The influence of short-time heat treatment on the widely used and commercially available ledeburitic cold-work tool steel 1.2379 (X153CrMoV12; AISI D2) is examined herein. Starting from a soft annealed initial condition, different austenitizing temperatures holding times metastable microstructural states after treatment/hardening investigated. experimental implementation in quenching dilatomete...

The influence of austenitizing temperature and austenite grain size on the crystallographic characteristics mechanical properties transformation products was investigated in a low-alloy steel. Annealing at lower after austenitization 1050 °C can reduce vacancy concentration enhance stability austenite, thereby determining martensite-start (Ms) density twin-related V1/V2 variant pairs. pairs are...

The effect of molybdenum (Mo) contents on hardenability and precipitation behaviors in Mo-B simultaneously added steels were investigated placing a focus high austenitizing temperature. 0.5% Mo - 11 ppm B steel austenitized at 1150°C was decreased compared with that 950 °C, whereas 1.0% 10 1.5% 9 less affected by temperature than steel. Fe23(C, B)6 increasing also revealed to be suppressed – Th...

Two nondestructive electromagnetic/magnetic techniques including hysteresis loop and eddy current methodologies have been used to characterize microstructural changes of AISI D2 cold work tool steel as a result of quench and tempering treatments. To measure the fraction retained austenite in quenched microstructure, six specimens were austenitized in the range  of 1000-1130 °C. Samples austenit...

The effects of steel wire patenting process parameters on very fine interlamellar spacing in the pearlitic steel wire were investigated and the optimized condition of the process was achieved. In this work, the initial nanopearlitic structure was obtained in a 0.72 wt% carbon steel wire before the wire drawing process. The results were the minimum interlamellar spacing of 35 nm and maximum ulti...

The presented work was aimed at evaluating influence of boron on hardenability steel quantitatively and this effect during complex use with other alloying additives like chromium, vanadium titanium. For purpose, eight melts variable chemical compositions were prepared. From the ingots, cylindrical specimens normalized dimensions according to EN ISO 642:1999 cut out subjected full annealing 1200...

In this research, the three-body-type abrasive wear behavior of heat-treated multi-alloyed white cast irons, which has been used for work rolls in hot rolling stands, was investigated. Cast irons with varying C content from 1.73 to 2.34 mass% under 5 Cr, Mo, W, V each and 2 Co were prepared. After annealing, specimens hardened 1323 K 1373 austenitizing by fan air cooling. Hardened (As-H) temper...