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Structure and Mechanical Properties of the Molybdenum–Steel Bimetal Fabricated by Hot Isostatic Pressing

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Abstract—The structure and the ultimate tensile strength of the bimetallic joints of a TsM2A (Mo–Ti–Zr system) molybdenum alloy and a corrosion-resistant 12Kh18N10T steel are studied. These joints are formed by diffusion welding under hot isostatic pressing conditions using the following combined intermediate layers: vanadium–electrical sheet steel, vanadium–copper, and titanium–niobium–copper. The highest strength of the joint (419 MPa) is reached when a combination intermediate layer of titanium, niobium, and copper is used.

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Correspondence to D. N. Makhina.

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Translated by K. Shakhlevich

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Makhina, D.N., Denisov, V.N., Perminova, Y.S. et al. Structure and Mechanical Properties of the Molybdenum–Steel Bimetal Fabricated by Hot Isostatic Pressing. Russ. Metall. 2019, 1031–1035 (2019) doi:10.1134/S0036029519100173

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  • Keywords: bimetal
  • molybdenum alloy–corrosion-resistant steel welded joint
  • intermediate layers
  • diffusion welding
  • hot isostatic pressing
  • structure
  • strength