Fatigue properties of reinforcing steel produced by TEMPCORE process

被引：43

作者：

Zheng, H ^{[1
]}

Abel, AA ^{[1
]}

机构：

[1] Univ Sydney, Dept Civil Engn, Sydney, NSW 2006, Australia

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 1999年 / 11卷 / 02期

关键词：

D O I：

10.1061/(ASCE)0899-1561(1999)11:2(158)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

TEMPCORE is a patented mill process that produces high-strength reinforcing steel bars via inline quenching and self-tempering. This paper reports on the fatigue performance of 400 MPa-grade reinforcing steel produced by TEMPCORE process, called TEMPCORE steel in this paper. Seven bar diameters were axially fatigue-tested in air, and the results in terms of S-N curves and failure features are presented, and compared with test data for other types of reinforcing steels from the literature. Comparisons indicate that this type of reinforcing steel has higher fatigue resistance. Although the general geometrical features are similar to those of other types of reinforcing steels, existing models fail to predict its fatigue properties. It is suggested that the metallurgical microstructure and residual stresses developed during the TEMPCORE process contribute to the superior fatigue properties and must therefore be considered in the models.

引用

页码：158 / 165

页数：8