Microstructure and mechanical properties of nonmagnetic Fe-25Mn-xCu-C steels by super solidus liquid phase sintering

Jia, Shanquan; Xiao, Zhiyu; Wang, Jun; Yang, Shuo; Guan, Hangjian; Zhu, Qiang

doi:10.1088/2053-1591/3/11/116502

Cited by 4 publications

(1 citation statement)

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“…One of the alloys is brass, which is frequently sintered in the semisolid regime, a technique also called Supersolidus Liquid Phase Sintering (SLPS) [1], which is a variant of liquid phase sintering [2][3][4][5][6]. Prealloyed powders are heated to a range between the solidus and liquidus temperatures of the alloy [7][8][9][10][11]. A densification theory for SLPS involves the formation of thin liquid films on the internal interfaces of prealloyed powders.…”

Section: Introductionmentioning

confidence: 99%

The role of pore evolution during supersolidus liquid phase sintering of prealloyed brass powder

et al. 2020

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The aim of this research is to study the pore structure as well as to assess the liquid phase sintering behaviour of Cu-28Zn powder specimens at different green density levels and temperatures. For this purpose, samples were compacted to obtain six different green densities and then sintered at 870°C, 890°C and in part at 930°C for 30 min. The results revealed that the spherical pores which are formed inside the grains can be swept by grain boundaries due to grain growth and join to primary pores so that secondary intragranular pores are eliminated and intergranular pores enlarged at higher temperatures. Also, the pores move upwards to the top of sample due to buoyancy forces. The role of pore structure in distortion is more tangible at higher temperatures (930°C) so that O-shape and X-shape distortions were observed at high and low green density samples, respectively.

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