Mechanical Properties of Single-pass Hybrid Laser Arc Welded 25 mm Thick-walled Structures Made of Fine-grained Structural Steel

Friction stir processing (FSP) is a novel severe plastic deformation technique developed in recent years to produce fine-grained structural materials. Through increasing the processing pass, further grain refinement can be achieved. In this paper, the microstructure and mechanical properties of AZ91 magnesium alloy prepared by the single-pass and two-pass FSP were studied. The results showed that the coarse, network-like eutectic β-Mg17Al12 phase was broken into particles and some of them dissolved into the magnesium matrix, and the α-Mg grains were remarkably refined after FSP. The average grain sizes of the single-pass and two-pass FSP alloys were 8.3 μm and 5.8 μm respectively. The ultimate tensile strengths of the specimens were 284.5 MPa and 319.7 MPa, and elongations were 13% and 14.5%, respectively. The improved mechanical properties of the two-pass FSP specimen were mainly attributed to the finer grain size and more homogenized microstructure.

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DILLIMAX 1100

Alloy Digest ◽

10.31399/asm.ad.sa0663 ◽

2012 ◽

Vol 61 (9) ◽

Keyword(s):

Mechanical Properties ◽

Fracture Toughness ◽

Yield Strength ◽

Physical Properties ◽

Structural Steel ◽

Tensile Properties ◽

High Strength ◽

Heat Treating ◽

Fine Grained ◽

Minimum Yield

Abstract Dillimax 1100 is a high-strength, quenched and tempered, fine-grained structural steel with minimum yield strength of 1100 MPa (160 ksi). Its mechanical properties are achieved by water quenching followed by tempering. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, and joining. Filing Code: SA-663. Producer or source: Dillinger Hütte GTS.

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Microstructure and Mechanical Properties of ZK60 Magnesium Alloy Prepared by Multi-Pass Friction Stir Processing

Materials Science Forum ◽

10.4028/www.scientific.net/msf.898.278 ◽

2017 ◽

Vol 898 ◽

pp. 278-283 ◽

Cited By ~ 2

Author(s):

Jun Lin ◽

Da Tong Zhang ◽

Wen Zhang ◽

Cheng Qiu

Keyword(s):

Mechanical Properties ◽

Magnesium Alloy ◽

Friction Stir Processing ◽

Second Phase ◽

Friction Stir ◽

Single Pass ◽

Fine Grained ◽

Microstructure And Mechanical Properties ◽

First Pass ◽

Zk60 Magnesium Alloy

Friction stir processing (FSP) is a novel severe plastic deformation technique developed in recent years to produce fine-grained structural materials. In this paper, the microstructure and mechanical properties of ZK60 magnesium alloy prepared by the single-pass and two-pass FSP were studied. The first-pass was subjected with 800r/min-100mm/min and the second-pass was subjected with 600r/min-100mm/min. The results show that the coarse second phase was dissolved into magnesium matrix and the α-Mg grains were remarkably refined in stir zone after FSP. The average grain sizes of the single-pass and two-pass FSP alloys were 6.8μm and 6.0μm respectively. The microhardnesses of the specimens were 70HV and 65HV, the ultimate tensile strengths were 276MPa and 272MPa, and the elongations were 31.6% and 42.5%, respectively. Through increasing the processing pass, the microstructure became finer and the second phase is dissolved more thoroughly. The combined effect of grain refinement and second phase dissolved was responsible for the change of mechanical properties.

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Effect of Ti Microalloying on Inclusions and Mechanical Properties of Q195 Carbon Structural Steel

AISTech2020 Proceedings of the Iron and Steel Technology Conference ◽

10.33313/380/159 ◽

2020 ◽

Author(s):

L. Zhang ◽

Y. Ren ◽

J. Wang

Keyword(s):

Mechanical Properties ◽

Structural Steel ◽

Carbon Structural Steel

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TBL

Alloy Digest ◽

10.31399/asm.ad.sa0808 ◽

2018 ◽

Vol 67 (1) ◽

Keyword(s):

Structural Steel ◽

Tensile Properties ◽

Heat Treating ◽

Wear Resistant ◽

Fine Grained ◽

Heavy Plate

Abstract TBL is a wear-resistant special structural steel with boron as heavy plate that is normalized with thicknesses up to 100 mm (3.9 in.) made of fine-grained structural steel TBL. This datasheet provides information on composition and tensile properties. It also includes information on forming and heat treating. Filing Code: SA-808. Producer or source: ThyssenKrupp Steel Europe AG.

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DILLIMAX 690

Alloy Digest ◽

10.31399/asm.ad.sa0652 ◽

2012 ◽

Vol 61 (5) ◽

Keyword(s):

Fracture Toughness ◽

Yield Strength ◽

Physical Properties ◽

Structural Steel ◽

Tensile Properties ◽

High Strength ◽

Heat Treating ◽

Fine Grained ◽

Minimum Yield

Abstract Dillimax 550 is a high-strength quenched and tempered, fine-grained structural steel with a minimum yield strength of 690 MPa (100 ksi). Plate is delivered in three qualities: basic, tough, and extra tough. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, and joining. Filing Code: SA-652. Producer or source: Dillinger Hütte GTS.

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DILLIMAX 500

Alloy Digest ◽

10.31399/asm.ad.sa0645 ◽

2012 ◽

Vol 61 (3) ◽

Keyword(s):

Fracture Toughness ◽

Yield Strength ◽

Physical Properties ◽

Structural Steel ◽

Tensile Properties ◽

High Strength ◽

Heat Treating ◽

Fine Grained ◽

High Toughness ◽

Minimum Yield

Abstract Dillimax 500 is a high-strength quenched and tempered, fine-grained structural steel with a minimum yield strength of 500 MPa (72 ksi). Plate is delivered in three qualities: basic, high toughness, and extra tough. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on surface qualities as well as forming, heat treating, and joining. Filing Code: SA-645. Producer or source: Dillinger Hütte GTS.

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