The production of hot-rolled plate steel with reduced tolerances

Metallurgist ◽  
1974 ◽  
Vol 18 (11) ◽  
pp. 853-854
Author(s):  
Yu. V. Konovalov ◽  
L. B. Gorskii ◽  
A. E. Rudnev ◽  
V. P. Samoilov ◽  
G. I. Manshilin ◽  
...  
Keyword(s):  
Rolled Plate ◽  
Plate Steel ◽  
Hot Rolled

scholarly journals Hot Rolled Plate Steel Local Thick 10 mm with Quench and Temper Process

2019 ◽  
Vol 14 (14) ◽  
pp. 4723-4727
Author(s):  
Achmad Taufika ◽  
Pratiktoa . ◽  
Agus Supraptoa ◽  
Ahmad As`ad Soniefa
Keyword(s):  
Rolled Plate ◽  
Plate Steel ◽  
Hot Rolled

scholarly journals Quenching and tempering parameter on Indonesian hot rolled plate steel for armour steel

2018 ◽  
Vol 204 ◽  
pp. 05001 ◽  
Author(s):  
Yurianto ◽  
Pratikto ◽  
Rudy Sonoko ◽  
Wahyono ◽  
A.P. Bayuseno
Keyword(s):  
Heat Treatment ◽  
Impact Energy ◽  
High Strength ◽  
Rolled Plate ◽  
Plate Steel ◽  
Direct Pressure ◽  
Hot Rolled ◽  
Temper Heat Treatment ◽  
Armour Steel ◽  
Quenching And Tempering

Armour steel is a high strength and hardness steel used to protect damage by an object, individual or vehicle from the direct pressure of projectile. This steel used for military and commercials equipment in Indonesia and produced out of hot rolled plate steel made by PT. Krakatau Steel (Persero) Cilegon, Banten, Indonesia. By using quench (with water sprayed) and temper heat treatment produced Quenched & Tempered Steels. The aim of the study to obtain optimum quenching and tempering parameter in hardness and impact energy of HRP Steel. Method of this study by optimizing austenite temperature; austenite holding time; temper temperatures; hardness and impact energy. The result of this study is austenite temperatures 900°C (held 45 minutes) and temper temperatures 125°C (held 45 minutes). Prediction of both hardness and impact energy is 569.96 HVN (536.00 BHN) and 30.50 J respectively.

Comprehensive assessment of weldability of hot-rolled plate steel of the E36 grade

2017 ◽  
Vol 0 (3) ◽  
Author(s):  
Oleksandr M. Kostin ◽  
Volodymyr O. Martynenko ◽  
Andrii V. Labartkava
Keyword(s):  
Comprehensive Assessment ◽  
Rolled Plate ◽  
Plate Steel ◽  
Hot Rolled

scholarly journals The effect of heat treatment quench-temper and radius bending against hardness hot rolled plate steel

2018 ◽  
Vol 420 ◽  
pp. 012045
Author(s):  
Achmad Taufik ◽  
Pratikto ◽  
Agus Suprapto ◽  
Achmad As’ad Sonief
Keyword(s):  
Heat Treatment ◽  
Rolled Plate ◽  
Plate Steel ◽  
Hot Rolled

Improving the mechanical properties of hot-rolled plate steel 10KhSND

Metallurgist ◽  
1988 ◽  
Vol 32 (1) ◽  
pp. 41-42
Author(s):  
N. M. Khoroshilov ◽  
S. A. Pikulin ◽  
V. G. Abakumov ◽  
V. V. Ved' ◽  
B. A. Dvoryadkin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Rolled Plate ◽  
Plate Steel ◽  
Steel 10Khsnd ◽  
Hot Rolled

scholarly journals Analysis of the influence of hot rolled plate steel treatment using temper and quench-temper method on vickers hardness number enhancement

2021 ◽  
Vol 4 (12(112)) ◽  
pp. 18-24
Author(s):  
Achmad Taufik ◽  
Pratikto Pratikto ◽  
Agus Suprapto ◽  
Achmad As’ad Sonief
Keyword(s):  
Hardness Test ◽  
Residual Austenite ◽  
Holding Time ◽  
Rolled Plate ◽  
Plate Steel ◽  
Steel Material ◽  
Bending Radius ◽  
Grain Distribution ◽  
Cooling Media ◽  
Hot Rolled

This paper wants to know the effect of bending radius on the distribution of hardness, grain distribution and microstructure on the surface area of tensile stress and compressive stress after bending, quenching and tempering. Material testing helps determine and analyze material quality. The research was conducted on the bending of Hot Rolled Plate Steel material with a radius of 50 mm, 55 mm, 60 mm, 65 mm and 70 mm with a measurement distance of 1 mm, 2 mm and 3 mm, the highest value was obtained at a radius of 55 mm with a measurement distance of 1 mm. After getting the quench-temper treatment with a holding time of 30 minutes, the value of 498 HV was obtained at a radius of 70 mm with a measurement distance of 2 mm. Hardness test was performed using the austenite temperature of 900 °С, microstructure test results obtained finer grains in the compression area r=2.173 µm and in the tensile area r=2.34 µm. This observation aims to determine the microstructure of the material undergoing a heat treatment process at a temperature of 900 °С with a holding time of 30 minutes using water cooling media. The results of the observation of the microstructure of the test specimens before the quench-temper process showed that the structure of ferrite was more abundant than perlite, but after the quench-tempering process the results showed that there was more perlite than ferrite due to the presence of austenite. The treatment on the transformation of the Ar3 line causes the hardness to change the shape of the martensite microstructure into steel while the thickness of the carburizing layer increases with the increase in the carbonization temperature on the surface of the quenched specimen, resulting in the formation of martensite and residual austenite causing the coating to become hard.

Microstructural Change of Beta Type Titanium Alloy by Intense Plastic Deformation

2006 ◽  
Vol 503-504 ◽  
pp. 705-710 ◽  
Author(s):  
Goroh Itoh ◽  
Hisashi Hasegawa ◽  
Tsing Zhou ◽  
Yoshinobu Motohashi ◽  
Mitsuo Niinomi
Keyword(s):  
Plastic Deformation ◽  
Work Hardening ◽  
Static Recrystallization ◽  
True Strain ◽  
Microstructural Change ◽  
Intense Plastic Deformation ◽  
Rolled Plate ◽  
Al Alloy ◽  
Hot Rolled ◽  
Zr Alloy

Usual static recrystallization treatment and a method to provide intense plastic deformation, ARB namely Accumulative Roll-Bonding, have been applied to two beta type titanium alloys, i.e. Ti-29Nb-13Ta-4.6Zr and Ti-15V-3Cr-3Sn-3Al. Microstructural change as well as work-hardening behavior was examined as a function of plastic strain. Both the work-hardening rate and the hardness at the initial as-hot-rolled state were smaller in the Ti-Nb-Ta-Zr alloy than in the Ti-V-Cr-Sn-Al alloy. Recrystallized grains of 14μm in size were obtained by the usual static recrystallization treatment, which was significantly smaller than that of the starting as-hot-rolled plate of 38μm. No significant change other than flattening and elongating of the original grains was found in the optical microscopic scale. It was revealed, however, from a TEM observation combined with selected area diffraction technique that geometric dynamic recrystallization occurred in the Ti-Nb-Ta-Zr alloy deformed at room temperature by a true strain of 5, resulting in an ultra-fine-grained microstructure where the grain size was roughly estimated to be about 100nm.

Correlation among Microstructure, Texture, and Properties along the Thickness Direction in As-Hot-Rolled and As-Solution-Quenched Al7055 Thick Plates

2021 ◽  
Vol 1026 ◽  
pp. 65-73
Author(s):  
Kai Zhu ◽  
Hong Wei Yan
Keyword(s):  
Mechanical Properties ◽  
Yield Strength ◽  
Tensile Tests ◽  
Rolled Plate ◽  
Uniaxial Tensile ◽  
Thickness Direction ◽  
Electron Backscattered Diffraction ◽  
Thick Plates ◽  
Aluminum Plates ◽  
Hot Rolled

Both microstructure inhomogeneity and mechanical property diversity along the thickness direction in rolled thick aluminum plates have been considered to have a remarkable impact on the performance and properties of the products made from the plates. In this study, scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD) characterizations of microstructure and texture types along the thickness directions of Al7055 thick plate specimens prepared using two conditions, hot-rolling and solution-quenching, were performed. To examine the mechanical properties, uniaxial tensile tests were also carried out on specimens machined from both types of thick plates, using a layered strategy along the thickness direction. The results indicate that both the microstructure and mechanical properties are inhomogeneous under the two conditions. Furthermore, it is evident that there is a hereditary relationship between the mechanical properties of the two plates—areas with higher yield strength in the as-hot-rolled plate correspond to areas with the higher yield strength in the as-solution-quenched plate

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