TY - JOUR
AU - Ripets'kii, S.
AB - Results are given from high-temperature tests (770, 870, 920, and 960°C) to estimate the short-time and cyclic cracking resistance for cast NK-40 steel tubes from reforming ovens in the initial state and after use for 75,400 h. The crack growth resistance in static loading has been determined from the crack resistance limit, and in cyclic loading from the kinetic diagrams for the fatigue failure in terms of the crack growth ratev against the scale of the nominal stress intensity coefficient ΔK. Metallography shows that there are differences in structure in the various states, and material that has been used has pores and microcracks, whose numbers are largest in the inner wall layers. Cyclic tests with constant ΔK show substantial increase in the crack growth rate in the defective material.
TI - High-temperature cracking resistance in cast steel in reforming oven tubes
JF - Materials Science
DO - 10.1007/BF00727242
DA - 2004-11-18
UR - https://www.deepdyve.com/lp/springer-journals/high-temperature-cracking-resistance-in-cast-steel-in-reforming-oven-aGD0l6F2Hn
SP - 183
EP - 188
VL - 26
IS - 2
DP - DeepDyve
ER -