Fracture toughness and fatigue crack growth properties of the base metal and weld metal of a type 304 stainless steel pipeline for LNG transmission

被引：45

作者：

Baek, JH ^{[1
]}

Kim, YP ^{[1
]}

Kim, WS ^{[1
]}

Kho, YT ^{[1
]}

机构：

[1] Korea Gas Corp, R&D Ctr, Kyunggi Do 425790, South Korea

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2001年 / 78卷 / 05期

关键词：

stainless steel; LNG; CTOD; fatigue crack growth rate; fracture toughness;

D O I：

10.1016/S0308-0161(01)00040-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fatigue crack growth rate and CTOD tests on type 304 stainless steel and weld metal were studied over the temperature range -162 degreesC to room temperature. The girth weld metal specimens were fabricated using a combination of gas-tungsten-arc-welding and shielded-metal-arc-welding. The seam weld joint was made by submerged are welding. Fracture toughness was evaluated through CTOD tests with three point bend specimens. The fatigue crack growth rate tests were conducted using compact tension specimens in accordance with ASTM E647. The CTOD values were affected by crack orientation with respect to the rolling direction, but orientation had no influence on the fatigue crack growth rates. The fatigue crack growth rates and the CTOD values decreased with decreasing test temperature. (C) 2001 Elsevier Science Ltd. AU rights reserved.

引用

页码：351 / 357

页数：7

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