scholarly journals Effect of friction welding conditions on tensile strength and hardness of AISI 310 stainless steel joints

2018 ◽  
Vol 204 ◽  
pp. 06004 ◽  
Author(s):  
Muhammad Iswar ◽  
Rusdi Nur
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Friction Welding ◽  
Rotational Speed ◽  
Welding Process ◽  
Raw Material ◽  
Welding Temperature ◽  
Lathe Machine ◽  
Joint Section ◽  
Steel Joints

This study aims to determine the effect of rotational speed and forging time on tensile strength and hardness through the friction welding process of stainless steel AISI 310. The research was carried out by friction welding process by using the lathe machine with varying rotational speed (550, 1020 and 1800 rpm), forging time (25, 35, 45 seconds), and welding temperature of 1050°C ± 10°. Axial pressure was obtained through the addition of a hydraulic system to the release head of a lathe machine with a forging pressure of 123.8 N/mm2. Furthermore, the friction welding results were tested mechanically by conducting the tensile and hardness tests. The experimental results showed that the highest tensile strength of the friction welding result of 706,61 N/mm2 was obtained at 1800 rpm and 45 seconds, and this value is lower when compared with raw material (780,25 N/mm2). The highest hardness value (61.5 HRC-A) was located on the welded joint section with 550 rpm of rotational speed and 25 seconds of forging time. The hardness of the parent metal is 69.45 HRC-A. The rotational variation influences the hardness value, the higher the rotational speed will increase the hardness. The longer of forging time will decrease the hardness.

scholarly journals Tensile strength Characteristics on Dissimilar Metal Friction Welding of Ti-6Al-4V & SS304L

2020 ◽  
Vol 12 (1) ◽  
pp. 157-166
Author(s):  
R. RAMESH KUMAR ◽  
J. M. BABU
Keyword(s):  
Stainless Steel ◽  
Friction Welding ◽  
Rotational Speed ◽  
Welding Process ◽  
Tensile Load ◽  
Spray Coating ◽  
High Rotational Speed ◽  
Friction Pressure ◽  
Coating Method ◽  
Experimental Project

In this research, the method of friction welding joints in Titanium and Stainless Steel with aluminium interlayer coating is created. The friction welding process is a solid-state joining process of dissimilar or similar materials. This friction welding process needs high rotational speed and high forging pressure. Titanium and stainless steel materials melting temperatures are around 1600OC. Welding process which needed high-pressure, temperature and good velocity regions. Titanium and stainless steels are coated 300OC ranges to applied aluminium spray coating method with constant pressure. The source of the aluminium coating is strong titanium and stainless steel adhesive strength. In this experimental project, four different trials of titanium and stainless steel joints have been performed at different speeds and constant forging pressures. Trial 4 connections of titanium and stainless steel made of 2100OC temperature and forging pressure of 60 MPa, friction time of 5 sec and friction pressure of 70 MPa. Friction welding experiments were completed with the help of friction time, forging pressure, rotational speed and friction pressure. Tensile load stress results are calculated by the UTM machine and evaluated the results of design experts with ANOVA table and RSM.

Study of the Linear Friction Welding Process of Dissimilar Ti-6Al-4V–Stainless Steel Joints

2016 ◽  
Vol 31 (16) ◽  
pp. 2115-2122 ◽  
Author(s):  
Antonello Astarita ◽  
Fabio Scherillo ◽  
Michele Curioni ◽  
Paolo Aprea ◽  
Filomena Impero ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Friction Welding ◽  
Welding Process ◽  
Linear Friction Welding ◽  
Linear Friction ◽  
Steel Joints

scholarly journals Microstructure and Mechanical Properties of Dissimilar Friction Welding Ti-6Al-4V Alloy to Nitinol

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 109
Author(s):  
Ateekh Ur Rehman ◽  
Nagumothu Kishore Babu ◽  
Mahesh Kumar Talari ◽  
Yusuf Siraj Usmani ◽  
Hisham Al-Khalefah
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flow Stress ◽  
Intermetallic Compound ◽  
Ultimate Tensile Strength ◽  
Friction Welding ◽  
Welding Process ◽  
Weld Interface ◽  
Dissimilar Joints ◽  
Dissimilar Alloys

In the present study, a friction welding process was adopted to join dissimilar alloys of Ti-Al-4V to Nitinol. The effect of friction welding on the evolution of welded macro and microstructures and their hardnesses and tensile properties were studied and discussed in detail. The macrostructure of Ti-6Al-4V and Nitinol dissimilar joints revealed flash formation on the Ti-6Al-4V side due to a reduction in flow stress at high temperatures during friction welding. The optical microstructures revealed fine grains near the Ti-6Al-4V interface due to dynamic recrystallization and strain hardening effects. In contrast, the area nearer to the nitinol interface did not show any grain refinement. This study reveals that the formation of an intermetallic compound (Ti2Ni) at the weld interface resulted in poor ultimate tensile strength (UTS) and elongation values. All tensile specimens failed at the weld interface due to the formation of intermetallic compounds.

METALLURGICAL AND CORROSION CHARACTERIZATION OF POST WELD HEAT TREATED DUPLEX STAINLESS STEEL (UNS S31803) JOINTS BY FRICTION WELDING PROCESS

2016 ◽  
Vol 23 (03) ◽  
pp. 1650013 ◽  
Author(s):  
MOHAMMED ASIF M. ◽  
KULKARNI ANUP SHRIKRISHNA ◽  
P. SATHIYA
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Friction Welding ◽  
Volume Fraction ◽  
Welding Process ◽  
Equilibrium Temperature ◽  
Weld Interface ◽  
Heat Treated ◽  
Weld Heat

The present study focuses on the metallurgical and corrosion characterization of post weld heat treated duplex stainless steel joints. After friction welding, it was confirmed that there is an increase in ferrite content at weld interface due to dynamic recrystallization. This caused the weldments prone to pitting corrosion attack. Hence the post weld heat treatments were performed at three temperatures 1080[Formula: see text]C, 1150[Formula: see text]C and 1200[Formula: see text]C with 15[Formula: see text]min of aging time. This was followed by water and oil quenching. The volume fraction of ferrite to austenite ratio was balanced and highest pit nucleation resistance were achieved after PWHT at 1080[Formula: see text]C followed by water quench and at 1150[Formula: see text]C followed by oil quench. This had happened exactly at parameter set containing heating pressure (HP):40 heating time (HT):4 upsetting pressure (UP):80 upsetting time (UP):2 (experiment no. 5). Dual phase presence and absence of precipitates were conformed through TEM which follow Kurdjumov–Sachs relationship. PREN of ferrite was decreasing with increase in temperature and that of austenite increased. The equilibrium temperature for water quenching was around 1100[Formula: see text]C and that for oil quenching was around 1140[Formula: see text]C. The pit depths were found to be in the range of 100[Formula: see text]nm and width of 1.5–2[Formula: see text][Formula: see text]m.

An Effective Approach Based on Response Surface Methodology for Predicting Friction Welding Parameters

2016 ◽  
Vol 35 (3) ◽  
pp. 235-241
Author(s):  
Sare Celik ◽  
Aslan Deniz Karaoglan ◽  
Ismail Ersozlu
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Friction Welding ◽  
Welding Process ◽  
Raw Material ◽  
Maximum Temperature ◽  
Welding Parameters ◽  
Rotating Speed ◽  
Minimum Number ◽  
Normal Carbon

AbstractThe joining of dissimilar metals is one of the most essential necessities of industries. Manufacturing by the joint of alloy steel and normal carbon steel is used in production, because it decreases raw material cost. The friction welding process parameters such as friction pressure, friction time, upset pressure, upset time and rotating speed play the major roles in determining the strength and microstructure of the joints. In this study, response surface methodology (RSM), which is a well-known design of experiments approach, is used for modeling the mathematical relation between the responses (tensile strength and maximum temperature), and the friction welding parameters with minimum number of experiments. The results show that RSM is an effective method for this type of problems for developing models and prediction.

scholarly journals Tensile Strength Change of Silicon Nitride/Stainless Steel Joints during Neutron Irradiation

2005 ◽  
Vol 23 (1) ◽  
pp. 88-94
Author(s):  
Masako NAKAHASHI ◽  
Toshiaki ITO ◽  
Yasushi GOTO ◽  
Yuji YASUDA ◽  
Xia ZHU ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Silicon Nitride ◽  
Neutron Irradiation ◽  
Strength Change ◽  
Steel Joints

Welding Process Development for Spent Nuclear Fuel Canister Repair

2019 ◽  
Author(s):  
Wei Tang ◽  
Stylianos Chatzidakis ◽  
Roger Miller ◽  
Jian Chen ◽  
Doug Kyle ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Nuclear Fuel ◽  
Arc Welding ◽  
Spent Nuclear Fuel ◽  
Welding Process ◽  
Tensile Residual Stress ◽  
304L Stainless Steel ◽  
Welding Temperature ◽  
Stress Direction

Abstract The potential for stress corrosion cracking (SCC) of welded stainless-steel interim storage containers for spent nuclear fuel (SNF) has been identified as a high priority data gap. This paper presents a fusion welding process that was developed for SNF canister repair. Submerged arc welding (SAW) was developed to weld 12.7 mm (0.5 in.) thick 304L stainless steel plates to simulate the initial welds on SNF canisters. The SAW procedure was qualified following ASME Boiler and Pressure Vessel Code requirements. During SAW, the welding temperature was recorded at various locations by using thermocouples. After SAW, weld microstructures were characterized, joint mechanical properties were tested, and the maximum tensile residual stress direction was identified. After SAW procedure qualification, artificial cracks were excavated perpendicular to the maximum tensile residual stress direction in the SAW heat affected zone. Machine cold-wire gas tungsten arc welding (CW-GTAW) was developed and used for repair welding at cracked locations.

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