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4 edition of Temperature and strain-rate effects on low-cycle fatigue behavior of alloy 800H found in the catalog.

Temperature and strain-rate effects on low-cycle fatigue behavior of alloy 800H

Temperature and strain-rate effects on low-cycle fatigue behavior of alloy 800H

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C, Springfield, Va .
Written in English


Edition Notes

Other titlesTemperature and strain rate effects on low cycle fatigue behavior of alloy 800H.
StatementK. Bhanu Sankara Rao ... [et al.].
SeriesNASA-TM -- 112753., NASA technical memorandum -- 112753.
ContributionsRao, K. Bhanu Sankara., United States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL17592988M
OCLC/WorldCa41066648

Abstract: The low cycle fatigue(LCF) properties of as-extruded AZ31 Mg alloy were investigated under total strain amplitudes in the range of %−% with strain rate of 1×10−2 s−1. Due to the twinning effect in compression during loading and the detwinning effect during unloading, the alloy showed an asymmetric hysteresis loop. In this paper, a high-temperature low-cycle fatigue life prediction model, based on the total strain energy density method, was established. Considering the influence of the Masing and non-Masing behavior of materials on life prediction, a new life prediction model was obtained by modifying the existing prediction model. With an H alloy of the heat transfer tube of a steam generator as the Author: Wei Zhang, Tao Jiang, Liqiang Liu.

  Continuous cycle fatigue and creep-fatigue testing of Alloy was conducted at °C and % and % total strain in air to simulate damage modes expected in a VHTR application. Continuous cycle fatigue specimens exhibited transgranular by: In this investigation, high-temperature, low-cycle fatigue and crack growth tests using a range of cyclic periods ranging from one second to five hours, as well as stress relaxation experiments were conducted to determine the influence of testing temperature and hold time on the low-cycle fatigue behavior of HAYNES alloy.

The effects of strain rate (4 {times} 10{sup {minus}6} to 4 {times} 10{sup {minus}3} s{sup {minus}1}) and temperature on the low-cycle fatigue (LCF) behavior of alloy H have been evaluated in the range C to C. Total axial strain controlled LCF tests were . This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation.


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Temperature and strain-rate effects on low-cycle fatigue behavior of alloy 800H Download PDF EPUB FB2

The effects of strain rate (4 × to 4 × s-1) and temperature on the low-cycle fatigue (LCF) behavior of alloy H have been evaluated in the range ° to °.

Total axial strain controlled LCF tests were conducted in air at a strain amplitude of ± pct. Low-cycle fatigue life decreased with decreasing strain rate and increasing by: The effects of strain rate (4 × to 4 × 10 -3 S -1) and temperature on the low-cycle fatigue (LCF) behavior of alloy H have been evaluated in the range °C to °C.

Total axial strainFile Size: 2MB. The effects of strain rate (4 x 10(exp -6) to 4 x 10(exp -3)/s) and temperature on the Low-Cycle Fatigue (LCF) behavior of alloy H have been evaluated in the range C to C.

Total axial. And also, creep-fatigue experiments were carried out at °C employing % total strain range and 10 −3 /s strain rate using trapezoidal waveform with tension hold time.

The main focus is to characterize the low-cycle fatigue properties for Alloy H weldment specimens from the cyclic deformation behavior and fatigue fracture : Seon-Jin Kim, Rando Tungga Dewa, Woo-Gon Kim, Eung-Seon Kim. Low-cycle fatigue tests have been carried out on Alloy H in the temperature range 22– °C with either diametral strain measurement with conversion to axial strain or direct axial strain measurement.

The axial strain was cycled between equal positive and negative values in the range of 2–%.Cited by: A gradient nanocrystallined (NC) surface layer was generated on AZ31b magnesium alloy by means of surface mechanical attrition treatment (SMAT).

The effects of strain rate and ball size on low cycle fatigue behavior of the SMATed samples were studied under strain-controlled by: The low-cycle fatigue (LCF) behavior of a nickel-based single crystal superalloy with [] orientation was studied at an intermediate temperature of T 0 °C and a higher temperature of T 0 + °C under a constant low strain rate of 10 −3 s −1 in ambient atmosphere.

The superalloy exhibited cyclic tension-compression asymmetry which is dependent on the temperature and applied strain by: Effect of temperature and strain rate on LCF behavior Effect of temperature and strain rate on the cyclic stress response curves are shown in Fig.

2 (a) and (b) respectively. The weld joint generally exhibited a very rapid strain hardening to a maximum stress followed by a nearly stable peak by: 9.

Low-cycle fatigue behavior of the HAYNES HR alloy in the temperature range from 24°C to °C and total strain range from % to % was investigated under an axial total strain control mode in laboratory air.

It was noted that increasing temperature generally led to a substantial decrease in the fatigue life of the by: metals Article Understanding Low Cycle Fatigue Behavior of Alloy Base Metal and Weldments at C Rando Tungga Dewa 1, Seon Jin Kim 1,*, Woo Gon Kim 2 and Eung Seon Kim 2 1 Department of Mechanical Design Engineering, Pukyong National University, BusanKorea; @ 2 Korea Atomic Energy Research Institute (KAERI), DaejeonKorea.

The effects of strain rate (4 x 10(exp -6) to 4 x 10(exp -3)/s) and temperature on the Low-Cycle Fatigue (LCF) behavior of alloy H have been evaluated in the range C to C.

Total axial strain controlled LCF tests were conducted in air at a strain amplitude of +/- pct. LCF life decreased with decreasing strain rate and increasing temperature. Schiffers's 3 research works with citations and 92 reads, including: Temperature and Strain-Rate Effects on Low-Cycle Fatigue Behavior of Alloy H.

Abstract: The aim of this study is to investigate the fully-reversed low cycle fatigue properties of Alloy in the air at C; these tests were conducted at total strain ranges from % to % with a constant strain rate of 10 3/s.

The result of the fatigue tests showed a decrease in fatigue resistance with an increasing total strain range.

The effect of aging and cold working on the high-temperature low-cycle fatigue behavior of alloy H: Part I. The effect of hardening processes on the initial stress-strain curve.

Cited by: 2. PDF | In the present investigation, comparative evaluation of the low cycle fatigue (LCF) of tube and forged Alloy M have been studied. Total axial | Find, read and cite all the research you. Get this from a library. Temperature and strain-rate effects on low-cycle fatigue behavior of alloy H.

[K Bhanu Sankara Rao; United States. National Aeronautics and Space Administration.;]. Abstract. In the present investigation, comparative evaluation of the low cycle fatigue (LCF) of tube and forged Alloy M have been studied. Total axial strain controlled tests were performed on sub-sized specimens between and K employing strain amplitudes ranging from ± to ±1 % at a nominal strain rate of 3 × 10 −3 s − alloy underwent cyclic hardening at all Cited by: 2.

The individual and combined effects of cold working (5 and 10 pct) and aging ( and h in the temperature range to °C) on the high-temperature low-cycle fatigue behavior of alloy.

K. Bhanu Sankara Rao, H. Schiffers, H. Schuster and G. Halford, Temperature and strain-rate effects on low-cycle fatigue behavior of Alloy H, Metallurgical and Materials Transactions A, 27A () – Google ScholarCited by: 8.

temperature gradients which occur on heating and cooling during start-up and shut-down operations. Therefore, resis-tance to low-cycle fatigue (LCF) is an essential require-ment.

As a result, specific attention has been directed to the behavior of alloy H in recent years.t1 12]These investi-gations were conducted with the following objectives: (1).

The individual and combined effects of cold working (5 and 10 pct) and aging ( and h in the temperature range to °C) on the high-temperature low-cycle fatigue behavior of alloy H have been investigated.

The specimens were tested at the aging temperatures. Both the saturation stress range and the fatigue life were found to be history by: 6.Low cycle fatigue (LCF) behavior of solution annealed Alloy M forging is studied at, and K using strain amplitudes ±, ±, ± and ±% at a nominal strain rate of 3.The low‐cycle fatigue (LCF) behavior of 9Cr ferritic‐martensitic steel has been investigated over a range of controlled total strain amplitudes from to % at room temperature (RT).

The LCF properties of P92 steel at RT follow Coffin‐Manson relationship.