2008•Materials for Mechanical EngineeringRequires access

Microstructure and Properties of 102/T91 Dissimilar Steel Tube Joint by TLP Bonding with Two-step Heating Temperature Process

Zeng Gao

Abstract

102/T91 dissimilar steel tubes were joined by transient liquid-phase(TLP) bonding process of two-step heating temperature using FeNiCrSiB amorphous alloy as filler in argon atmosphere.Microstructure and mechanical properties of the joint was tested at room temperature.The results showed that 102/T91 joint with similar compositions to the parent metal,curved interface and higher tensile strength than the base metal could be gained under following conditions of heating at 1 260 ℃ for 1 min,freezing at 1 230 ℃ for 4 min with the pressure of 6 MPa.

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Key concepts: Materials science, Microstructure, Joint (building), Composite material, Ultimate tensile strength, Base metal, Alloy, Tube (container)