Zobrazeno 1 - 10
of 22
pro vyhledávání: '"HK Chikwanda"'
Autor:
HK Chikwanda, L. Mahlatji
Publikováno v:
Key Engineering Materials. 770:95-105
Mechanical alloying (MA) is a simple and versatile dry powder processing technique that has been used for the manufacture of both equilibrium and metastable phases of commercially useful and scientifically interesting materials. It owes its origin to
Publikováno v:
Key Engineering Materials. 770:3-8
In this paper, titanium powders from various sources were characterized to compare powder intergrity for additive manufacturing by selective laser melting process. Selective laser melting by powder-bed based Additive Manufacturing (AM) is an advanced
Publikováno v:
Procedia Manufacturing. 7:309-315
Manufacturing processes typically produce residual stresses. The residual stresses can be advantageous when they are compressive and detrimental when tensile. In roll compaction of metal powder, similarly to rolling solid metals, substantial residual
Publikováno v:
Materials & Design, Vol 90, Iss, Pp 757-766 (2016)
The effects of die wall lubricants on the cold compaction of titanium hydride powder are studied. Three commonly-used die wall powder metallurgy lubricants – zinc stearate, Acrawax® C dispersion and Mirror Glaze® – are compared. The influence o
Publikováno v:
Proceedings of the EAI International Conference for Research, Innovation and Development for Africa.
Publikováno v:
Materials Science Forum. :447-452
Direct powder rolling (DPR)/roll compaction has been labelled a complex and sample sensitive process. As such the design of the instrument and the determination of the optimal processing conditions for a given feed are very challenging. The challenge
Publikováno v:
Materials Science Forum. :421-426
Over the past years, the blended elemental powder metallurgy (PM) approach has been identified as one of the most promising strategies to reduce the cost of titanium-based components. However, oxygen pick-up, inhomogeneity of the microstructure and c
Publikováno v:
Materials Science Forum. :138-144
Debinding involves long and delicate processing periods of removing binder components from a green body after injection moulding; failure to completely remove the binder components results in distortion, cracking, blisters and contamination at elevat
Publikováno v:
Materials Science Forum. :121-128
The paper captures the effect of structure and the applicability of compaction models using the cold compaction of a TiH2-SS316L composite powder prepared by high energy mechanical milling. The composite blend was cold pressed uniaxially to pressures
Autor:
Ronald Machaka, HK Chikwanda
Publikováno v:
Materials Science Forum. :158-164
Controlled thermogravimetric pyrolysis of a metal injection moulding (MIM) feedstock was performed in order to characterize the associated thermal debinding processing in an inert atmosphere. The feedstock was formulated using Ti-6Al-4V metal powders