scholarly journals Механизмы пластической деформации в нержавеющей стали в условиях высокоскоростного проникания компактных ударников

2019 ◽  
Vol 61 (10) ◽  
pp. 1738
Author(s):  
С.А. Атрошенко ◽  
А.Ю. Григорьев ◽  
Г.Г. Савенков
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
High Speed ◽  
Deformation And Fracture ◽  
Mechanisms Of Plastic Deformation

The article presents the results of a study of the behavior of austenitic stainless steel 08Х18Н10Т under conditions of high-speed penetration with speeds of 1.5-2.0 km/s. It is shown that in penetration through the target three penetration zones are observed, differing in the mechanisms of plastic deformation and fracture.

scholarly journals Кинетика структуры титанового сплава при высокоскоростном проникании ударника

2020 ◽  
Vol 62 (11) ◽  
pp. 1769
Author(s):  
С.А. Атрошенко ◽  
А.Ю. Григорьев ◽  
Г.Г. Савенков
Keyword(s):  
Plastic Deformation ◽  
Titanium Alloy ◽  
High Speed ◽  
Deformation And Fracture ◽  
Mechanisms Of Plastic Deformation

Abstract. The article is devoted to the study of the behavior of a titanium alloy under conditions of high-speed penetration at a speed of approximately 2.0 km / s. It is shown that in the target during penetration, three penetration zones are observed that differ in the mechanisms of plastic deformation and fracture.

Plastic deformation and fracture behaviour of high-nitrogen nickel-free austenitic stainless steel

2017 ◽  
Vol 33 (14) ◽  
pp. 1635-1644 ◽  
Author(s):  
Guixun Sun ◽  
Anwei Yu ◽  
Shicheng Sun ◽  
Changtao Ji ◽  
Zhonghao Jiang ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Fracture Behaviour ◽  
High Nitrogen ◽  
Deformation And Fracture

scholarly journals Твердофазная низкотемпературная эволюция бинарной системы Pb-Au: через контактные взаимодействия к интерметаллидам, через деструктуризацию к новому многоэлементному состоянию

2020 ◽  
Vol 62 (11) ◽  
pp. 1755
Author(s):  
В.И. Рождествина
Keyword(s):  
Plastic Deformation ◽  
Titanium Alloy ◽  
High Speed ◽  
Deformation And Fracture ◽  
Mechanisms Of Plastic Deformation

The article is devoted to the study of the behavior of a titanium alloy under conditions of high-speed penetration at a speed of approximately 2.0 km / s. It is shown that in the target during penetration, three penetration zones are observed that differ in the mechanisms of plastic deformation and fracture.

Magnetic Characterization of SUS316L Deformed by High Pressure Torsion

2011 ◽  
Vol 239-242 ◽  
pp. 1300-1303
Author(s):  
Hong Cai Wang ◽  
Minoru Umemoto ◽  
Innocent Shuro ◽  
Yoshikazu Todaka ◽  
Ho Hung Kuo
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Stainless Steel ◽  
Phase Transformation ◽  
Austenitic Stainless Steel ◽  
Volume Fraction ◽  
High Pressure Torsion ◽  
Austenitic Matrix ◽  
Magnetic Characterization

SUS316L austenitic stainless steel was subjected to severe plastic deformation (SPD) by the method of high pressure torsion (HPT). From a fully austenitic matrix (γ), HPT resulted in phase transformation from g®a¢. The largest volume fraction of 70% a¢ was obtained at 0.2 revolutions per minute (rpm) while was limited to 3% at 5rpm. Pre-straining of g by HPT at 5rpm decreases the volume fraction of a¢ obtained by HPT at 0.2rpm. By HPT at 5rpm, a¢®g reverse transformation was observed for a¢ produced by HPT at 0.2rpm.

Austenitic stainless steel bearing Nb compositional and plastic deformation effects

2008 ◽  
Vol 492 (1-2) ◽  
pp. 161-167 ◽  
Author(s):  
A.I. Zaky Farahat ◽  
T. El-Bitar ◽  
Eman El-Shenawy
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel

In-situ EBSD study of the degradation behavior in a type 316 Austenitic Stainless Steel during plastic deformation

2021 ◽  
pp. 030932472098493
Author(s):  
Xiao Wang ◽  
Yuetao Zhang ◽  
Huaying Li ◽  
Ming-yu Huang
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Tensile Deformation ◽  
Target Surface ◽  
Local Orientation ◽  
Deformation Degree ◽  
Band Contrast

Type 316 steels have been heavily utilized as the structural material in many construction equipment and infrastructures. This paper reports the characterization of degradation in 316 austenitic stainless steel during the plastic deformation. The in-situ EBSD results revealed that, with the increase of plastic strain, the band contrast (BC) value progressively decreased in both grain and grain boundaries, and the target surface becomes uneven after the plastic tensile, which indicates that the increase of surface roughness. Meanwhile, the KAM and ρGND values are low in the origin specimen but increased significantly after the in-situ tensile. The results indicated that the KAM and ρGND are closely related to the deformation degree of the materials, which can be used as the indicator for assessing the degradation of 316 steel. Besides, the re-orientation of grain occurred after the tensile deformation, which can be recognized from the lattice orientation and local orientation maps.

Explosively Driven Expansion and Fragmentation Behavior for Cylinders, Spheres and Rings of 304 Stainless Steel

2010 ◽  
Vol 638-642 ◽  
pp. 1035-1040 ◽  
Author(s):  
Tetsuyuki Hiroe ◽  
Kazuhito Fujiwara ◽  
Hidehiro Hata ◽  
Mitsuru Yamauchi ◽  
Kiyotaka Tsutsumi ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Speed ◽  
Fracture Behavior ◽  
Copper Wire ◽  
304 Stainless Steel ◽  
Fragmentation Model ◽  
Fragmentation Behavior ◽  
Deformation And Fracture ◽  
Test Parameters ◽  
Fine Copper

Explosive loading techniques are applied to expand tubular cylinders, spherical shells and rings of 304 stainless steel to fragmentation, and the effects of wall thicknesses, explosive driver diameters and the constant proportionality of the in-plane biaxial stretching rates are investigated on the deformation and fracture behavior of three basic structures experimentally and numerically. In the cylinder tests, the driver is a column of high explosive PETN, inserted coaxially into the bore of a cylinder and initiated by exploding a fine wire bundle at the column axis using a discharge current from a high-voltage capacitor bank. In case of the ring tests, ring specimens are placed onto a single cylinder filled with the PETN as a expansion driver, and for sphere tests, specimens filled with the PETN are also initiated by exploding a fine copper wire line with small length located at the central point. Two types of experiments are conducted for every specimen and test condition. The first type uses high speed cameras to observe the deformation and crack generation of expanding specimens showing the final maximum in-plane stretching rate of above , and the second uses soft capturing system recovering typically most fragments successfully. The fragments are measured and investigated using a fragmentation model. The effects of test parameters on the deformation and fracture behavior for three types of structures are discussed in need of modified fragmentation model for shell structural elements.

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