Microstructure evolution and mechanical properties of Al-8wt. % Si semi-solid billet fabricated by powder metallurgy liquid phase reaction sintering

2021 ◽  
Vol 802 ◽  
pp. 140656
Author(s):  
Wenchao Liu ◽  
Lianxi Hu ◽  
Jingyuan Shen ◽  
Fei Gao ◽  
Yu Sun
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Liquid Phase ◽  
Microstructure Evolution ◽  
Phase Reaction ◽  
Reaction Sintering ◽  
Semi Solid ◽  
Liquid Phase Reaction

Microwave Reaction Sintering of Tungsten Carbide Cobalt Hardmetals

1996 ◽  
Vol 430 ◽  
Author(s):  
T. Gerdes ◽  
M. Willert-Porada ◽  
K. Rödiger ◽  
K. Dreyer
Keyword(s):  
Mechanical Properties ◽  
Tungsten Carbide ◽  
Microwave Field ◽  
Phase Reaction ◽  
Reaction Sintering ◽  
Densification Behavior ◽  
Fine Grained ◽  
Microwave Reaction ◽  
Liquid Phase Reaction ◽  
Processing Cycle

AbstractMicrowave reaction sintering of tungsten- carbon-, cobalt mixtures is described as a method that combines the liquid phase reaction sintering of tungsten carbide cobalt hardmetals with the enhanced densification behavior of hardmetals in the microwave field. Starting with green parts composed of W-, Co- powder, soot as carbon source and with varying amount of additives a dense and extremely fine grained hardmetal can be obtained in one pressureless microwave reaction sintering step.By this method hardmetals with improved mechanical properties can be obtained in a drastically simplified processing cycle, without time consuming steps such as carburizing and milling.

Collective processes in liquid-phase reaction sintering

2010 ◽  
Vol 49 (3-4) ◽  
pp. 141-146 ◽  
Author(s):  
V. P. Solntsev ◽  
V. V. Skorokhod ◽  
T. A. Solntseva
Keyword(s):  
Liquid Phase ◽  
Phase Reaction ◽  
Reaction Sintering ◽  
Collective Processes ◽  
Liquid Phase Reaction

Microstructure and Mechanical Properties of Mo2FeB2 Based Cermets with/without Nb Addition

2017 ◽  
Vol 872 ◽  
pp. 56-60 ◽  
Author(s):  
De Qing Ke ◽  
Ying Jun Pan ◽  
Yuan Yuan Xu ◽  
Lin Yang ◽  
Run Wu
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Rupture Strength ◽  
Phase Reaction ◽  
Reaction Sintering ◽  
Densification Behavior ◽  
Microstructural Characteristics ◽  
Nb Content ◽  
Nb Addition ◽  
Liquid Phase Reaction

Four series of Mo2FeB2 based cermets with different Nb content between 0 and 6 wt.% had been successfully fabricated by liquid phase reaction sintering (LPRS). The densification behavior, microstructural characteristics and mechanical properties of Mo2FeB2 based cermets were investigated. The result shows that with the increase of Nb content, the grain size decreased, but more pores formed. Meanwhile, the hardness and transverse rupture strength both be increased first and then decreased. Mo2FeB2 based cermets doped with 4 wt.% Nb content have the highest hardness and TRS of HRA 90.6 and 1970 MPa.

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