Study on Squeeze Casting Metal-zirconium Composite Die Material by Hot Press Sintering
Yonggen Sun , Zhiming Du , Lili Chen , Yanhan Fei , Yuansheng Cheng
Journal of Wuhan University of Technology Materials Science Edition ›› 2021, Vol. 36 ›› Issue (4) : 484 -489.
Study on Squeeze Casting Metal-zirconium Composite Die Material by Hot Press Sintering
ZrO2-5CrMnMo composite samples were prepared by hot press sintering. When NiCoCrAlY powders were used as the bonding layer and the different mixtures of NiCoCrAlY alloy and 3YSZ (3mol% yttria stabilized zirconia) ceramic powders were used as the transition layers, the connection between zirconia ceramic and 5CrMnMo steel were strengthened. Three composite samples with different structures were fabricated by heat spraying and hot press sintering. Shear and thermal shock cycle tests were conducted to characterize connection strength and thermal shock resistance of these samples. The shear strength reached 95.69 MPa, and the heating shock cycles achieved to the maximum value of 27.7 times. Microstructures and connection interfaces were analyzed by scanning electron microscopy. The hardness and wearing resistance of 3YSZ coat and 5CrMnMo substrate were compared, and the heat insulation property of composite samples were also discussed. It is shown that these composite materials fabricated in this research are benefited to be used as squeeze casting dies.
composite materials / hot press sintering / thermal shock resistance / thermal insulation / squeeze casting
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
Xiao GH., Xu CH, Chen ZQ, et al. Research on the Hot Pressing Parameters of Ti (C, N)/Al2O3 Nano-composite Ceramic Die Material and the Material Fabrication[J]. Key Engineering Materials, 2013: 589–590, 594–599 |
| [26] |
Teulet P. Method of Producing Metal Mould Cavities be means of Ceramic and Metal Power Sintering[P]. US 2006/0231975 A1, Oct. 19, 2006 |
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
/
| 〈 |
|
〉 |