[KSCI] Korea Science Citation Index Service

Variations of Micro-Structures and Mechanical Properties of Ti/STS321L Joint Using Brazing Method

Publication Information

Journal of Welding and Joining / v.20, no.6, 2002 , pp. 106-106 More about this Journal

Abstract

This study investigated variations of micro-structures and mechanical properties of Ti / STS321L joint with various bonding temperature and time using brazing method. According to increasing bonding temperature and time, it was observed that the thickness of their reaction layer increased due So increasing diffusion rate and time. From the EPMA results, Ti diffused to the STS321L substrate according to increasing bending time to 30min. Hardness of bonded interface increased with increasing bonding temperature and time due to increasing their oxides and intermetallic compounds. XRD data indicated that Ag, Ag-Ti intermetallic compounds, TiAg and Ti₃Ag and titanium oxide, TiO₂were formed in interface. In tensile test, it was found that the tensile strength had a maximum value at the bonding temperature of 900℃ and time of 5min, and tensile strength decreased over bonding time of 5min. The critical thickness of intermetallic compounds was observed to about 30㎛, because of brittleness from their excessive intermetallic compounds and titanium oxide, and weakness from void.

Keywords

Brazing, Titanium, Stainless steel(321L), BAg-19, Ti-Ag intermetallic compund, Titanium oxide;

Citations & Related Records

Reference

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KSCI

Variations of Micro-Structures and Mechanical Properties of Ti/STS321L Joint Using Brazing Method 브레이징을 이용한 Ti/STS321L 접합체의 미세조직과 기계적 특성의 변화

Variations of Micro-Structures and Mechanical Properties of Ti/STS321L Joint Using Brazing Method