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Prediction of the long-term strength of pipeline metal taking account of crack development under creep conditions

被引：0
|
作者：
Gladshtein V.I. [1 ]
机构：
[1] All-Russia Heat Technology Institute, Moscow
来源：
Strength of Materials | 1997年 / 29卷 / 1期
关键词：
Crack Growth Rate; Final Fracture; Creep Condition; Minimum Creep Rate; Smooth Specimen;
D O I：
10.1007/BF02767574
中图分类号：
学科分类号：
摘要：
A procedure which makes it possible to predict the long-term strength of smooth specimens from the endurance and nominal breaking of cylindrical specimens with a sharp notch without exceeding the working temperature is substantiated theoretically and proved by experiment for pipeline steels (12KhlMF, 15KhlMlFL, 20KhMFL). This prediction makes it possible to reveal more reliably the breaking point on the long-term strength curve and to provide reliable results for evaluating high-temperature strength with much shorter tests. © 1997 Plenum Publishing Corporation.
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页码：39 / 47
页数：8
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