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Effect of Fe3P and Cu Addition on Sintering Behavior of 434L Ferritic Stainless Steel in Reducing (H2) Atmosphere

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Abstract

The present work investigates the sintering behavior on ferritic (434L) stainless steel with the addition of phosphorus and copper in reducing atmosphere during solid-state and super-solidus liquid-phase sintering. The powders were compact at 600 MPa by single-acting uniaxial universal machine and sintered at solid-state and super-solidus liquid phase at 1100 °C and 1300 °C in hydrogen atmosphere, respectively. The sintered samples were examined for their micrograph, density, and mechanical properties as hardness, ultimate tensile strength, yield strength, and tensile rupture strength. The addition of phosphorus and copper has resulted in improved density by 3%, hardness by 42%, yield strength by 45%, ultimate tensile strength by 19%, respectively, and corrosion resistance improved by 3.35 times.

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Acknowledgements

I would like to thank all members of powder metallurgy laboratory and with humble gratitude and great respect, I would like to thank my Master of Technology supervisor Prof. (Dr.) A Upadhyaya, Professor, Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India, for his valuable guidance, regular encouragement, immense help and valuable advice which influenced to complete this investigation successfully.

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Correspondence to Akhileshwar Nirala.

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Nirala, A. Effect of Fe3P and Cu Addition on Sintering Behavior of 434L Ferritic Stainless Steel in Reducing (H2) Atmosphere. Metallogr. Microstruct. Anal. (2020). https://doi.org/10.1007/s13632-020-00621-w

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Keywords

  • Stainless steel
  • Ferritic stainless steel
  • Powder metallurgy
  • Yield strength
  • Tensile rupture strength