Effects of phosphorus grain boundary segregation and hardness on the ductile-to-brittle transition for a 2.25CrlMo steel

被引：6

作者：

Song Shenhua ^{[1
]}

Yuan Zexi

Shen Dongdong

Weng Luqian

机构：

[1] Harbin Inst Technol, Shenzhen Grad Sch, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

[2] Wuhan Univ Sci & Technol, Sch Mat & Met, Wuhan 430081, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2007年 / 22卷 / 01期

基金：

中国国家自然科学基金;

关键词：

segregation; grain boundary; high strength low alloy steel; embrittlement; fracture; LOW-ALLOY STEELS; CLEAVAGE FRACTURE-STRESS; NI-CR STEEL; TEMPER EMBRITTLEMENT; PREDICTION; MOLYBDENUM; IRON;

D O I：

10.1007/s11595-005-1001-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The combined effect of phosphorus grain boundary segregation and hardness on the ductile-to-brittle transition was examined for a P-doped 2.25Cr1Mo steel by using Auger electron spectroscopy in conj. unction with hardness measurements, Charpy impact tests and scanning electron microscopy. With prolonging time at 540 degrees C after water quenching from 980 degrees C, the segregation of phosphorus increases and the hardness decreases. The DBTT (FATT) increases with increasing phosphorus segregation and decreases with decreasing hardness. The effect of phosphorus segregation is dominant until 100 h aging and after that the hardness effect becomes dominant. This effect makes the DBTT (FATT) decrease with further prolonging ageing time although the segregation of phosphorus still increases strongly.

引用

页码：1 / 6

页数：6

共 50 条

[21] Experimental and numerical investigations on ductile-to-brittle transition in a carbon steel
Yan, C
Mai, YW
Wu, SX
ADVANCES IN FRACTURE RESEARCH, VOLS 1-6, 1997, : 189 - 196
[22] The effects of fluids on the deformation and ductile-to-brittle transition of silicon
Patten, JA
Mumford, SV
PROCEEDINGS OF THE FIFTEENTH ANNUAL MEETING OF THE AMERICAN SOCIETY FOR PRECISION ENGINEERING, 2000, : 604 - 607
[23] Experimental and numerical investigation of ductile-to-brittle transition in a pressure vessel steel
Samal, M. K.
Seidenfuss, M.
Roos, E.
Dutta, B. K.
Kushwaha, H. S.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 496 (1-2): : 25 - 35
[24] A crack tip blunting analysis in the ductile-to-brittle transition of a structural steel
Tosal, L
Rodríguez, C
Belzunce, FJ
Betegón, C
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2000, 23 (04) : 365 - 369
[25] MECHANISTIC SIMILARITIES BETWEEN HYDROGEN AND TEMPERATURE EFFECTS ON THE DUCTILE-TO-BRITTLE TRANSITION OF A STAINLESS STEEL.
Sudarshan, T.S.
Harvey II, D.P.
Place, T.A.
Metallurgical transactions. A, Physical metallurgy and materials science, 1988, 19 A (06): : 1547 - 1553
[26] MECHANISTIC SIMILARITIES BETWEEN HYDROGEN AND TEMPERATURE EFFECTS ON THE DUCTILE-TO-BRITTLE TRANSITION OF A STAINLESS-STEEL
SUDARSHAN, TS
HARVEY, DP
PLACE, TA
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1988, 19 (06): : 1547 - 1553
[27] EFFECT OF PRECIPITATION AND GRAIN-SIZE ON THE DUCTILE-TO-BRITTLE TRANSITION IN MILD STEELS
LI, DM
YAO, M
MATERIALS CHEMISTRY AND PHYSICS, 1989, 24 (1-2) : 157 - 162
[28] Effects of Thermal Aging on Ductile-to-Brittle Transition Temperature Behavior of Welded A516 Steel
Khattak, M. A.
Khan, M. A.
Tamin, M. N.
FRACTURE AND STRENGTH OF SOLIDS VII, PTS 1 AND 2, 2011, 462-463 : 1379 - +
[29] Effect of thermal aging on grain structural characteristic and Ductile-to-Brittle transition temperature of CLAM steel at 550 °C
Wang, Wei
Chen, Jianwei
Xu, Gang
FUSION ENGINEERING AND DESIGN, 2017, 115 : 74 - 79
[30] Ductile-to-brittle Transition in a Bimodal-sized Grain Structure for an Ultrafine-grained Ferrite/Cementite Steel
Hanamura, Tshihiro
Zhao, Ming-Chun
Qiu, Hai
Yin, Fuxing
Nagai, Kotobu
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 2009, 95 (01): : 71A - 78A

← 1 2 3 4 5 →