Creep rupture of alloy 718 after thermal aging

被引：6

作者：

Korth, GE ^{[1
]}

机构：

[1] Bechtel BWXT Idaho LLC, Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA

来源：

JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY | 2000年 / 52卷 / 01期

关键词：

Thermal Aging; Thermal Exposure; Aged Material; Rupture Life; Creep Rupture;

D O I：

10.1007/s11837-000-0114-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alloy 718 given the conventional 718/621 degrees C age-hardening treatment was thermally aged at 593 degrees C, 621 degrees C, nod 649 degrees C for up to 50,000 h. These temperatures bracket Nle lowest of lire duplex age-hardening temperatures. Subsequent creep-rupture tests conducted at the same temperature thermal aging show no detrimental effects of 593 degrees C aging after 50,000 h. Material aged for 50,000 h and tested at 621 degrees C shows the rupture life to be approximately 60-65% of the unaged material, but at 649 degrees C, the aged material rupture life is on the order of 15% of the unaged material.

引用

页码：40 / +

页数：3