Liquid phase sintering mechanism and densification behavior of boron-alloyed Fe-Ni-Mo-C-B powder metallurgy steel

2017 ◽  
Vol 133 ◽  
pp. 536-548 ◽  
Author(s):  
Ming-Wei Wu ◽  
Wen-Zhang Cai ◽  
Zih-Jie Lin ◽  
Shih-Hsien Chang
Keyword(s):  
Powder Metallurgy ◽  
Liquid Phase ◽  
Liquid Phase Sintering ◽  
Densification Behavior ◽  
Powder Metallurgy Steel ◽  
Sintering Mechanism ◽  
Metallurgy Steel

scholarly journals Interpretation of Frenkel’s theory of sintering considering evolution of activated pores: II. Model and reliability

2015 ◽  
Vol 47 (1) ◽  
pp. 89-94
Author(s):  
C.L. Yu ◽  
D.P. Gao ◽  
S.M. Chai ◽  
Q. Liu ◽  
H. Shi ◽  
...  
Keyword(s):  
Differential Equation ◽  
Partial Differential Equation ◽  
Liquid Phase ◽  
Liquid Phase Sintering ◽  
Order Partial Differential Equation ◽  
Partial Differential ◽  
First Order ◽  
Sintering Time ◽  
Sintering Mechanism ◽  
Cordierite Glass

Frenkel's liquid-phase sintering mechanism has essential influence on the sintering of materials, however, by which only the initial 10% during isothermal sintering can be well explained. To overcome this shortage, Nikolic et al. introduced a mathematical model of shrinkage vs. sintering time concerning the activated volume evolution. This article compares the model established by Nikolic et al. with that of the Frenkel's liquid-phase sintering mechanism. The model is verified reliable via training the height and diameter data of cordierite glass by Giess et al. and the first-order partial differential equation. It is verified that the higher the temperature, the more quickly the value of the first-order partial differential equation with time and the relative initial effective activated volume to that in the final equibrium state increases to zero, and the more reliable the model is.

Effect of sinter hardening on mechanical properties of Astaloy CrM powder metallurgy steel

2012 ◽  
Vol 7 (9) ◽  
pp. 955-958 ◽  
Author(s):  
Sheikhi Moghaddam ◽  
H. Farhangi ◽  
M. Ghambari ◽  
N. Solimanjad
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Powder Metallurgy Steel ◽  
Metallurgy Steel
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