Experimental Investigations on Explosive Cladding of Cp-Titanium / AISI 304 Stainless Steel

2008 ◽  
Vol 580-582 ◽  
pp. 629-632 ◽  
Author(s):  
Pezhman Farhadi Sartangi ◽  
Seiyed Ali Asghar Akbari Mousavi
Keyword(s):  
Intermetallic Layer ◽  
Dissimilar Materials ◽  
Composite Plates ◽  
304 Stainless Steel ◽  
Experimental Investigations ◽  
Aisi 304 ◽  
Explosive Cladding ◽  
Metallic Bond ◽  
Wavy Interface ◽  
Weldability Window

The purpose of this study is to produce composite plates by explosive cladding process. This is a process in which the controlled energy of explosives is used to create a metallic bond between two similar or dissimilar materials. The welding conditions were tailored through parallel geometry route by using different explosive ratios to produce both wavy and straight interfaces. In this investigation, a two-pronged study was adopted to establish the conditions required for producing successful solid state welding: (a) Analytical calculations to determine the weldability window; (b) Metallurgical investigations of experiments carried out under different conditions. The required parameters in the experiments were selected through numerical simulations. The analytical calculations confirm the experimental results. Optical microscopy studies show that a transition from a smooth to wavy interface occurs with increase in explosive ratio. Scanning electron microscopy studies show the formation of intermetallic layer in the interface.

scholarly journals Mechanical and Microstructural Properties of Friction Welded AISI 304 Stainless Steel to AISI 1060 Steel AISI 1060

2014 ◽  
Vol 59 (3) ◽  
pp. 841-846 ◽  
Author(s):  
H. Ates ◽  
N. Kaya
Keyword(s):  
Welded Joint ◽  
Dissimilar Materials ◽  
304 Stainless Steel ◽  
Tensile Fracture ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Rotary Friction Welding ◽  
Quality Aspects ◽  
Steel Aisi ◽  
Mechanical And Microstructural Properties

Abstract Rotary Friction welding is one of the most popular methods of joining similar and dissimilar materials. It is widely used with metals and thermoplastics in a wide variety of aviation, transport and aerospace industrial component designs. This study investigates the influence of friction and upsetting pressures on the hardness, tensile properties and microstructure of the welds. The experimental results showed that as the friction and upsetting pressures increased, the hardness and tensile strength values increased, as well. The tensile fracture of welded joint occurred in the AISI 1060 side. The friction processed joints were evaluated for their integrity and quality aspects by optical and scanning electron microscopy. For the perfect interfacial bonding, sufficient upsetting and friction pressures are necessary to reach the optimal temperature and severe plastic deformation to bring these materials within the attraction range.

Effect of Process Parameters on Friction Stir Lap Welded 304 Stainless Steel and 5052 Aluminium Alloys

2020 ◽  
Author(s):  
Veerendra Chitturi ◽  
Srinivasa Rao Pedapati ◽  
Mokhtar Awang
Keyword(s):  
Stainless Steel ◽  
Penetration Depth ◽  
Process Parameters ◽  
Intermetallic Layer ◽  
Microstructural Analysis ◽  
Weld Zone ◽  
Chemical Properties ◽  
Dissimilar Materials ◽  
304 Stainless Steel ◽  
Friction Stir

Abstract Joining of two different materials like aluminium and steel is a challenging task because of the vast differences in their physical, mechanical and chemical properties. Friction stir welding is a solid-state joining technique which is successful in joining dissimilar materials. In this study, the tool made with Tungsten-Rhenium with a pin length of 4.1 mm is used to weld 4 mm stainless steel and 2 mm aluminium plates in lap configuration with steel as the top plate. The process parameters used in the study are tool rotational speeds between 800 rpm and 1200 rpm, traverse speed ranging from 20 mm/min to 40 mm/min, penetration depth of 4.1 mm to 4.3 mm with a varying tilt between from 0° and 2.5°. The Aluminium is melted during the process because of the high temperature and is thrown out in the form of flash resulting in the formation of defects and a cup like structure at the weld zone. Microstructural analysis confirmed that formation of a sound joint without defects was impossible. The mechanically stirred zone consists of a thin intermetallic layer at the interface of aluminium and steel plates. The thickness of the intermetallic layers formed were between 5 μm and 20 μm. The maximum shear strength of 2.7 kN was achieved with tool rotational speed of 1000 rpm, penetration depth of 4.3 mm and welding speed of 30 mm/min when the angle was tilted at 0°. It is evident from the experiments that the joints achieved were not defect free because of improper mixing of the material.

Comparison of Recovery and Recrystallization in Stainless Steel Following Plane-Wave Shock Loading and Explosive Forming

1970 ◽  
Vol 28 ◽  
pp. 428-429 ◽  
Author(s):  
J. A. Korbonski ◽  
L. E. Murr
Keyword(s):  
Stainless Steel ◽  
Shock Loading ◽  
Pressure Pulse ◽  
Shock Pressure ◽  
304 Stainless Steel ◽  
Strain Rates ◽  
Two Dimensional ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Explosive Forming

Comparison of recovery rates in materials deformed by a unidimensional and two dimensional strains at strain rates in excess of 104 sec.−1 was performed on AISI 304 Stainless Steel. A number of unidirectionally strained foil samples were deformed by shock waves at graduated pressure levels as described by Murr and Grace. The two dimensionally strained foil samples were obtained from radially expanded cylinders by a constant shock pressure pulse and graduated strain as described by Foitz, et al.

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