aging nickel base alloy containing chromium, molybdenum, niobium, titanium, and having high mechanical properties and high resistance to corrosion in aggressive environments they encounter in the wells for oil and gas extraction, nat

摘要

Manufacturing method of a nickel-based alloy comprising the steps of forging and solution treating a metal mass of the composition described, subjecting the product to a first step of ageing at a higher temperature and a step of cooling in air, to a second step of ageing at a lower temperature and a step of cooling in air to obtain the nickel-based alloy. As a result of steps i)-v)), said alloy comprises metal hardening phases precipitated uniformly throughout its grains. The invention further relates to nickel-based alloys and a use of such alloys.