scholarly journals Inverse creep and inverse relaxation

1995 ◽  
Vol 57 (5) ◽  
pp. 653-653
Author(s):  
Anthony P. Pierlot
Keyword(s):  
Inverse Creep

CREEP AND INVERSE CREEP BEHAVIOR OF SILK YARNS

2001 ◽  
Vol 40 (2) ◽  
pp. 133-145 ◽  
Author(s):  
J. Mohan ◽  
V. B. Gupta ◽  
V. K. Kothari
Keyword(s):  
Creep Behavior ◽  
Inverse Creep

An Investigation of the Creep of Ni3Al(B, Hf) Single Crystals at Intermediate Temperatures

1988 ◽  
Vol 133 ◽  
Author(s):  
K. J. Hemker ◽  
W. D. Nix
Keyword(s):  
Creep Deformation ◽  
Temperature Drop ◽  
Primary Creep ◽  
Constant Stress ◽  
Octahedral Plane ◽  
Creep Tests ◽  
Creep Properties ◽  
Yielding Behavior ◽  
Octahedral Slip ◽  
Inverse Creep

ABSTRACTThis study was undertaken to characterize the intermediate temperature creep properties of Ni3Al. Itfocuses on the mechanisms controlling creep deformation and their relationship to the anomalous yielding behavior of this alloy. Constant stress creep tests were conducted for temperatures between 713–973 K, and the following observations were made. The creep curves exhibited two distinct regions. Primary creep was followed by inverse creep. Specimens cooled under constant stress strained an additional 20% during cooling. Temperature drop experiments indicate that Ni3Al is weakened by the addition of creep deformation.Glide on the primary octahedral plane appears to be exhausted during primary creep. Slip trace and TEM studies indicate that inverse creep is controlled by slip on the cube cross slip plane and a secondary octahedral plane. Primary octahedral slip is observed in the specimens that are cooled and deformed under constant stress.

Inverse creep in Ni3Al

1989 ◽  
Vol 23 (11) ◽  
pp. 1887-1891 ◽  
Author(s):  
P.M. Hazzledine ◽  
J.H. Schneibel
Keyword(s):  
Inverse Creep

Creep of Anomalous Ni3Ga

1996 ◽  
Vol 460 ◽  
Author(s):  
M J Lunt ◽  
Y Q Sun
Keyword(s):  
Yield Stress ◽  
Creep Strength ◽  
Rapid Decrease ◽  
Steady State Creep ◽  
Intermetallic Alloys ◽  
Creep Tests ◽  
Screw Dislocations ◽  
Cube Plane ◽  
Ordered Intermetallic ◽  
Inverse Creep

ABSTRACTNi3Ga is among a number of LI2 ordered intermetallic alloys whose yield stress increases with temperature. In this work we have examined the creep strength of [123] and [001] oriented Ni3Ga specimens in the temperature regime of the yield stress anomaly and confirmed that the creep strength shows the normal rapid decrease with temperature. Inverse creep occurs in the [001] specimens where slip is on the {111} planes only. [123] specimens exhibit steady-state creep and slip line and TEM observations have shown slip on the cube plane and dislocations of both <110> and <100> Burgers vectors are present. We have carried out creep tests of prestrained [123] samples and demonstrated that the storage of primary <110> {111} screw dislocations, locked in the Kear-Wilsdorf configuration, has no effect on creep.

scholarly journals Occurrence of Inverse Creeps in Nylon Multifilament Yarns

2019 ◽  
pp. 119-124
Author(s):  
Pratap G. Patil
Keyword(s):  
Embedded System ◽  
Personal Computer ◽  
Textile Materials ◽  
Fundamental Properties ◽  
Electronic Timer ◽  
Receiver Unit ◽  
Multifilament Yarns ◽  
Set Up ◽  
Paper Abstract ◽  
Inverse Creep

Creep and Inverse creep are the important fundamental properties of textile materials. These properties determine the relaxation behavior of the product. We have designed and fabricated an instrument which can measure the creep and inverse creep. The instrument consists of a Trans - Receiver unit interfaced with Embedded System along with the Personal Computer. Existing technique for measuring inverse creep does not measure the instantaneous extension or contraction. The newly fabricated instrument, can measure the instantaneous extension and contraction of the yarn of an accuracy of 0.02%. This can be measured after every 500 µs. The position of the yarn, which is to be hanged, is vertical. The ‘Electronic Timer Unit’, replaces a meter scale. Set up is improved by using electronic utilities. The capability is enhanced to next level of time and distance resolutions. Automation enables to have flexibility of time from microseconds to minutes. Data is stored in different text files. Different samples of Nylon multifilament yarn were used in the experiment. The length and the load were altered. Change in stress lead to instantaneous extension or contraction followed by creep or inverse creep. This can sensed by the sensor and further stored in the memory of the Computer. The percentage creep and inverse creep were measured and have been reported in this present paper. Your paper should be in the same format as this file. The abstract goes here. Your abstract should be a maximum of 200 words here clearly outlining the contribution of your paper. Abstract is in italic fonts.

Deformation of Chemically Crosslinked Polyethylene Foam. 1. Thermal Deformation of Polyethylene Foam

2014 ◽  
Vol 41 (10) ◽  
pp. 39-44
Author(s):  
A.G. Dement'ev ◽  
G.N. Matyukhina ◽  
A.V. Pankratov
Keyword(s):  
Cellular Structure ◽  
Thermal Deformation ◽  
Force Effect ◽  
Inverse Creep

An investigation was made of the influence of the cellular structure on the coefficient of linear thermal deformation and inverse creep of chemically crosslinked polyethylene foam PPE-3M. The dependence of deformability on the nature of the force effect and on the temperature when exposed to the force effect at the stage of production of chemically crosslinked polyethylene foam was established.

scholarly journals Inverse creep

1994 ◽  
Vol 53 (8) ◽  
pp. 1123-1124 ◽  
Author(s):  
R. P. Nachane
Keyword(s):  
Inverse Creep
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