Effect of heating mode on the densification and microstructural homogenization response of premixed bronze

Upadhyaya, Anish; Sethi, Guneet

doi:10.1016/j.scriptamat.2006.11.031

Cited by 23 publications

(14 citation statements)

References 14 publications

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“…This new method is environmentally friendly and saves material, labor and energy. Upadhyaya and Sethi (2007) investigated the effect of different heating and homogenization processes on mechanical behavior of sintered CuSn10 alloy. Fogagnolo et al (2003) studied the recycling of aluminum chips by cold pressing at room temperature followed by hot extrusion.…”

Section: Methodsmentioning

confidence: 99%

11Production and Mechanical Properties of Bronz/Steel Chips Composite Materials Produced by Direct Recycling

Karadağ

Akdemir

2019

Hittite J. Sci. Eng.

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M etallic chips formed during machining are generally recycled by melting and casting. This procedure results in oxidation of the materials and degradation of the material properties. Additionally, the aforementioned procedure requires high energy consumption and the emission of harmful gases. Additionally, these processes are inefficient and expensive (Gronostajski et al, 1997). It has been reported (Lazzaro and Vittori, 1992) that the process of melting aluminum alloy chips results in 10% burning and 10% slag formation. Additionally, the direct conversion of aluminum chips into compact metal results in 40% material savings, 26-31% energy savings and 16-60% labor savings (Chmura and Gronostajski, 2006). Solid state recycling is an effective and energy efficient process due to the prevention of oxidation compared with melting processes. Solid state recycling was first proposed by Nakanishi et al. (1995) for recycling magnesium alloy chips and scrap. Lee et al. (1995) and Liu et al. (2002) also conducted research on AZ91D and AZ80 magnesium alloys using solid state recycling. In

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Section: Methodsmentioning

confidence: 99%

11Production and Mechanical Properties of Bronz/Steel Chips Composite Materials Produced by Direct Recycling

Karadağ

Akdemir

2019

Hittite J. Sci. Eng.

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“…Compared with the traditional heating process, the heating efficiency of microwave is mainly come from the polarization of the alternating electromagnetic field, which makes the dipoles of inner material turning around repeatedly, resulting in a stronger vibration and friction, thereby heating the material [6]. Microwave sintering has a lot of merits, such as energy and time saving [7][8][9][10], and reducing production cost and energy consumption is of great significance, so that it has considerable prospective potential when it is introduced into production manufactures of powder metallurgy materials. But the traditional views indicated that the metal reflects microwave as a conductor, so the microwave could not be used to heat the metal.…”

Section: Introductionmentioning

confidence: 99%

Consolidation of MA W-Ni-Fe Alloyed Powder by Microwave-Assisted Sintering

Liu¹,

Cai³

2011

MSA

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MA W-Ni-Fe alloyed powder compact was sintered by microwave technology, and the influence of microwave sintering on consolidation of W-Ni-Fe alloy was studied. The fracture morphology and microstructure of alloys were measured by SEM and metallurgical microscope. The experimental results showed that microwave sintering promoted the densification of MA W-Ni-Fe alloyed powder quickly with the higher heating rate. The density of the sintered samples increased with the increase of sintering temperature, and significant densification shrinkage occured at 1300 ~ 1400°C. The tungsten grain grew rapidly at 1450°C. When the alloy was microwave sintered at 1550°C, the inner structure of alloy is more homogeneous, the average W grain size is about 15 μm, and the relative density of sintered specimen is 99%

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“…Sintering can be done by traditional methods of heating such as resistance heating 6,7 or by the more recently introduced method of using microwaves. [8][9][10][11][12][13][14][15][16] In a typical resistance heating furnace, the direction of heating is from the outside to the inside of the powder compact, while for microwaves the direction of heating is from the inside to the outside. The former results in poor microstructural characteristics in the core of the powder compact while the latter results in poor microstructural characteristics of the surface.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Mechanical Response of a Lead-Free Solder Using an Energy-Efficient Microwave Sintering Route

Babaghorbani

Gupta

2008

Journal of Elec Materi

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This study compares the effects of conventional and microwave sintering on the densification, microstructure, and tensile properties of a lead-free solder, Sn-3.5Ag. Conventional sintering was carried out in an inert atmosphere while microwave sintering was performed under ambient conditions. Microstructural characterization was carried out to investigate characteristics of grains, pores, and Ag 3 Sn intermetallic compounds. Tensile characterization studies revealed that 0.2% yield strength, ultimate tensile strength, and work of fracture were significantly increased by using microwave sintering.

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Effect of heating mode on the densification and microstructural homogenization response of premixed bronze

Cited by 23 publications

References 14 publications

11Production and Mechanical Properties of Bronz/Steel Chips Composite Materials Produced by Direct Recycling

11Production and Mechanical Properties of Bronz/Steel Chips Composite Materials Produced by Direct Recycling

Consolidation of MA W-Ni-Fe Alloyed Powder by Microwave-Assisted Sintering

Enhancing the Mechanical Response of a Lead-Free Solder Using an Energy-Efficient Microwave Sintering Route

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