Inconel 617 and Stellite 6 alloys for tooling in thixoforming of steels

摘要：

Thermal fatigue and high temperature wear are the two principle failure mechanisms for thixoforming dies.Samples of Inconel 617 and Stellite 6 alloys were submitted to thermal cycling under conditions which approximate thixoforming of steels and to sliding wear tests at 750 ℃.The experimental results thus obtained were compared with those of the X32CrMoV33 hot work tool steel.The Inconel 617 and Stellite 6 samples are much more resistant to oxidation and to softening than the hot work tool steel,providing a superior resistance to thermal fatigue cracking.The wear resistance of the Inconel 617 and Stellite 6 alloys at 750 ℃ is also markedly superior.The adhesive oxides growing slowly on Inconel 617 and Stellite 6 alloys sustain the wear action without spalling and are claimed to be responsible for the superior wear resistance of these alloys at 750 ℃.

关键词： steel thixoforming tooling thermal fatigue wear

作者: Y.BIROL

作者单位: Materials Institute, Marmara Research Centre, TUBITAK, Gebze, Kocaeli 41470, Turkey

会议类型: 国际会议

会议名称: The 11th International Conference on Semi-Solid Processing of Alloy and Composites(第11届合金与复合材料半固态成形国际会议)

会议地点: 北京

会议语种:英文

页码: 1656-1662

在线出版日期: 2010-09-16（万方平台首次上网日期，不代表论文的发表时间）