Dynamic embrittlement in alloy 718

被引：0
|
作者：
Pfaendtner, JA [1 ]
McMahon, CJ [1 ]
机构：
[1] Gen Elect Aircraft Engines, Cincinnati, OH USA
来源：
SUPERALLOYS 718, 625, 706 AND VARIOUS DERIVATIVES | 2001年
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D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The oxygen-induced intergranular cracking of alloy 718 under static loads has been found to be similar to that of sulfur-induced cracking in steels, tin-induced cracking in a Cu-Sn alloy, and oxygen-induced cracking in Cu-0.25%Be and in Ni3Al, all under static loads. These are all examples of a type of fracture called "dynamic embrittlement." This appears to be the same phenomenon as observed during cyclic loading of alloy 718, especially with extended hold times, and it is considered that the cyclic nature of the loading is incidental to the cracking process.
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页码：701 / 707
页数：7
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