scholarly journals Microstructure and Mechanical Properties of 17-4PH Steel and Fe-Cr-B Alloy Mixed Material Manufactured Using Powder Injection Molding

2018 ◽  
Vol 56 (5) ◽  
pp. 342-349 ◽  
Author(s):  
Yeun-Ah Joo ◽  
Young-Kyun Kim ◽  
Tae-Sik Yoon ◽  
Kee-Ahn Lee
2007 ◽  
Vol 26-28 ◽  
pp. 355-358
Author(s):  
Chang Kyu Kim ◽  
Chang Young Son ◽  
Dae Jin Ha ◽  
Tae Sik Yoon ◽  
Sung Hak Lee

Powder injection molding (PIM) process was applied to Fe-based metamorphic alloy powders, and microstructure, hardness, and wear resistance of the PIM products were analyzed and compared with those of conventional PIM stainless steel products. When Fe-based metamorphic powders were injection-molded and then sintered at 1200 oC, completely densified products with almost no pores were obtained. They contained 34 vol.% of (Cr,Fe)2B borides dispersed in the austenitic matrix without amorphous phases. Since these (Cr,Fe)2B borides were very hard and thermally stable, hardness, and wear resistance of the PIM products of Fe-based metamorphic powders were twice as high as those of conventional PIM stainless steel products. Such property improvement suggested new applicability of the PIM products of Fe-based metamorphic powders to structures and parts requiring excellent mechanical properties.


2014 ◽  
Vol 40 (6) ◽  
pp. 7915-7921 ◽  
Author(s):  
Chang-rui Wang ◽  
Hong Xiao ◽  
Kui-wu Shao ◽  
Zhen Lu ◽  
Kai-feng Zhang

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