Estimation of the Fracture Toughness Threshold of a Ferritic Steel at the Lower Ductile to Brittle Transition Region

被引：1

作者：

Berejnoi, Carlos ^{[1
]}

Vacca, Santiago ^{[2
]}

Galarza, Claudia ^{[1
]}

Perez Ipina, Juan Elias ^{[3
,4
]}

机构：

[1] Univ Nacl Salta, Consejo Invest Univ Nacl Salta CIUNSa, Fac Ingn, Avda Bolivia 5500, Salta, Argentina

[2] Univ Republica, Inst Ensayo Mat, Fac Ingn, Montevideo, Uruguay

[3] Univ Nacl Comahue, Grp Mecan Fractura, Neuquen, Argentina

[4] Consejo Nacl Invest Cient & Tecn, Neuquen, Argentina

来源：

MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS | 2016年 / 19卷 / 05期

关键词：

ferritic steels; fracture toughness; scatter; threshold; weakest link; DATASET;

D O I：

10.1590/1980-5373-MR-2015-0513

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ADN420 ferritic steel (A615 steel Grade 60 [420]), used as reinforcing bars (rebar) in concrete, shows the so called ductile to brittle transition. Room temperature is located on the lower third region of the transition zone. In this work, the fracture toughness of this steel working at room temperature was studied statistically. For such a purpose, 125 compact test specimens were machined from commercial bars and tested at room temperature to determine the Jc and K-Jc critical fracture toughness values. Several continuous probability functions with threshold parameter were adjusted to the J and K datasets.

引用

页码：1102 / 1107

页数：6

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