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OALib Journal期刊
ISSN: 2333-9721
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施载方向对定向凝固镍基高温合金高温蠕变行为的影响
, PP. 689-695
Keywords: 施载方向,定向凝固,镍基高温合金,高温蠕变,蠕变断裂
Abstract:
研究了施载方向对定向凝固镍基高温合金980℃130—190MPa蠕变及断裂性能的影响结果表明三种取向试样的蠕变曲线相似，稳态蠕变均由位错的攀移过程所控制因蠕变断裂机制不同，纵向试样比横向及倾斜试样表现了高得多的啼变塑性，前者为完全穿晶断裂，后两者为明显的沿晶断裂
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