Steel Sheets Mechanical Properties Improvement

2007 ◽  
Vol 539-543 ◽  
pp. 4381-4385
Author(s):  
A. Traino ◽  
A. Baschenko ◽  
A. Zavrazhnov ◽  
Vadim Ivoditov
Keyword(s):  
Mechanical Properties ◽  
Rolled Stock ◽  
Technological Processes ◽  
Steel Sheets ◽  
Rolling Deformation

Innovative technological processes for a new integrated deformation-thermal production of flat rolled stock imparting enhanced physical-mechanical properties while minimized alloy additions has been developed on the basis of recently discovered metallophysical laws of influence, through hot plastic rolling deformation, upon microstructure-phase conversions and states of steel in metallurgical products.

Recrystallization Deformation of Austenite, Microstructure of Martensite and Property of Rolled Steel Products

2007 ◽  
Vol 558-559 ◽  
pp. 363-367
Author(s):  
A. Traino ◽  
A. Baschenko ◽  
Vadim Ivoditov ◽  
A. Zavrazhnov ◽  
V. Knokhin
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Rolled Stock ◽  
Rolled Steel ◽  
Hot Plastic Deformation ◽  
Technological Processes ◽  
Alloying System ◽  
Deformation By Rolling

Novel technological processes for conceptually new integrated deformation-thermal production of flat rolled stock with enhanced physical-mechanical properties and minimized alloying system have been devised on the basis of recently discovered metallophysical laws of influence, through hot plastic deformation by rolling, upon microstructure-phase conversions and states of steel in metallurgical products.

Experimental Assessment of High Temperature Formability of Boron Steel Sheet Manufactured With a Spring Compound Bending Die

2012 ◽  
Vol 134 (2) ◽  
Author(s):  
Yang Li ◽  
Yong-Phil Jeon ◽  
Chung-Gil Kang
Keyword(s):  
Mechanical Properties ◽  
Heating Temperature ◽  
Boron Steel ◽  
Hot Press ◽  
Forming Process ◽  
Steel Sheets ◽  
Press Forming ◽  
Bending Process ◽  
Tension Testing ◽  
Hot Press Forming

Bending behavior occurs in the hot press forming process, resulting in many cases of failure during forming. To address the problem of cracking and improve the formability and mechanical properties of boron steel sheets in the bending process, an experiment has been carried out by using a spring compound bending die. Also, a comparison has been made between the traditional U-bending die and the spring compound bending die with regard to formability. The influence of the parameters for hot press forming such as the heating temperature, punch speed, and die radii on the mechanical properties and microstructure was analyzed by tension testing and metallographic observations.

scholarly journals Effects of temperature on interfacial evolution and mechanical properties of pure titanium and carbon steel sheets bonded via new multi-pass continuous hot-roll diffusion with nickel interlayer

2021 ◽  
Author(s):  
Chun-Ming Jimmy Lin ◽  
Mohsen Saboktakin Rizi ◽  
Chia-Kai Chen
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Pure Titanium ◽  
Engineering Application ◽  
Peel Strength ◽  
Processing Temperature ◽  
Diffusion Treatment ◽  
Steel Sheets ◽  
New Type ◽  
Interfacial Evolution

Abstract This study performed experiments and thermodynamic calculations to elucidate the effects of diffusion temperature on interfacial evolution and mechanical properties of pure titanium and carbon steel (i.e., steel) sheets bonded via a new type of multi-pass continuous hot-roll diffusion with nickel interlayer. The interfacial evolution results revealed that this new type of multi-pass continuous hot-roll diffusion treatment showed a very good adherence due to its metallurgy bonding, because it made a remarked improve to between compound and intermetallic compounds relationship. Secondly, in mechanical properties results revealed that the highest shear strength (∼470 MPa) was obtained at a processing temperature of 850°C. The highest peel strength (∼21 N/mm) was obtained in the sample processed at 900°C. Bonding temperatures above and below these levels reduced the bond strength respectively due to poor atom diffusion and excessive compound formation, resulting in joint failure at the Ti-Ni interface. Extensive cleavage planes with various alignments were observed on the fracture surfaces in these cases. Overall, a hot-rolling temperature of 850°C was found to provide the optimal tradeoff between interfacial bonding strength and ductility. This work provided an economical and convenient solution for broadening the engineering application of interface between sheets of pure titanium and steel.

Effects of Atomizing Gas on Microstructural Characteristics and Mechanical Properties of Spray Formed High Si Steels

2009 ◽  
Vol 620-622 ◽  
pp. 57-60
Author(s):  
Je Sik Shin ◽  
Bong Hwan Kim ◽  
J.G. Lee ◽  
Seung Y. Shin ◽  
Gwang Bo Choi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Spray Forming ◽  
Forming Process ◽  
Microstructural Characteristics ◽  
Steel Sheets ◽  
Conventional Ingot ◽  
Cold Workability ◽  
Ingot Cast

In order to investigate the feasibility of spray forming process for production of high Si steel sheets, 4.8~6.4%Si steels were prepared by spray forming process using N2 and Ar gases and their cold workability was compared with that of conventional ingot cast samples. Atomizing gas affected significant effect on deposit features, microstructural characteristics and mechanical properties of the spray formed high Si steels.

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