Mechanical Properties of SUS301L Stainless Steel Welded Joints for Railway Vehicles

Abstract:

The tensile and the fatigue tests of three different rolling states of SUS301L stainless steel welded joints were investigated, and their S-N curves were obtained and analyzed. The typical fracture morphology of fatigue specimens were observed by scanning electron microscopy (SEM). The results indicate that the tensile strength and the yield strength of three kinds of SUS301L stainless steel welded joints increase with increasing of rolling degrees, while only the elongation rate decreases with the increasing of rolling degrees; the median fatigue limit of SUS301L-DLT、SUS301L-ST、SUS301L-MT for fatigue life 2×106 cycles are 247.5MPa, 331MPa, 266.7MPa.

• Periodical: Advanced Materials Research (Volumes 503-504)
• Pages: 441-445
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.503-504.441
• Online since: April 2012
• Authors: Lan Zhan, Chun Yuan Shi
• Keywords: Fatigue Test, Fracture Morphology, SUS301L Stainless Steel, Tensile Test

References

[1] BOB RVING(America): Foreign locomotive vehicle technology Vol. 1(1999), p.52–56.

[2] Gangqing Li, Xiaohui Han: Locomotive vehicle technology Vol. 1(2004), p.1–4.

[3] Neitianboxing: Foreign locomotive vehicle technology Vol. 3(2004), p.1–9.

[4] Bing Wu, Xinqi Yang: Mechanical strength Vol. 26(2004), p.321–325.

[5] Xiaoning Zhao: Construction and Design Vol. 7(2004), p.50–51.

[6] Shuguang Yao, Ping Xu: Urban rail transport research Vol. 5(2004), p.82–84.

[7] Zhentong Gao, Fatigue the application of statistics [M]，BeiJing，National Defense Industry Press, (1986).

[8] Qiang Zhang, Xingpeng Guo, Neng 6. li Daiand Peixiang Lu, Mater. Sci. Technol Vol. 2(2009), p.187–193.

[9] Yu Liu, QiXun Dai et. al: Metal Heat Treatment Vol. 34 No. 4(2009), p.56–59.

[10] Yuexian Cui, Changli Wang. Metal fracture analysis[M]. Harbin Institute of Technology, 1998: 76-124.