Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Materials science forum
Vol. 539-543 (Mar. 2007), p. 4031-4035
ISSN:
1662-9752
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Joining technology of CP-Titanium and Titanium alloy is very important for manufacturingfield. In that case of titanium brazing, chemical compositions of brazing filler metal and brazingatmosphere are very important. In this study, CP-Ti/CP-Ti and Ti alloy/Stainless Steel were brazedwith Ti-based laminated brazing filler metal by using continuous type furnace under Ar gasatmosphere containing extremely low oxygen.Laminated filler was fabricated by roll bonding technology. Chemical compositions oflaminated filler metal used in this study were Ti-15Cu-15Ni and Ti-20Zr-20Cu-20Ni. Brazingtemperature employed in this study was 850, 900, 950, and 1000 C. These brazing temperatures werebased on thermal analysis results and alpha-beta transformation temperature of the base metal used inthis study. Firstly melting properties of laminated brazing filler metal was investigated with DTA andDSC. Secondary joint characteristics were estimated by micro-structural observation at the joint andmechanical properties measurement.Sound joint was obtained in this study according to outside appearance of the specimen.Ti-20Zr-20Cu-20Ni filler had low melting point as compared with Ti-15Cu-15Ni according tothermal analysis results and fillet form-ability. Ni and Cu were diffused from molten brazing filler tobase metal during brazing and Ti-Cu-Ni eutectoid reaction was took placed at the based metal duringcooling after brazing
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.4031.pdf
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