In the early 1960s the USSR turned to the development of ''large chemi
stry.'' Intensification of existing technological processes and develo
pment of new ones with higher temperatures and pressures and more aggr
essive media required the creation of corrosion-resistant and reliable
alloys based on nickel to be used in chemical equipment. At that time
the principles of alloying alloys for such composite operating condit
ions and production technologies had not been formed. This determined
the development of scientifically substantiated alloying principles an
d the creation, on their basis, of corrosion-resistant deformable weld
able nickel alloys of different alloying systems (Ni - Mo, Ni - Cr - M
o) with the requisite set of operating and technological properties. R
esearch in this direction led by the author at the Bardin Central Rese
arch Institute of Ferrous Metallurgy (TsNIIChERMET) solved the problem
.