ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Heating at 550–950°C induces precipitation of carbides and χ phase in steel 000Kh16N15M3 and carbides and σ and χ phases in steel 0Kh17N16M3T. With an increase of the quenching temperature the region in which carbides and intermetallic phases are precipitated corresponds to a longer holding time for steel 000Kh16N15M3. 2. Susceptibility to ICC of steel 000Kh16N15M3 in tests by the AM method was observed only after prolonged heating (at least 10 h), inducing precipitation of a continuous network of carbides and χ phase in austenite grain boundaries, but in 4 h of heating steel 0Kh17N16M3T. Susceptibility to ICC in 65% HNO3 occurs after brief heating of both steels at 700–850°. 3. The susceptibility of steel 0Kh17N16M3T and weldments of this steel to ICC is considerably higher than that of steel 000Kh16N15M3. No susceptibility to ICC or knifeline corrosion was observed in weldments of steel 000Kh16N15M3 in nitric acid or in synthesis columns and mixtures in the production of carbamide.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00660320
