Influence of Hot Rolling and Solution Treatment on the Microstructure and Mechanical Properties of High-Boron Duplex Stainless Steel 0Cr21Ni5Ti-2B

In order to further expand the application scope of 2205 duplex stainless steel (DSS), its microstructure and mechanical properties require as much attention as its corrosion properties. In this study, 2205DSSs were prepared by aluminothermic reaction and the microstructures and mechanical behavior of the rolled alloys were analyzed. The micro-nanocrystals composite structure appears in the alloys after rough rolling with deformation of 40% at [Formula: see text]C followed by finishing rolling with deformation of 30%, 50% and 70% at [Formula: see text]C. With the increase of rolling deformation, the two-phase structure is gradually elongated, the average size of the two-phase grains is gradually increased, and some [Formula: see text] phase will change to [Formula: see text] phase, the volume fraction of [Formula: see text] phase is gradually increased, and the distribution of nanocrystals is gradually uniform. Meanwhile, the fracture mode of alloy is gradually changed from ductile fracture to brittle fracture. The strength and hardness of the alloy increase gradually.

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Centrifugal Casting Practice and Microstructure and Mechanical Properties of a 2205 Duplex Stainless Steel

Materials Science Forum - PRICM-5 ◽

10.4028/0-87849-960-1.2527 ◽

2005 ◽

pp. 2527-2532

Author(s):

S.M. Lee ◽

S. Yang ◽

S.T. Kim ◽

Y.S. Park ◽

B.M. Moon

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Duplex Stainless Steel ◽

Centrifugal Casting ◽

2205 Duplex Stainless Steel ◽

Microstructure And Mechanical Properties

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Effect of Solution Temperature on the Microstructure and Mechanical Properties of Wrought 316LN Stainless Steel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.915-916.576 ◽

2014 ◽

Vol 915-916 ◽

pp. 576-582 ◽

Cited By ~ 1

Author(s):

H. C. Wu ◽

B. Yang ◽

Ming Xian Zhang ◽

Sheng Long Wang ◽

Y. Z. Shi

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Stainless Steel ◽

Solution Treatment ◽

Solution Temperature ◽

Tensile Fracture ◽

316Ln Stainless Steel ◽

Microstructure And Mechanical Properties ◽

Average Grain Size ◽

Fracture Morphologies

The effect of forging and solution temperature on the microstructure and mechanical properties of 316LN stainless steel has been investigated by optical microscope, tensile testing machine and scanning electron microscope (SEM). The results show that the average grain size of the steel was refined from 150μm to 70μm after forging and solution treatment. With increasing solution temperature, the tensile strength and yield strength decreased. On the contrary, the elongation of the steel increased with increasing solution temperature except at 1200°C. The tensile strength of the samples forged at 1100°C is better than those of the samples forged at 1000 and 1200°Cafter solution treatment. Tensile fracture morphologies observation showed that all the specimens have ductile fracture morphologies. With increasing solution temperature, the toughness of the steel becomes better and better except at 1200°C. Both the microstructure and mechanical properties of the 316LN stainless steel have been improved after forging at 1100°C and following by solution treatment at 1150°C.

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Research on Mechanical Properties of High Boron Alloyed Stainless Steel Composite Plate Containing Titanium

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.401-403.804 ◽

2013 ◽

Vol 401-403 ◽

pp. 804-808

Author(s):

Lin Lin Yuan ◽

Jing Tao Han ◽

Jing Liu ◽

Yan Long Liu

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Composite Plate ◽

Solution Treatment ◽

Composite Plates ◽

Solution Temperature ◽

Forming Process ◽

High Boron ◽

Steel Composite ◽

Ti Content

High boron alloyed stainless steel composite plates with different Ti content by cladding casting and hot forming process were fabricated. The mechanical properties of composite plates were analyzed after solution treatment. The results show that the composite plate has optimal microstructure and properties at 1100°C solution temperature, holding for 4h.The comprehensive properties of the composite plates are improved with the increase of Ti content, but excess Ti content can lower the plasticity. The elongation and the tensile strength of composite plate reaches 29% and 527MPa respectively, the mechanical properties can meet and exceed the supply standard requirements in ASTM A887-89 of U.S. when the reasonable content of Titanium is about 5%.

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