Void nucleation during tensile deformation of a C-Mn structural steel

1984 ◽  
Vol 25 (2) ◽  
pp. 143-151 ◽  
Author(s):  
Y. W. Shi ◽  
J. T. Barnby
Keyword(s):  
Structural Steel ◽  
Tensile Deformation ◽  
Void Nucleation

Characteristics of Hot Ductility and Fracture in Micro-Alloyed Q345B Structural Steel

2011 ◽  
Vol 194-196 ◽  
pp. 150-156 ◽  
Author(s):  
Fang Dong ◽  
Cheng Su ◽  
Yuan Yuan Bai
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Continuous Casting ◽  
Structural Steel ◽  
Void Nucleation ◽  
Hot Ductility ◽  
Strain Rates ◽  
Casting Condition ◽  
Temperature Range ◽  
Scanning Electron

Hot-ductility tests of the microalloyed Q345B structural steel were performed in a tensile machine of Gleeble-1500D at different strain rates of 1.5•10-3/s 、2.5•10-3/s and 2•10-2/s and at temperature range from 1300°C to 700°C(Δ T=100°C ), which are close to the continuous casting condition of steel. Fracture surfaces were examined using a scanning electron microscope; it was found that the hot decrease as strain rate decrease, because the void growth mechanism predominates over void nucleation, giving time for nucleation cracks to grow. The minimum ductility was found at about 800°C for the strain rates of 1.5•10-3/s and 2.5•10-3/s, and the fracture was intergranular. The steel has good plasticity in temperature range from 1200°C to 900°C which is suitable for straighten operation.

scholarly journals Void Nucleation, and Growth during Tensile Deformation of Nanoscale Precipitated Steel and Bainitic Steel

2019 ◽  
Vol 59 (7) ◽  
pp. 1362-1368
Author(s):  
Yasutaka Mugita ◽  
Masatoshi Aramaki ◽  
Masayuki Yamamoto ◽  
Akihisa Takeuchi ◽  
Miyuki Takeuchi ◽  
...  
Keyword(s):  
Tensile Deformation ◽  
Void Nucleation ◽  
Nucleation And Growth ◽  
Bainitic Steel ◽  
Void Nucleation And Growth

APPLICATION OF DAMAGE MODEL WITH MATERIAL FLOW EVALUATION TO HIGH TEMPERATURE COMPRESSION PROCESSES

2012 ◽  
Vol 26 (03) ◽  
pp. 1150012 ◽  
Author(s):  
CHANSEO JEONG ◽  
JUN YANAGIMOTO
Keyword(s):  
Material Flow ◽  
Tensile Deformation ◽  
Sintered Material ◽  
Cylindrical Specimen ◽  
Void Nucleation ◽  
Damage Model ◽  
Ductile Failure ◽  
Experimental Investigations ◽  
Compression Process ◽  
Gurson Model

Mechanisms of ductile failure in a compression process are studied, based on micro-structural considerations, with analytical and experimental investigations performed on a cylindrical specimen. Geometrical softening is able to occur by void if the shear band is generated inside of materials. The original Gurson model is used to analyze tensile deformation, and a modified Gurson model is proposed, which incorporates damage accumulation under shear and compression. This modified Gurson model is also applied to the void closure of sintered material under compression loading. However, the compressed materials must be considered in both the void nucleation and closure, because the void is nucleated and closed at a specific angle. The results of individual analyses of nucleation and closure do not agree with observations, but the analysis considered here, of both the nucleation and closure of a void, corresponds well with experimental results.

scholarly journals Examination of Tensile Deformation and Void Nucleation Behaviors of Duplex Stainless Steel Using Nano-Indentation Hardness Test

2014 ◽  
Vol 100 (10) ◽  
pp. 1261-1266 ◽  
Author(s):  
Masatoshi Aramaki ◽  
Satoshi Uchida ◽  
Kyono Yasuda ◽  
Makoto Oikawa ◽  
Osamu Furukimi
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Tensile Deformation ◽  
Void Nucleation ◽  
Hardness Test ◽  
Indentation Hardness ◽  
Nano Indentation

scholarly journals Void Nucleation, Growth, and Coalescence Observed by Synchrotron Radiation X-ray Laminography during Tensile Deformation of Fe–0.02 mass% N Alloy

2018 ◽  
Vol 58 (5) ◽  
pp. 943-951 ◽  
Author(s):  
Osamu Furukimi ◽  
Shun Harada ◽  
Yasutaka Mugita ◽  
Masatoshi Aramaki ◽  
Masayuki Yamamoto ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Tensile Deformation ◽  
Void Nucleation ◽  
X Ray ◽  
Nucleation Growth

scholarly journals VOID NUCLEATION AND GROWTH DURING TENSILE DEFORMATION IN STEEL

Fracture 84 ◽  
1984 ◽  
pp. 1287-1294 ◽  
Author(s):  
J.T. Barnby ◽  
C.J. Flavell ◽  
A.S. Nadkarni ◽  
Y.W. Shi
Keyword(s):  
Tensile Deformation ◽  
Void Nucleation ◽  
Nucleation And Growth ◽  
Void Nucleation And Growth

scholarly journals Void nucleation behavior of single-crystal high-purity iron specimens subjected to tensile deformation

2017 ◽  
Vol 701 ◽  
pp. 221-225 ◽  
Author(s):  
Osamu Furukimi ◽  
Chatcharit Kiattisaksri ◽  
Yuji Takeda ◽  
Masatoshi Aramaki ◽  
Satoshi Oue ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Purity ◽  
Tensile Deformation ◽  
Void Nucleation ◽  
Nucleation Behavior ◽  
Purity Iron ◽  
High Purity Iron
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