摘要:
A copper-base alloy for leadframes consisting essentially of 0.8-4.0 weight % of Ni, 0.2-4.0 weight % of Ti and 0.05-0.6 weight % of Mg, the balance being essentially Cu and inevitable impurities, and a ratio of Ni to Ti being 1-4. This copper-base alloy has high mechanical strength of about 50 kgf/mm.sup.2 or more and electric conductivity of 30% IACS or more as well as good solderability and solder durability. Thus, it may be used as a highly reliable material for leadframes of semiconductor devices.
摘要翻译:用于引线框架的铜基合金基本上由Ni的0.8-4.0重量%,Ti的0.2-4.0重量%和Mg的0.05-0.6重量%组成,余量基本上为Cu和不可避免的杂质,Ni与Ti的比例 是1-4。 该铜基合金具有约50kgf / mm 2以上的机械强度和30%IACS以上的导电性以及良好的可焊性和焊料耐久性。 因此,其可以用作半导体器件的引线框架的高可靠性材料。
摘要:
A color picture tube includes a shadow mask of a precipitation strengthening Fe-Ni alloy. The alloy contains Fe-Ni as a major constituent and has at least one additive element. The alloy has a precipitation strengthening phase of Ni.sub.x X.sub.y (wherein X is at least one element selected from the group consisting of Al, Ti, Nb, Ta and Zr; x is 2 to 4; and y is 0.05 to 1.5) and an average thermal expansion coefficient of not more than 6.times.10.sup.-6 /.degree. C. in a temperature range of 20.degree. C. to 100.degree. C.
摘要:
An Ni-Cr-W alloy having improved high temperature fatigue strength and superior creep rupture strength. The alloy contains, by weight, less than 0.1% of C, 21 to 26% of Cr, 16 to 21% of W and more than 50% of Ni. The alloy has a structure in which the austenite has a mean grain size larger than 100 .mu.m and in which the primary solid solution of W of body centered cubic crystal is precipitated preferentially in the austentite grain boundary. Disclosed also is a method of producing this alloy.
摘要:
The present invention provides Ni-Cr-W alloys consisting essentially of, by weight, 0.001 - 0.1% carbon, 0.05 - 0.7% titanium and/or niobium, 18 - 25% chromium and 16 - 22% tungsten, the total content of chromium plus tungsten being from 38 to 44% and the balance being essentially nickel with incidental impurities.
摘要:
Solid-solution strengthened austenitic alloys consisting of, in weight percent, no more than 0.1 % carbon, from 4 (%C) to 1 % titanium and/or niobium (alone or in combination), no more than 75 % cobalt, no more than 26 % chromium, from 8 % to 40 % tungsten, wherein the amount of 1/5 (%Co) + (%Cr) + (%W) is in the range from 38 % to 46 %, with or without at least one element from the group consisting of no more than 0.1 % boron, no more than 0.5 % zirconium, no more than 0.5 % yttrium and no more than 1 % hafnium, and the balance essentially nickel except for impurities.These alloys possess excellent high-temperature strength as well as good workability.