The Effects of Dynamic Strain Aging on the Mechanical Properties of Several HSLA Steels

1979 ◽  
Author(s):  
J. A. Yaker ◽  
C-C. Li ◽  
W. C. Leslie
Keyword(s):  
Mechanical Properties ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain ◽  
Hsla Steels

The effect of dynamic strain aging on room temperature mechanical properties of high martensite dual phase (HMDP) steel

2012 ◽  
Vol 550 ◽  
pp. 325-332 ◽  
Author(s):  
M.S. Shahriary ◽  
B. Koohbor ◽  
K. Ahadi ◽  
A. Ekrami ◽  
M. Khakian-Qomi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Room Temperature ◽  
Dynamic Strain ◽  
Dual Phase

Dynamic Strain Aging in the Fe-Mn-Cu-C TWIP Steels

2013 ◽  
Vol 668 ◽  
pp. 861-864 ◽  
Author(s):  
Hai Jun Liu ◽  
Ding Yi Zhu ◽  
Xian Peng ◽  
Zhen Ming Hu ◽  
Ming Jie Wang
Keyword(s):  
Mechanical Properties ◽  
Strain Rate ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Rate Sensitivity ◽  
Tensile Tests ◽  
Dynamic Strain ◽  
Work Hardening Rate ◽  
Twip Steels ◽  
High Work

Strain rate jump tests were performed on the Fe-Mn-Cu-C TWIP Steels to determine the strain rate sensitivity, and serrated plastic flow was observed in the stress-strain curves during tensile tests at different constant strain rates ranging from 2.5×10-4S-1 to 2.5×10-2S-1. The Fe-Mn-Cu-C TWIP Steels exhibit high work hardening rate and outstanding mechanical properties, The excellent mechanical properties are attributed to dynamic strain aging(DSA) effect, which result from the interaction between Mn(Cu)-C atom atmosphere, C-vacancy, C-C pairs and moving dislocations.

scholarly journals Effect of Dynamic Strain Aging on the Plastic Anisotropy and Mechanical Properties of Low-Carbon Phosphorus Steels

1978 ◽  
Vol 3 (1) ◽  
pp. 37-51
Author(s):  
W. A. Spitzig ◽  
Hsun Hu ◽  
R. J. Sober
Keyword(s):  
Mechanical Properties ◽  
Dislocation Density ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Plastic Anisotropy ◽  
Aging Treatment ◽  
Dynamic Strain ◽  
Low Carbon ◽  
Tension Testing ◽  
Subsequent Deformation

The effects of a dynamic-strain-aging treatment, as compared with a static-strain-aging treatment, on plastic anisotropy and mechanical properties has been determined for vacuum-melted low-carbon phosphorus steels containing various amounts of silicon. It was found that prestraining at 185°C, as compared with straining at 22°C followed by aging for four hours at 100°C, resulted in about twice the increase in yield strength (90 versus 48 MPa) on subsequent tension testing at 22°C and an improvement in rm values from about 1.8 to 2.0.Analyses of the textures and dislocation structures of the steels after the two strain-aging treatments and after subsequent deformation at 22°C showed that a greater dislocation density gives rise to the greater strengthening of dynamic-strain-aged specimens, and a finer polyhedral network of dislocation tangles is believed to be the reason for their higher rm values.

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