Dimensional Changes in Some Iron-Based Powder Metallurgy Alloys
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2015, Vol 38, Issue 1
Abstract
The purpose of this paper is to present the dimensional changes in some ironbased (P/M) alloys. The specimens produced from atomized iron powder and alloyed powder with different sizes (< 45, 45-63, 63-100, 100-150, >150 μm) were subjected to compaction at 400 and 600 MPa. After compaction, the specimens were sintered at 1150 ºC for 1 h. The density of green and sintered iron and ironbased alloys, the mechanical properties (hardness) and dimensional changes were evaluated.
Authors and Affiliations
Mihaela MARIN, Florentina POTECAȘU, Octavian POTECAȘU
Measures to Optimize Job Security "Crane Machinists to Transport Liquid Steel"
The starting point in optimizing the prevention of occupational accidents and occupational diseases for a crane machinist for the transport of liquid steel is the risk assessment of the system. Risk assessment involves t...
Some Effects of Microwave Heating of Chromite Ore for Fe-CrAl Alloys by Aluminothermy
Processes and prime materials involved in Fe-Cr-Al alloys production by aluminothermy are presented having in view new possibilities to produce them more ecological and more efficient, using energy of microwave field. Th...
Influence of the Unconventional Treatment Applied to a Steel on the Corrosion Evolution
The study of an alloyed steel with Cr Mo with an important content of aluminum (0.9…1.2%), unconventionally treated in magnetic field, is attractive because of the durability which increases along with the improvement of...
Researches Concerning the Correlation of the Semiplanetary Rolling Process Factors
An available solution of the elimination of the superficial cracks network at the continuous cast slabs is the semiplanetary rolling. The application of a semiplanetary rolling mill at the exit of slab from the curve zon...
Prediction of Work Parameters in a Cold Mill Using Neural Network
The accurate prediction of work parameters is essential for a quality product. A mathematical model is used for parameters calculus. It is important to directly predict the roll force and the other parameters and to comp...