RonaldDate:Oct 2016Metal injection moulding (MIM) is a near-net-shaping powder metallurgy technique suitable for the cost-effective mass production of small and complex components. In this paper, the effects of the metal powder particle size on the final ...Read more
Author:Seerane, Mandy N; Ndlangamandla, P; Machaka, RonaldDate:Oct 2016Metal injection moulding (MIM) is a near-net-shaping powder metallurgy technique suitable for the cost-effective mass production of small and complex components. In this paper, the effects of the metal powder particle size on the final ...Read more
Author:Machaka, RonaldDate:Oct 2018While the metal injection moulding (MIM) of the precipitation-hardenable 17-4 PH stainless steel has found wide-ranging applications in a number of industries and popularity as a workhorse alloy, data on the as-sintered properties ‘that can ...Read more
Author:Muchavi, Noluntu S; Bam, L; De Beer, FC; Chikosha, Silethelwe; Machaka, RonaldDate:Oct 2016Parts manufactured through power metallurgy (PM) typically contain pores that can be detrimental to the final mechanical properties. This paper explores the merits of 3D X-ray computed tomography over traditional microscopy for the characterization ...Read more