Tensile flow and work hardening behaviour of type 316L(N) austenitic stainless steel in the framework of one-internal-variableand two-internal-variable approaches

2015 ◽  
Vol 636 ◽  
pp. 269-278 ◽  
Author(s):  
B.K. Choudhary ◽  
J. Christopher
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Work Hardening ◽  
Internal Variable ◽  
Type 316L

scholarly journals Comparison of Vacuum Sintered and Selective Laser Melted Steel AISI 316L

2017 ◽  
Vol 62 (4) ◽  
pp. 2125-2131 ◽  
Author(s):  
Z. Brytan
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Selective Laser Melting ◽  
Strength Properties ◽  
Laser Melting ◽  
Charpy Test ◽  
Steel Type ◽  
Type 316L ◽  
Static Tensile

AbstractThe paper presents the results of the basic mechanical properties determined in the static tensile test, impact un-notched Charpy test and hardness of austenitic stainless steel type 316L produced by two techniques: classical pressing and sintering in a vacuum with rapid cooling and selective laser melting (SLM). In this work fracture surface of Charpy test, samples were studied.The results indicate that application of selective laser melting (SLM) makes it possible to double increase the strength properties of components manufactured from austenitic stainless steel type 316L compared to sintering in a vacuum. Resulted in mechanical properties strongly depend on porosity characteristic and the presence of superficial oxides in the case of sintered steel and the character of observed microstructural defects deriving from non-fully melted powder particles and the formation of voids between subsequently melted pool tracks during the SLM.

Comparison of creep rupture behaviour of type 316L(N) austenitic stainless steel joints welded by TIG and activated TIG welding processes

2011 ◽  
Vol 528 (22-23) ◽  
pp. 6971-6980 ◽  
Author(s):  
T. Sakthivel ◽  
M. Vasudevan ◽  
K. Laha ◽  
P. Parameswaran ◽  
K.S. Chandravathi ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Creep Rupture ◽  
Tig Welding ◽  
Type 316L ◽  
Steel Joints ◽  
Welding Processes

Influence of Different Deformation on Microstructure and Properties of 304 Austenitic Stainless Steel

2012 ◽  
Vol 500 ◽  
pp. 690-695 ◽  
Author(s):  
Fei Han ◽  
Gao Yong Lin ◽  
Qian Li ◽  
Rui Fen Long ◽  
Da Shu Peng ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Work Hardening ◽  
Room Temperature ◽  
Austenitic Stainless Steels ◽  
Fcc Metals ◽  
Steel Sheets ◽  
Deformation Twins ◽  
304 Austenitic Stainless Steel ◽  
Ε Martensite

In this paper, a kind of 304 austenitic stainless steel sheets has been investigated, and systemic tests were conducted to study the law and mechanics of work hardening of 304 austenitic stainless steel. The results of microstructure analyzing of 304 austenitic stainless steels showed that when it was deformed by means of tensile testing at room temperature, obvious work hardening was caused by the changes of structure during the deformation. The strain-induced α-martensite, ε-martensite and deformation twins enhanced flow stress obviously, which is the main reason for the strong work hardening in FCC metals and alloys with low stacking fault energy as 304 austenitic stainless steel.

Influence of Strain Path on Work Hardening and Texture in an Austenitic Stainless Steel

2014 ◽  
Vol 783-786 ◽  
pp. 2567-2572
Author(s):  
Mattias Gärdsback ◽  
Guo Cai Chai ◽  
David Hedström ◽  
Katarina Persson
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Crystal Plasticity ◽  
Work Hardening ◽  
Strain Path ◽  
Fiber Texture ◽  
Plasticity Model ◽  
Loading Direction ◽  
Crystal Plasticity Model ◽  
Super Austenitic Stainless Steel

The effect of strain path on work hardening and texture for a super austenitic stainless steel was investigated using both experiments and modeling. Compression deformation tests by stepwise changing loading direction in two and three dimensions were performed on cubic specimens at room temperature. The results were compared to uniaxial compression with equal accumulative strain, up to 20%, and uniaxial tension with equal final strain, up to 10% elongation of the longest side. The textures in all samples were analyzed using pole figures from EBSD analysis. Because of the high stacking fault energy of this super austenitic stainless steel, the texture was dominated by <110>-fiber texture in the compressive direction for the uniaxial compression, <111>- and <100>-fiber texture in the tensile direction for the uniaxial tensile test, and a combination of all these for the cube deformation. The density of the texture was much weaker for samples where the loading direction altered, if samples with equal accumulated strain were compared. The cube deformation was also modeled using a crystal plasticity model. The crystal plasticity model consists of a representative volume element (RVE) containing crystal grains with random orientations. The Taylor assumption was used for homogenization between the macro-and subscale. The material parameters in the crystal plasticity model were determined by calibration of its macroscopic response to experimental data. The simulated textures correspond rather well to the experimental results, but the work hardening should be completed to take into account kinematic hardening.

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