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http://dx.doi.org/10.3740/MRSK.2003.13.1.064

The Effect of Heat Treatment on the Tensile Properties of TiNi/6061Al Composites  

Park, Sung-Ki (Center for Advanced Net Shape Manufacturing and Clean Process)
Shin, Soon-Gi (Center for Advanced Net Shape Manufacturing and Clean Process)
Lee, Jun-Hee (Center for Advanced Net Shape Manufacturing and Clean Process)
Publication Information
Korean Journal of Materials Research / v.13, no.1, 2003 , pp. 64-68 More about this Journal
Abstract
The 1.6 vol% and 2.5 vol% TiNi/6061Al composites were fabricated by permanent mold casting for investigating the effect of heat treatment on tensile strength for composites. The tensile strength without T6 treatment at 293 K was increased with increasing the volume fraction of TiNi fiber and at 363 K the higher the pre-strain, the higher the tensile strength. The tensile strength of the composite with $T_{6}$ treatment at 293 K was found to increase with increasing both the amount of pre-strain and the volume fraction of TiNi fiber and was higher than that without $T_{6}$ treatment. It should be noted that the tensile strength 2.5vol%TiNi/6061Al composites rolled at a 38% reduction ratio was the maximum value of 298 MPa. The tensile strength of composites decreased with increasing the reduction ratio over 38% because of the rupture of TiNi fiber.
Keywords
Permanent mold casting; TiNi/6061Al composites; Heat treatment; Tensile strength; Reduction ratio;
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