scholarly journals Fatigue damage, impact toughness and micromechanisms of fracture of spring steel after operation at low climatic temperatures

2020 ◽  
Vol 30 ◽  
pp. 193-200
Author(s):  
S.P. Yakovleva ◽  
I.I. Buslaeva ◽  
S.N. Makharova ◽  
A.I. Levin
Keyword(s):  
Impact Toughness ◽  
Fatigue Damage ◽  
Spring Steel ◽  
Micromechanisms Of Fracture ◽  
Damage Impact

scholarly journals Evaluation of Fatigue Damage in Spring Steel SUP10 by Positron Annihilation Spectroscopy

2019 ◽  
Vol 2019 (64) ◽  
pp. 89-94
Author(s):  
Toshifumi KAKIUCHI ◽  
Kanehisa HATTORI ◽  
Naoya UESUGI ◽  
Hiroyuki NISHIKOHRI ◽  
Yoshihiko UEMATSU
Keyword(s):  
Positron Annihilation ◽  
Fatigue Damage ◽  
Positron Annihilation Spectroscopy ◽  
Spring Steel

scholarly journals Characterising the Fatigue Damage in a Martensitic Spring Steel

2021 ◽  
Author(s):  
Anna Wildeis ◽  
Hans-Jürgen Christ ◽  
Robert Brandt ◽  
Matthias Thimm ◽  
Claus-Peter Fritzen
Keyword(s):  
Fatigue Damage ◽  
Spring Steel

Reasons for the formation of crack-like defects in 09Г2С heavy plate steel for tank steel structures

2020 ◽  
Vol 10 (5) ◽  
pp. 479-489
Author(s):  
Vitaly М. Goritsky ◽  
◽  
Georgy R. Shneyderov ◽  
Eugeny P. Studenov ◽  
Olga A. Zadubrovskaya ◽  
...  
Keyword(s):  
Impact Toughness ◽  
Defect Formation ◽  
Steel Structures ◽  
Controlled Rolling ◽  
Plate Steel ◽  
Heavy Plate ◽  
Oil Storage ◽  
Magnetic Inspection ◽  
Metal Microstructure

Determination of causes of crack-like defects in the heavy plate steel 09Г2С is a crucial task, the solution of which is aimed at improving the mechanical safety of oil storage steel vertical tanks. In order to determine the causes for the formation of a group of crack-like defects oriented towards rolling, revealed during grinding and magnetic inspection of the tank wall surface near the vertical weld, the analysis of the chemical composition and testing of the mechanical properties of heavy plate steel were carried out, including the determination of the anisotropy of impact toughness in the temperature range from +20 to –75 °С, analysis of metal microstructure in the area of defect formation on transversal sections and rolled surface. Impact bending tests of 09Г2С heavy plate steel after controlled rolling in longitudinal and transverse directions showed no anisotropy of impact toughness, as well as high purity of steel as for sulfur and titanium, which at higher content causes impact toughness anisotropy. The revealed features of metal microstructure near the defects made it possible to conclude that the crack-like defects were formed during the rolling of gas bubbles at the stage of preparing semi-finished rolled products for finishing rolling. One of the possible methods to prevent such defects from getting into finished rolled products is the use of automated systems of visual inspection of rolled products in the manufacturing process.

Hybrid polymer composite materials. Part 2. Preparation technology

2020 ◽  
pp. 8-13
Keyword(s):  
Composite Materials ◽  
Impact Toughness ◽  
Polymer Composites ◽  
The Other ◽  
Polymer Materials ◽  
Hybrid Polymer ◽  
Preparation Technology ◽  
Advantages And Disadvantages ◽  
Hybrid Polymer Composite ◽  
The One

The main methods (pressing and winding) of the processing of hybrid polymer composites to obtain items were examined. Advantages and disadvantages of the methods were noted. Good combinations of different-module fibers (carbon, glass, boron, organic) in hybrid polymer materials are described, which allow one to prepare materials with high compression strength on the one hand, and to increase fracture energy of samples and impact toughness on the other hand.

Impact Toughness of Friction Stir Welded Al-Mg Alloy*

2014 ◽  
Vol 56 (10) ◽  
pp. 837-841
Author(s):  
Aleksandar Sedmak ◽  
Abdasalam Mohamed Mahdi Eramah ◽  
Srđan Tadić ◽  
Srđa Perković ◽  
Horia Dascau
Keyword(s):  
Impact Toughness ◽  
Mg Alloy ◽  
Friction Stir
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