The Precipitation Strengthening Effect of Nb, Ti and Al in Cast/Wrought Ni-Base Superalloys

The Precipitation Strengthening Effect of Nb, Ti and Al in Cast/Wrought Ni-Base Superalloys
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DOI：
10.4028/www.scientific.net/msf.638-642.2363
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发表时间：
2010-01
期刊：
Materials Science Forum
影响因子：
--
通讯作者：
X. Xie;S. Fu;Shuangqun Zhao;J. Dong
X. Xie;S. Fu;Shuangqun Zhao;J. Dong
中科院分区：
其他
文献类型：
--
作者：
X. Xie;S. Fu;Shuangqun Zhao;J. Dong

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研究了INCONEL718型和新研制的INCONEL740®镍基高温合金中、+、+相的第二相析出强化效果及其组织稳定性。实验结果表明，精心控制Nb、Ti和Al对合金进行改性，不仅可以提高合金的强度，还可以改善合金的高温稳定性。这些改良的新开发的合金建议在更高的温度下使用。
The second phase precipitation strengthening effect of , +, + phases in INCONEL718 type and newly developed INCONEL740® Ni-base superalloys and their structure stability have been studied. Experimental results show that careful control of Nb, Ti and Al for alloy modification can not only raise their strengths but also improve structure stability at high temperatures. These modified newly developed alloys are suggested to be used at higher temperatures.