Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired with Fe314

Lianzhong ZHANG, Dichen LI, Shenping YAN, Ruidong XIE, Hongliang QU

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Front. Mech. Eng. ›› 2018, Vol. 13 ›› Issue (4) : 513-519. DOI: 10.1007/s11465-018-0503-0
RESEARCH ARTICLE

Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired with Fe314

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Abstract

The mechanical properties of 316L stainless steel repaired with Fe314 under different temperatures and humidities without inert gas protection were studied. Results indicated favorable compatibility between Fe314 and 316L stainless steel. The average yield strength, tensile strength, and sectional contraction percentage were higher in repaired samples than in 316L stainless steel, whereas the elongation rate was slightly lower. The different conditions of humiture environment on the repair sample exerted minimal influence on tensile and yield strengths. The Fe314 cladding layer was mainly composed of equiaxed grains and mixed with randomly oriented columnar crystal and tiny pores or impurities in the tissue. Results indicated that the hardness value of Fe314 cladding layer under different humiture environments ranged within 419–451.1 HV0.2. The field humiture environment also showed minimal impact on the average hardness of Fe314 cladding layers. Furthermore, 316L stainless steel can be repaired through laser cladding by using Fe314 powder without inert gas protection under different temperatures and humidity environments.

Keywords

laser cladding / repaired performance / tensile strength / temperature and humidity environment

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Lianzhong ZHANG, Dichen LI, Shenping YAN, Ruidong XIE, Hongliang QU. Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired with Fe314. Front. Mech. Eng., 2018, 13(4): 513‒519 https://doi.org/10.1007/s11465-018-0503-0

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Acknowledgement

We would like to thank our teacher, Ling Wang, for providing assistance in using the English language during thesis writing.

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2018 Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature
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