Stress-corrosion-crack initiation and growth-rate studies on titanium grade 7 and Alloy 22 in concentrated groundwater

被引：6

作者：

Andresen, PL ^{[1
]}

Young, LM

Catlin, GM

Emigh, PW

Gordon, GM

机构：

[1] GE Global Res, Schenectady, NY 12309 USA

[2] AREVA Framatome ANP, Las Vegas, NV 89144 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2005年 / 36A卷 / 05期

关键词：

Material Transaction; Crack Growth Rate; Shot Peening; Lawrence Livermore National Laboratory; Crevice Corrosion;

D O I：

10.1007/s11661-005-0211-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The stress-corrosion-crack initiation and growth-rate response was evaluated on as-received, cold-worked, and aged Alloy 22 (UNS N06022) and titanium Grade 7 in 105 degrees C to 110 degrees C, aerated, concentrated, high-pH groundwater environments. Time-to-failure experiments on actively loaded tensile specimens evaluated the effects of applied stress, welding, surface finish, shot peening, cold work, crevicing, and aging treatments in Alloy 22. Titanium Grade 7 and stainless steels were also included in the matrix. Long-term crack-growth-rate data showed stable crack growth in titanium Grade 7. Alloy 22 exhibited stable growth rates under "gentle" cyclic loading, but was prone to crack arrest at fully static loading. No effect of Pb additions was observed.

引用

页码：1187 / 1198

页数：12

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