Effect of Geometrical Characteristics of Inclusions on Initiation and Propagation of Cracks in X80 Pipeline Steel during Tensile Test

TONG Ke; HE Xiao-dong; WEI Zun-yi; ZHU Li-xia; FENG Yao-rong; LIU Qiang

Materials and Mechanical Engineering > 2012 > 36(5): 22-25.

TONG Ke, HE Xiao-dong, WEI Zun-yi, ZHU Li-xia, FENG Yao-rong, LIU Qiang. Effect of Geometrical Characteristics of Inclusions on Initiation and Propagation of Cracks in X80 Pipeline Steel during Tensile Test[J]. Materials and Mechanical Engineering, 2012, 36(5): 22-25.

Citation:

PDF (2625 KB)

Effect of Geometrical Characteristics of Inclusions on Initiation and Propagation of Cracks in X80 Pipeline Steel during Tensile Test

More Information

Received Date: December 22, 2011

Graphical Abstract

Abstract

Abstract

The effect of size and shape of inclusions in X80 pipeline steel on crack initiation and propagation during tensile test was studied by scanning electron microscopy in-situ observation. The results show that the larger the size of an inclusion, the more the number of cracks initiated in the inclusion, and the lower the stress of the first crack initiation. The shape and size of inclusions determined the location of the first crack initiation, and the size and shape of inclusions had not remarkable effect on the tensile strength of X80 pipeline steel.
- X80 pipeline steel,
- inclusion,
- in-situ observation,
- crack initiation and propagation

FullText(HTML)

References (13)

References

[1]	HUO Chun-yong, LI Yang, ZHUANG Chuan-jing, et al. Application of X80 linepipe in China[C]// The 3rd International Seminar on High Strength Line Pipe Proceedings.Xi′an: CNPC Tubular Goods Research Institute, 2010.
[2]	仝珂, 庄传晶, 刘强, 等.高钢级管线钢中M/A岛的微观特征及其对力学性能的影响[J].机械工程材料, 2011, 35(2): 4-7.
[3]	高惠林, 辛希贤.论管线钢韧性的控制因素[J].焊管, 1995, 18(5): 7-11.
[4]	HUANG F, LIU J, CHENG Z J, et al. Effect of microstructure and inclusions on hydrogen induced cracking susceptibility and hydrogen trapping efficiency of X120 pipeline steel[J].Materials Science and Engineering A, 2010, 527: 6997-7001.
[5]	CARNEIRO R A, RATNAPULI R C, LINS V C. The influence of chemical composition and microstructure of API linepipe steels on hydrogen induced cracking and sulfide stress corrosion cracking[J].Materials Science and Engineering A, 2003, 357: 104-110.
[6]	LOPEZ H F, RAGHUNATH R, ALBARRAN J L, et al. Microstructural aspects of sulfide stress cracking in an API X80 pipeline steel[J].Metallurgical and Materials Transactions A, 1996, 27: 3601-3611.
[7]	黄一新, 尹雨群, 李晶, 等.X70管线钢中夹杂物控制试验研究[J].南钢科技与管理, 2007(3): 8-10.
[8]	熊庆人, 冯耀荣, 霍春勇, 等.X70管线钢断口分离现象分析研究[J].焊管, 1995, 18(5): 7-11.
[9]	API Spec 5L-2009 Petroleum and natural gas industries-steel pepe for pipeline transportation systems[S].
[10]	ZENG Yan-ping, FAN Hong-mei, WANG Xi-shu, et al. Study on micro-mechanism of crack initiation and propagation induced by inclusion in ultra-high strength steel[J].Key Engineering Materials, 2007, 353/358: 1185-1190.
[11]	王习术, 梁锋, 曾燕屏, 等.夹杂物对超高强度钢低周疲劳裂纹萌生及扩展影响的原位观测[J].金属学报, 2005, 41(12): 1272-1276.
[12]	曾燕屏, 张麦仓, 董建新, 等.镍基粉末合金中夹杂物导致裂纹萌生及扩展行为[J].材料工程, 2005(3): 10-13.
[13]	仝珂, 庄传晶, 朱丽霞, 等.高钢级管线钢微观组织特征与强韧性能关系的研究及展望[J].材料导报, 2010, 24(2): 98-101.

Cited By

Get Citation

PDF

XML

Article views (2) PDF downloads (0)

Turn off MathJax

Article Contents

Abstract

References

Effect of Geometrical Characteristics of Inclusions on Initiation and Propagation of Cracks in X80 Pipeline Steel during Tensile Test

Abstract

References

Catalog

Export File

Citation

Format

Content