A Novel near Net-Shape Technique for P/M Parts with Large H/D Ratio

材料科学技术（英文）, 2002, 18(5): 410-412.

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1.State Key Lab for P/M, Central South University, Changsha 410083, China

2.State Key Lab for P/M, Central South University, Changsha 410083, China

3.State Key Lab for P/M, Central South University, Changsha 410083, China

4.State Key Lab for P/M, Central South University, Changsha 410083, China

5.State Key Lab for P/M, Central South University, Changsha 410083, China

A Novel near Net-Shape Technique for P/M Parts with Large H/D Ratio

Keywords： Near net-shape technique

In order to overcome the shortcomings of conventional hot pressing, a novel near net-shape technique, called radial hotpressing, for P/M parts with large height-to-diameter (H/D) ratio was introduced. Effects of processing parameters on themicrostructures and density of P/M TiAl base alloy valves were studied. Results show that the radial hot pressing is an effectivetechnique for manufacturing valves with a H/D ratio of about 10:1, and the perfect joint interface between the Mo sheet andthe parts is helpful for subsequent HIPing.

参考文献

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A Novel near Net-Shape Technique for P/M Parts with Large H/D Ratio

参考文献