Tensile properties and fatigue behavior of AHSS-DP 350/600 subjected to laser shock processing

Document Type : Research Paper

Authors

1 University of Education, Winneba

2 University of Education,Winneba

Abstract

This work presents the effects of strain rate on the tensile properties and fracture morphologies of AHSS-DP 350/600 subjected to LSP. Fatigue crack growth test was performed to evaluate fatigue behavior in the metallic plate of AHSS-DP350/600. However, this material is used in automobile industry and enhancing it fatigue resistance is a challenge in material engineering. In order to evaluate and compare the influence of the microstructure on their mechanical and chemical properties, tensile and hardness test were performed and analysis. This revealed that the LSPed specimens have higher values of yield stress, maximal stress, Young’s modulus than non-LSP specimens, the elongation and hardness as a result of their porosity and pore size influenced. It was observed that the macroscopic (tensile tests) and microscopic (microhardness tests) properties of the non-LSP are sensitive to these defects generated during the material machining process and LSP specimens could prolong the material working life.

Keywords

References

[1] Davis, J.R.,“Stainless Steel. In ASM Specialty Handbook”, 1st Ed. ASM International, Northeast, OH, USA, (1994).
 
[2] Lanzillotto, C.A.N., and Pickering, F.B., “Structure-property Relationships in Dual-phase Steels”, Met. Sci., Vol. 16, pp. 371-382, (1982).
 
[3] Baek, J.H., Kim, Y.P., Kim, W.S., and Kho, Y.T., “Effect of Temperature on the Charpy Impact and CTOD Values of Type 304 Stainless Steel Pipeline for LNG Transmission”, KSME Int. J., Vol. 16, 351-357, (2002).
 
[4] Hedayati, A., Najafizadeh, A., Kermanpur, A., and Forouzan, F., “The Effect of Cold Rolling Regime on Microstructure and Mechanical Properties of AISI 304L Stainless Steel”, J. Mater. Process. Tech., Vol. 210, pp. 1017-1022, (2010).
 
[5] Chen, T.C., Chen, S.T., and Tsay, L.W., “The Role of Induced α-martensite on the Hydrogen-assisted Fatigue Crack Growth of Austenitic Stainless Steels”, Int. J. Hydrog. Energy, Vol. 39, pp. 10293-10302, (2014).
 
[6] Dehsorkhi, R.N., Sabooni, S., Karimzadeh, F., Rezaeian, A., and Enayati, M.H., “The Effect of Grain Size and Martensitic Transformation on the Wear Behavior of AISI 304L Stainless Steel”, Mater. Des., In Press, (2014).
 
[7] Switzner, N.T., Van Tyne, C.J., and Mataya, M.C., “Effect of Forging Strain Rate and Deformation Temperature on the Mechanical Properties of Warm-worked 304L Stainless Steel”, J. Mater. Process. Tech., Vol. 210, pp. 998-1007, (2010).
 
[8] Weber, S., Martin, M., and Theisen, W., “Impact of Heat Treatment on the Mechanical Properties of AISI 304L Austenitic Stainless Steel in High-pressure Hydrogen Gas”, J. Mater. Sci., Vol. 47, pp. 6095-6107, (2012).
 
[9] Bai, T., Chen, P., and Guan, K., “Evaluation of Stress Corrosion Cracking Susceptibility of Stainless Steel 304L with Surface Nano Crystallization by Small punch Test”, Mater. Sci. Eng. A Struct., Vol. 561, pp. 498–506, (2013).
 
[10] Bai, T., and Guan, K., “Evaluation of Stress Corrosion Cracking Susceptibility of Nano Crystallized Stainless Steel 304L Welded Joint by Small Punch Test”, Mater. Des, Vol. 52, pp. 849-860, (2013).
 
[11] Roffey, P., and Davies, E.H., “The Generation of Corrosion under Insulation and Stress Corrosion Cracking Due to Sulphide Stress Cracking in an Austenitic Stainless Steel Hydrocarbon Gas Pipeline”, Eng. Fail. Anal., Vol. 44, pp. 148-157, (2014).
 
[12] Li, W.J., Young, M.C., Lai, C.L., Kai, W., and Tsay, L.W., “The Effects of Rolling and Sensitization Treatments on the Stress Corrosion Cracking of 304L Stainless Steel in Salt-spray Environment”, Corros. Sci., Vol. 68, pp. 25-33, (2013).
 
[13] Roland, T., Retraint, D., Lu, Ke., and Lu, J., “Enhanced Mechanical Behavior of a Nano Crystallised Stainless Steel and its Thermal Stability”, Material Science and Engineering: A., Vol. 445, pp. 281-288, (2007).
 
 [14] Williamson, G., and Hall, W., “X-ray Line Broadening from Filed Aluminum and Wolfram”, Actametallurgrica, Vol. 1, Issue. 1, pp. 22-31, (1953).
 
[15] Lu, J.Z., Lou, K.Y., Zhang, Y.K., Cui, C.Y., Sun, G.F., Zhou, J.Z., Zhang, L., You, J., Chen, K.M., and Zhong, J.W., “Grain Refinement of LY2 Aluminum Alloy Induced by Ultra-high Plastic Strain during Multiple Laser Shock Processing Impacts”, Actamaterialia, Vol. 58, No. 11, pp. 3984-3994, (2010).
 
[16] Garcia–Bernal, M. A., Mishra, R. S., Verma, R., and Hernandez-Silva, D., “High Strain Rate Superplasticity in Continuous Cast Al-Mg Alloys Prepared via Friction Stir Processing”, Scripta. Materialia, Vol. 60, No. 10, pp. 850-853, (2009).
 
[17] Arpan, D., and Soumitra, T., “Geometry of Dimples and its Correlation with Mechanical Properties in Austenitic Stainless Steel”, Scripta Materials, Vol. 59, No. 9, pp. 1014-1017, (2008).
Iranian Journal of Mechanical Engineering Transactions of the ISME
Volume 20, Issue 2 - Serial Number 33
September 2019
Pages 74-86

Files

Share

How to cite

Statistics