Fracture Behavior of Refractory Chromium-Base Alloy Kh65NVFT

Study of wear rate of cutting tools made from Cr-based high-temperature alloy during operation depending on the material properties of the cutting tool and the rate of cutting

“…According to the results of X ray phase analysis, these phases include the α phase, which is based on chrome with a BCC lat tice, and the γ phase, which is based on nickel with FCC lattice, where the as supplied ration is close to 1 : 1 [5]. The phases differ markedly in their proper ties, e.g., the hardness of the α phase is 578 HV, while that of the γ phase is 434 HV.…”

Strain Hardening Curves and Mechanical Properties of a Chromium-Base Refractory Alloy as a Function of Heat Treatment and Test Temperature

“…The structure in the quenched condition is represented by a single-phase a-solid solution (bcc lattice [4]). By the data of XRDPA and metallographic analysis quenching from 1250°C (Fig.…”

“…The effect of tempering on the properties of the alloy has not been studied. At the same time, the results of [4,5] allow us to expect high properties in a chromium-base alloy after quenching and tempering. Investigation of the effect of heat treatment on the structure and properties of refractory alloys seems to be quite timely.…”

“…Recent work [4] is devoted to the fracture behavior of the alloy, and the transformations under its heat treatment are considered in [5]. However, the structure and properties and the fracture behavior studied in [4] concern the alloy in the state as delivered, while the effect of the heat treatment on them is not investigated.…”

“…However, the structure and properties and the fracture behavior studied in [4] concern the alloy in the state as delivered, while the effect of the heat treatment on them is not investigated. In [5] we have detected anomalously high solid-solution hardening of a chromium-base alloy (the quenching-induced growth in the hardness was about 20 HRC ), but these data concern only the quenched condition.…”