Engineers are looking for higher quality metal alloys to solve design problems. Two examples of current substitution trends: Titanium is replacing copper-nickel alloys in large desalinization plants. In a separate development, metallurgical-bonded, nickel-based alloy clad pipe is replacing conventional corrosion-resistant alloy pipe in sour gas applications. The trends were reported by L. Patrick Hassey, CEO of Allegheny Technologies, in a recent conference call with analysts. Hassey retired on May 1.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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