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| Effect of Additive Cu��10Sn Alloy on Sintering Behavior of Elemental Powders in Composition of 465 Stainless Steel |
| Farid Akhtar1,2 |
| 1. Department of Metallurgical and Materials Engineering, University of Engineering and Technology, Lahore 54890, Pakistan;2. Institute of Powder Metallurgy, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract The addition of Cu��10Sn alloy for developing the high strength 465 maraging stainless steel from elemental powders was studied. The sintering parameters investigated include the sintering temperature, the sintering time, and the mass percent of Cu��10Sn. For vacuum sintering, effective sintering occurs at temperature between 1 250 �� and 1 300 ��. The maximum sintered density was achieved at 1 300 �� for 60 min with 3% (in mass percent) Cu��10Sn alloy. More than 3% (in mass percent) Cu��10Sn content and temperature above 1 300 �� caused slumping of the samples. A maximum density of 7��4 g/cm3 was achieved with 3% (in mass percent) Cu��10Sn content at a sintering temperature of 1 300 �� for 60 min. A maximum ultimate tensile strength (UTS) of 517 MPa was achieved with 3% (in mass percent) Cu��10Sn content. With content higher than 2% (in mass percent) Cu��10Sn, a maximum increase in the density was observed. The fracture morphologies of the sintered samples are also reported.
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Received: 01 January 1900
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2007, Vol. 14 
