Cyclic Stress Strain Behaviour of High-Melting Point Metals

Kong, Sih Ying; Weiß, B.; Stickler, R.; Witwer, M.; Hödl, Hans Gerald

doi:10.1515/htmp.1994.13.1.61

Cited by 3 publications

(2 citation statements)

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“…u. Werkstofftech. 26, 483-487(1995) (7) A considerable creep strain in the order of 1% can be achieved in spite of the temperatures near 0.1 T, and for stresses well below the lower yield stress. The magnitude of the creep strain depend o n the stress level, temperatures in the rangebetween 30 and 100 "C affect only the creep rate.…”

Section: Discussionmentioning

confidence: 99%

“…Most of the tests, however, were performed under conditions "of high plastic strain rates typical for conventional fatigue tests" [ l , 61. In recent years increased interest in the high-tech application of refractory metals and alloys has stimulated * Institute of Metals Research, Academia Sinica, Shenyang, + Metallwerk Plansee GmbH, 6600 Reutte, Austria PRC investigations on the fundamental mechanisms of their mechanical behavior, in particular, their fatigue response over a wide temperature range. In a previous publication [7] initial results of the cyclic stress strain response of pure Ta and Mo under load controlled testing were reported. Room temperature (25 "C) S-N data for this material have been published indicating a considerable effect of test frequency on fatigue life and the plastic strain range.…”

Section: Introductionmentioning

confidence: 99%

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Low cycle fatigue and creep behavior of recrystallized Molybdenum near room termperature

Sun¹,

Wang

Hödl

et al. 1995

Materialwissenschaft Werkst

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The deformation behavior of pure recrystallized molybdenum under cyclic and static loads was invcstigated in the temperature range between 30°C and 10O"C, for stress amplitudes between 100 MPa and 250 MPa and for static loads up to 200 MPa. The results show that in spite of the low test temperatures and stress levels the Mo material exhibits considerable plastic strains which depend sensitively on frcquencyhme and small changes in temperature.The activation energy deduced for the static and dynamic deformation is less than 0.98 eV which indicates thermally activated processes, to be explained by a dislocation kink model as described in the literature. The low-temperature fatigue behavior appears strongly influenced by creep-fatigue interaction phenomena.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Low cycle fatigue and creep behavior of recrystallized Molybdenum near room termperature

Sun¹,

Wang

Hödl

et al. 1995

Materialwissenschaft Werkst

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Metals

Goodwin

Guruswamy

Kainer³

et al.

Springer Handbook of Condensed Matter and Materials Data

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hereas the fundamental properties of all metallic elements are covered systematically and comprehensively in Chapt. 2.1, this section chapter treats those metals that are applied as base and alloying elements of metallic materials. According to common usage, the section is subdivided into treatments of metallic materials based on a single elements (Mg, Al, Ti, Zr, Fe, Co, Ni, Cu, Pb), and treatments of groups of metals with common dominating features (refractory metals, noble metals). The term metal is used indiscriminately for pure metals and for multicomponent metallic materials, i. e., alloys.The properties of metallic materials depend sensitively not only on their chemical composition and on the electronic and crystal structure of the phases formed, but also to a large degree on their microstructure including the kind and distribution of lattice defects. The phase composition and microstructure of metallic materials are strongly dependent, in turn, on the thermal and mechanical treatments, which are applied under well-controlled conditions to achieve the desired properties. Accordingly, the production of metallic semifinished products and final parts on one hand, and the properties in the final state on the other hand, are usually intricately linked. This also applies to metallic materials treated in other chapters (Chapt. 4.2 on superconductors and Chapt. 4.3 on magnetic materials), as well as to the majority of other inorganic and organic materials.According to the complexity of the interrelations between fundamental (intrinsic) and microstructure-dependent (extrinsic) properties of metallic materials, this section provides a substantial amount of explanatory text. By the same token, the data given are mostly typical examples indicating characteristic ranges of properties achievable rather than providing complete listings. More comprehensive databases are indicated by way of reference.

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Low cycle fatigue behaviors of pure Mo and Mo-La2O3 alloys

Cheng

Zhang

et al. 2017

Materials Science and Engineering: A

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Cyclic Stress Strain Behaviour of High-Melting Point Metals

Cited by 3 publications

References 2 publications

Low cycle fatigue and creep behavior of recrystallized Molybdenum near room termperature

Low cycle fatigue and creep behavior of recrystallized Molybdenum near room termperature

Metals

Low cycle fatigue behaviors of pure Mo and Mo-La2O3 alloys

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