Research on residual stress inside Fe-Mn-Si shape memory alloy coating by laser cladding processing

Abstract

The stainless Fe-Mn-Si shape memory alloy (SMA) coating was prepared on the surface of AISI 304 stainless steel. The principal residual stress measured by the mechanical hole-drilling method indicates that the Fe-Mn-Si SMA cladding specimen possesses a lower residual stress compared with the 304 stainless steel cladding specimen. The mean stress values of the former and the latter on 10-mm-thick substrate are 4.751 MPa and 7.399 MPa, respectively. What’s more, their deformation values on 2-mm-thick substrate are about 0° and 15°, respectively. Meanwhile, the variation trend and the value of the residual stress simulated by the ANSYS finite element software consist with experimental results. The X-ray diffraction (XRD) pattern shows ε-martensite exists in Fe-Mn-Si SMA coating, which verifies the mechanism of low residual stress. That’s the γ→ε martensite phase transformation, which relaxes the residual stress of the specimen and reduces its deformation in the laser cladding processing.

References

[1] Zhang H., Zou Y., Zou Z.-d, Wu D.-t. Optics & Laser Technology. 2015, 65: 119

[2] Tomaž K., Janez G.. Journal of Mechanical Engineering. 2010, 56: 150

[3] Guo H., Liang C., Hua X.-c, Ma H.-s, Guo W.-f, Jing C.-B., Chu J.-h. Journal of Optoelectronics·Laser. 2015, 26: 393

[4] Dean S. W., Bergant Z., Marko S. J., Luis O. J., Grum J.. Journal of ASTM International. 2001, 8: 2

[5] Chao Z., Wei T., Liao W.-h, Liang H.. Surface and Coatings Technology. 2013, 236: 309

[6] Wang J.-s, Hsieh C.-c, Lai H.-h, Kuo C.-w, Wu P. T.-y, Wu W.. Materials Characterization. 2015, 99: 248

[7] Shalvand M., Hojjat Y., Abdullah A., Asadi H.. Materials & Design. 2013, 33: 713

[8] Panchal V. D.. World Pumps. 2013, 2013: 28

[9] Zhang J., Liu K., Zhao K., Li X., Liu Y., Zhang K.. International Journal of Solids and Structures. 2005, 42: 3784

[10] Zang Y.-n, Ni X.-w. Journal of Optoelectronics ·Laser. 2015, 26: 1835

[11] Wu D.-n, Cui R.-r, Deng C.-y. Journal of Optoelectronics·Laser. 2014, 25: 1516

[12] Sánchez-Beitia S., Crespo De Antonio M., Acuna L.. Construction & Building Materials. 2015, 93: 798

[13] Yang J., Chen J., Yang H.-o, Lin X., Huang W.-d. Rare Metal Materials and Engineering. 2004, 33: 1305

[14] Wang R.-p, Lei Y.-p, Shi Y.-w. Optics & Laser Technology. 2010, 43: 870

[15] Yang Q.-x, Zhang Y.-k, Zhang Y., Fang Y., Liao B., Yao M.. Transactions of Materials and Heat Treatment. 2009, 320: 183

[16] Zhou C.-y, Lin C.-x, Guan H.-f, Sun D.-p. Journal of Dalian Maritime University. 2014, 4: 75

[17] XU Zhu-yao, Shape Memory Materials, Shanghai: Shanghai Jiao Tong University Press. (in Chinese)