THE MECHANICAL PROPERTIES AT ROOM AND LOW TEMPERATURE OF P110 STEEL CHARACTERISED BY MEANS OF SMALL PUNCH TEST

被引：1

作者：

Romelczyk-Baishya, B. ^{[1
]}

Lumelskyj, D. ^{[2
]}

Stepniewska, M. ^{[1
]}

Gizynski, M. ^{[1
]}

Pakiela, Z. ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Mat Sci & Engn, 141 Woloska Str, PL-02507 Warsaw, Poland

[2] Polish Acad Sci, Inst Fundamental Technol Res, Warsaw, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2019年 / 64卷 / 01期

关键词：

small punch test; carbon steel P110; small samples; low temperature; mechanical properties; BRITTLE TRANSITION; CREEP PROPERTY; DUCTILE;

D O I：

10.24425/amm.2019.126232

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this paper small punch test (SPI) which is one of miniaturized samples technique, was employed to characterize the mechanical properties of carbon steel P110. The tests were carried out in the range of -175 degrees C to RT. Results obtained for SPT were compared to those calculated for tensile and Charpy impact test. Based on tensile and SPT parameters numerical model was prepared. 8 mm in diameter and 0.8 mm in height (t) discs with and without notch were employed in this research. The specimens had different depth notch (a) in the range of a 1 to 0.4 mm. It was estimated that alpha factor for comparison of Tsp and DBTT for carbon steel P110 is 0.55 and the linear relation is DBTT = 0.55T(SPT). The numerical model fit with force - deflection curve of SPT. If the factor of notch depth and samples thickness is higher than 0.3 the fracture mode is transformed from ductile to brittle at -150 degrees C.

引用

页码：159 / 165

页数：7

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