Effect of Ti Contents on Age-Hardening of Ni-Cu Alloys

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  • Ni-Cu合金の時効硬化におよぼすTiの影響
  • Ni-Cu ゴウキン ノ ジコウ コウカ ニ オヨボス Ti ノ エイキョウ

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Abstract

Effect of Ti contents on the age hardening of 70Ni-30Cu alloys has been investigated by hardness, microscopic and corrosion tests. The following results have been obtained. (1) The maximum hardness has been obtained by aging at 640°C for 4∼8 hrs. (2) The alloy containing about 4%Ti has been found to be the most age-hardenable. (3) The lower the Ti contents and the more the aging behaviour becomes apparent, the more the corrosion resistance against boiling in 20 wt%H2SO4 is strengthesed.

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