A kind of yield strength 800MPa grade high ductilities hot-rolling high-strength steel and its manufacturing method, the weight percent of chemical compone... 王 煥 榮,楊 阿 娜,王巍 被引量: 0发表: 2019年 Relationship between Yield stress and yield Strength on Various Grade of steel Being...
Manufacturing processRelative densityBase metalComp yield stress (MPa)Elastic mod. (MPa)U. tensile stress (MPa)Min energy abs (MJ/m3 at 50% strain)Ref Casting HS — Al-steel composite 0.42 A356 + 316 L 52–58 10000–12000 51 (at 57%) [22], [24] Ceramic precursor — CaHPO4*2H2O ...
Yield stress σy is evaluated in a duplex steel with α + γ lamellar structure by calculating the stress for the propagation of pile-up dislocations in one phase into another phase. Effective grain size of a lamella is determined to calculate the contribution of each boundary of a lamella to...
Static and dynamic properties were gathered for bars satisfying ASTM A615, A15, A432, A431, and A706, with yield stresses ranging from 42 to 103 ksi (290 to 710 MPa). Strength enhancement with strain rate was expressed in the form of a dynamic increase factor (DIF) defined as the ratio...
The invention relates to 800MPa-grade (yield strength) quenched-tempered high-strength steel and a production method thereof. The steel comprises the following components in percentage by weight: 0.07-0.15% of C, 0.10-0.30% of Si, 0.80-1.60% of Mn, 0.20-0.70% of Cr, 0.10-0.40% of Mo,...
An extra high tensile steel having an excellent stress corrosion cracking resistance and a yield strength of 1080 MPa or more is provided. A slab comprising, in terms of % by weight, 0.03 to 0.08% of C, 0.01 to 0. 10% of Si, 0.05 to 0.65% of Mn, 8.0 to 11.0% of Ni, 0.5 to ...
stresses away from stress concentration areas. Very little research has been carried out on the behaviour and strength of structural members composed of ultra-high strength steel [14,16,22,26] - even less on bolted connections especially for steels with yield stress higher than 1000 MPa. ...
The deep rolling parameters were optimized to obtain the maximum compressive residual stress at the surface which was slightly over –900 MPa [7]. The specimens have been in use since 2015, the year of manufacture. Specimen 3 was called GKN because it was used in a round-robin test in ...
547 MPa). This result indicates that the strain hardening occurring in the repeated cyclic deformation is different from the strain hardening occurring in typical stress-strain curves, and that it might be mainly affected by the microstructures. Since the yield strength of the pipes is estimated...
The invention provides a steel plate with high strength and toughness and 690MPa of yield strength and a preparation process thereof. The steel plate comprises the following components by weight percent: 0.07-0.09% of C, 0.10-0.35% of Si, 0.50-1.60% of Mn, 0.02-0.05% of Nb, 0.01-0.02%...