Characterisation of Mechanical Property Variation Across an Inertia Friction Weld of a CrMoV Steel

2014 ◽  
pp. 713-720 ◽  
Author(s):  
C. J. Bennett ◽  
O. Iracheta ◽  
W. Sun
Keyword(s):  
Mechanical Property ◽  
Property Variation ◽  
Friction Weld ◽  
Inertia Friction Weld

scholarly journals Calculating the energy required to undergo the conditioning phase of a titanium alloy inertia friction weld

2016 ◽  
Vol 24 ◽  
pp. 186-194 ◽  
Author(s):  
R.P. Turner ◽  
D. Howe ◽  
B. Thota ◽  
R.M. Ward ◽  
H.C. Basoalto ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Conditioning Phase ◽  
Friction Weld ◽  
Inertia Friction Weld

scholarly journals A Study of the Deformation Derivatives for a Ti-6Al-4V Inertia Friction Weld

2021 ◽  
Vol 06 (02) ◽  
pp. 114-121
Author(s):  
Richard P. Turner ◽  
Nils Warnken ◽  
Jeffery W. Brooks
Keyword(s):  
Friction Weld ◽  
Inertia Friction Weld

Microstructure transition and mechanical property variation of Al0.6CoCrFeNi high-entropy alloys prepared under different cooling rates

2019 ◽  
Vol 6 (10) ◽  
pp. 1065h4 ◽  
Author(s):  
Lili Ma ◽  
Tangqing Cao ◽  
Jianing Wang ◽  
Yunfei Xue ◽  
Huinan Yu
Keyword(s):  
Mechanical Property ◽  
High Entropy Alloys ◽  
Cooling Rates ◽  
Property Variation ◽  
High Entropy

Microstructure and Mechanical Properties in Ultra-High Strength Steel with Tensile Strength 1000MPa

2012 ◽  
Vol 567 ◽  
pp. 79-87 ◽  
Author(s):  
Yu Xi Ma ◽  
Bin Guo ◽  
Lin Zheng ◽  
Chang Song ◽  
Chang Ming Liu ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Tensile Strength ◽  
High Strength Steel ◽  
High Strength ◽  
Second Phase ◽  
Tempering Temperature ◽  
Property Variation ◽  
Heat Process ◽  
Ultra High Strength Steel ◽  
Energy Spectrometer

Ultra-high Strength Steel heat process mechanical property energy spectrometer Abstract: Microstructure and mechanical property variation vs. heat process was investigated by means of metallography and electron microscopy in Ultra-high Strength Steel with tensile strength 1000Mpa. The results show that microstructure variation in the steel with tempering temperature increasing is as follows:tempered martensite→main tempered sorbite and a small amount of M/A, at the meantime, growing in quantities and volume of second-phase, always decreasing in strength, firstly increasing and then decreasing in impact energy and elongation. Study on precipitated mechanism of second-phases, the crystal structure and volume of precipitation was characterized by TEM observation and energy spectrometer.

Phase transformations across high strength dissimilar steel inertia friction weld

2008 ◽  
Vol 204 (1-3) ◽  
pp. 48-58 ◽  
Author(s):  
Richard Moat ◽  
Mallikarjun Karadge ◽  
Michael Preuss ◽  
Simon Bray ◽  
Martin Rawson
Keyword(s):  
Phase Transformations ◽  
High Strength ◽  
Dissimilar Steel ◽  
Friction Weld ◽  
Inertia Friction Weld

scholarly journals Measurement Uncertainty and Representation of Tensile Mechanical Properties in Metals

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1733
Author(s):  
Tingdong Xu ◽  
Kai Wang ◽  
Shenhua Song
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Measurement Uncertainty ◽  
Strain Rate ◽  
Grain Boundaries ◽  
Elastic Deformation ◽  
Tensile Testing ◽  
New Technology ◽  
Property Variation ◽  
Technology System

The International Organization for Standardization Technical Committee for Metallic Materials—Tensile Testing stated in 2011 that temperature and strain rate variations would induce a change in the results of tensile tests, termed as the measurement uncertainty of tensile mechanical properties in metals. The uncertainty means that the tensile testing results of a specimen at a temperature and strain rate are not the original mechanical properties possessed prior to the testing. Hence, since the time of Galileo the results of tensile testing have been incorrectly interpreted as the original mechanical properties of specimens, thereby forming a paradox. At the turn of the 21st century, the micro-theory of metallic elastic deformation was proposed, identifying that a change in microstructure at atomic level could occur during elastic deformation, leading to a change in the concentration of solute (impurity) at grain boundaries/around dislocations. The micro-theory has been used to explain the mechanism of the measurement uncertainty. Different tensile temperatures and strain rates correspond to different durations of elastic deformation during tensile testing, different concentrations of solute at grain boundaries/dislocations, and thus different mechanical properties. On this basis, a new technology system of tensile testing is suggested, i.e., a “mechanical property–tensile strain rate” curve at a given test temperature can be used to evaluate the original mechanical property. The higher the strain rate is, the closer the property on the curve is to the original property. Therefore, to determine the original mechanical property of the tested metal, a sufficiently high strain rate is required. The curve can also characterize the property variation of the tested metal in service with the service time. In addition, the property characterized by a point on the curve can represent the property of the tested metal when processing-deformed with the corresponding strain rate. As an example of the application of the new technology system, the property of high-entropy alloys is represented with a curve. The results show that the new technology system could change the conceptual framework and testing technology system of metallic mechanics.

A Comparison of Strain Measurements on an Inertia Friction Weld Using the ENGIN-X and SALSA Neutron Strain Mapping Instruments

2006 ◽  
Vol 524-525 ◽  
pp. 393-398 ◽  
Author(s):  
M. Karadge ◽  
Benedict M.B. Grant ◽  
Giovanni Bruno ◽  
Javier R. Santisteban ◽  
Philip J. Withers ◽  
...  
Keyword(s):  
Weld Line ◽  
Nickel Superalloy ◽  
Rietveld Analysis ◽  
Medium Size ◽  
Strain Mapping ◽  
Strain Measurements ◽  
Neutron Spallation Source ◽  
Spallation Source ◽  
Friction Weld ◽  
Inertia Friction Weld

In this study we present a direct comparison between residual strain measurements carried out on the same inertia friction weld using ENGIN-X at ISIS, UK and the new strain scanner SALSA at ILL, France. ENGIN-X is a time of flight (TOF) instrument, which receives neutrons from a neutron spallation source, while the SALSA Strain-Imager, a high resolution diffractometer, is based at a research reactor source with a continuous neutron flux and is operated with a constant wavelength. The purpose of this study was to demonstrate a confidence in crosscomparing future strain measurements to be performed at ENGIN-X and SALSA. Measurements were carried out on medium size inertia friction welded nickel superalloy test-piece, which show no significant crystallographic texture across the weld line. The results demonstrate that, even though residual stresses determined on SALSA only rely on a single peak analysis (in this case the (111) reflection), the results show excellent agreement with the measurements carried out on ENGIN-X, where strain is determined from multi-peak Rietveld analysis.

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