Effect of Sinter Hardening on Microstructure and Mechanical Properties of Astaloy 85Mo

被引：0
作者：
K. Sheikhi Moghaddam
M. Ghambari
H. Farhangi
N. Solimanjad
机构：
[1] College of Engineering University of Tehran,School of Metallurgy and Materials Engineering
[2] Höganäs AB,undefined
来源：
Journal of Iron and Steel Research International | 2012年 / 19卷
关键词：
sinter hardening; Astaloy 85Mo; cooling rate; bainitic microstructure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Effect of sinter hardening on the microstructure, density, hardness and tensile properties of Astaloy 85Mo+ 0.7% graphite was investigated. For this purpose, Astaloy 85Mo, a pre-alloyed powder, was mixed with 0.7% UF4 graphite and then pressed in single action die and sintered at 1120 °C for 30 min in N2-10%H2 atmosphere. Then samples were cooled from 0.5 to 3 °C/s sintering temperature in accordance with different cooling rates. The difference in microstructure, hardness, density and tensile properties of the samples associated with different cooling rates from sintering temperature has been investigated. The results show that the microstructure remains bainitic by changing cooling rate, but it becomes finer and then the hardness and tensile strength of the samples will increase by increasing the cooling rate from sintering temperature.
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页码：43 / 46
页数：3
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共 24 条
  • [1] Bocchini G F(2002)Influence of Cooling Rate on Microstructural and Mechanical Properties of Alloys From Diffusion-Bonded Powders, Sintered in Different Conditions [J] Powder Metal Sci and Tech 4 16-undefined
  • [2] Rivolta B(2003)The Effect of Boron Liquid Phase Sintering on Properties of Ni-, Mo- and Cr-Alloyed Structural Steels [J] J Mater Process Technol 141 379-undefined
  • [3] Silva G(2000)Liquid Phase Sintering of Iron-Carbon Alloys With Boron Additions [J] Powder Metall 43 57-undefined
  • [4] Selecka A(2008)Fe-Mo-B Enhanced Sintering of P/M 316L Stainless Steel [J] J Iron Steel Res Int 15 10-undefined
  • [5] Salak A(2005)Liquid Generation During Sintering of Fe-3.5%Mo Powder Compacts [J] Powder Metallurgy 48 59-undefined
  • [6] Danninger H(2004)Microstructural and Mechanical Characterization of Some Sinter Hardening Alloys and Comparisons With Heat Treated PM Steels [J] Powder Met 47 343-undefined
  • [7] Liu J(2003)Low Alloy Steels for Sinter Hardening [J] J Powder Metall Int 13 1-undefined
  • [8] Cardamone A(2001)Axial Fatigue Behavior of Binder-Treated Versus Diffusion Alloyed Powder Metallurgy Steels [J] J Mater Sci Eng 308A 180-undefined
  • [9] Potter T(2006)Influence of Sintering Parameters on Tensile Strength of Warm Compacted Fe-2Ni-2Cu-lMo-lC Material [J] Chinese J Nonferrous Met 168 1326-undefined
  • [10] Yang X(undefined)undefined undefined undefined undefined-undefined
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