Multilayer high-alloy steel of the ferritic class

1998 ◽  
Vol 40 (6) ◽  
pp. 250-253
Author(s):  
V. M. Kondratenko ◽  
A. K. Tikhonov ◽  
I. N. Blagova ◽  
S. S. Kazakov ◽  
E. A. Pargamonov ◽  
...  
Keyword(s):  
Alloy Steel ◽  
High Alloy ◽  
High Alloy Steel

scholarly journals Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 471
Author(s):  
Josef Odehnal ◽  
Pavel Ludvík ◽  
Tomáš Studecký ◽  
Pavel Michálek
Keyword(s):  
Alloy Steel ◽  
Base Alloy ◽  
Cast Steel ◽  
Solidification Process ◽  
High Alloy ◽  
High Alloy Steel ◽  
Iron Base Alloy ◽  
Steel Grades ◽  
Borated Stainless Steel ◽  
Filling And Solidification

The presented work is aimed at developing a mould geometry suitable for casting both low- and high-alloy steel grades into 500 kg experimental ingots. The high Height-to-Diameter (H/D)-ratio mould currently used in COMTES FHT Inc. served as a reference and for finite element method simulations (FEM) of the filling and solidification process. The optimized mould geometry, balancing the porosity and segregations, was determined using MAGMA software. Four different steel grades were defined for the simulation. Case studies were carried out for 34CrNiMo6 (W.Nr. 1.6582), DHQ8, CB2 and borated stainless steel grades ranging from low-alloy steel to high-alloy steel. Extended user-defined criteria and verified boundary conditions were used to predict the formation of A-segregations in cast steel. Both primary (PDAS) and secondary (SDAS) arm spacings were modelled as well. The optimized mould shape and the casting assembly were designed based on the simulation results.

Study Regarding Process of the Electrical Discharge Machining with Magnetic Activation of the Welded Joints of some Materials High Alloy Steel

2021 ◽  
Vol 890 ◽  
pp. 141-146
Author(s):  
Mihail Aurel Țîțu ◽  
Dumitru Mnerie ◽  
Diana Cristina Dragomir ◽  
Gabriela Victoria Mnerie
Keyword(s):  
Alloy Steel ◽  
Welded Joints ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Scientific Paper ◽  
Electric Discharges ◽  
Technological Parameters ◽  
High Alloy ◽  
High Alloy Steel ◽  
Magnetic Activation

The scientific paper presents an extensive research on modeling and optimizing the technological parameters of the process for processing by processing electric discharges with massive electrode with and without magnetic activation. Scientific research is based on real data collected from the process of electrical discharges performed on various samples extracted from areas of welded joints of metal components made of high alloy steel. The processing of experimental data was performed both classically and actively, especially the method of the central factorial experiment composed of orthogonal and rotary. The process parameters that were initially modeled and subsequently optimized were based on a series of independent variables characteristic of dimensional processing by copying the shape of the electrical discharge processing. Subsequent research conclusions and directions, as well as original contributions, are an experimentally validated point of view and worthy of consideration. All these fundamental ideas highlighted above find their explanations and the corresponding explicit treatment in the content of this scientific paper that addresses both managers at all levels and researchers.

The effect of preexisting VC carbides on the bainite transformation in medium-carbon high-alloy steel

2019 ◽  
Vol 34 (15) ◽  
pp. 2695-2704
Author(s):  
Xiaoli Zhao ◽  
Lizhan Han ◽  
Chuanwei Li ◽  
Jianfeng Gu
Keyword(s):  
Alloy Steel ◽  
Bainite Transformation ◽  
High Alloy ◽  
High Alloy Steel ◽  
Medium Carbon ◽  
Image Position

Abstract

Nitriding of High-Alloy Steel During Plasma Arc Remelting

Metallurgist ◽  
2019 ◽  
Vol 63 (1-2) ◽  
pp. 156-162
Author(s):  
A. S. Tyuftyaev ◽  
M. Kh. Gadzhiev ◽  
M. V. Il’ichev ◽  
M. A. Khromov ◽  
G. A. Filippov
Keyword(s):  
Alloy Steel ◽  
Plasma Arc ◽  
High Alloy ◽  
High Alloy Steel ◽  
Plasma Arc Remelting

scholarly journals Determination of boron in high alloy steel

1958 ◽  
Vol 7 (6) ◽  
pp. 372-376 ◽  
Author(s):  
Shigeo WAKAMATSU
Keyword(s):  
Alloy Steel ◽  
High Alloy ◽  
High Alloy Steel

Improvement of top casting of high-alloy steel into a mold

2011 ◽  
Vol 2011 (6) ◽  
pp. 536-538 ◽  
Author(s):  
V. I. Chumanov ◽  
I. V. Chumanov ◽  
D. A. Pyatygin
Keyword(s):  
Alloy Steel ◽  
High Alloy ◽  
High Alloy Steel
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