The Influence of the Temperature Regime on the Mechanical Properties of the Thick Steel Sheets from Carbon and Low alloy Steels, Laminated to Thicknesses More than 40 mm

Abstract

Apparently, defects caused by failures in mechanical characteristics do not have a significant weight, but at a closer analysis it is noted that there are many lamination programs in which the thermal heat treatment is needed. These defects are generally not a reason for rejecting the plates, but annealing leads to increased specific consumption.

Tribological Evolution of the Superficial Layer and the Effects of the Magnetic Field to a Non- conventional Treated Steel, During Wear Tests

“…Figure 1a presents the diffractometric aspects in the case of classic treatment (T1). Figures 1b and 1c presents the diffractometric aspects in the case of nonconventional treatments (T2 and T3), before the wear tests [22,23]. In figure 1d, the Feα (M) quantity increased, after three hours of wear tests, compared with the initial state presented in figure 1b.…”

Plasticity Behavior of the Steel Depending on the Cooling Regimes in the Case of a Non-Conventional Treatments

“…The samples were heating at the different temperatures: T1 = 850ºC (for the first batch of samples), T2 = 900 o C (for the second batch of samples), T3 = 950 o C (for the third batch of samples) and T4 = 1000 o C (for the last batch of samples). Three cooling regimes [1,3] Traction tests at the room temperature were carried out according to ASTM: E8M-11 standard [1,3,17], while those related to elevated temperatures were carried out according to ASTM: E21-09 [1,3,5,10,14,16]. Charpy impact tests for resilience determination were carried out according to ASTM: E23-07ae1 standard [11].The preparation of metallographic specimens was conducted according to ASTM E3-11 standard [1,3,6,8,[12][13][14][15]18].…”

“…Three cooling regimes [1,3] Traction tests at the room temperature were carried out according to ASTM: E8M-11 standard [1,3,17], while those related to elevated temperatures were carried out according to ASTM: E21-09 [1,3,5,10,14,16]. Charpy impact tests for resilience determination were carried out according to ASTM: E23-07ae1 standard [11].The preparation of metallographic specimens was conducted according to ASTM E3-11 standard [1,3,6,8,[12][13][14][15]18]. All of mentioned standards can be found in Annual Book of ASTM Standards (2012) [1].…”