ABNORMAL PLASTIC BEHAVIOR OF FINE GRAIN MP35N ALLOY DURING ROOM TEMPERATURE TENSILE TESTING

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ASGARI SIROUS

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Journal Paper

Paper Information

Journal: International Journal of Engineering Year:2003 | Volume:16 | Issue:2 (TRANSACTIONS B: APPLICATIONS) Page(s): 163-170

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Title

ABNORMAL PLASTIC BEHAVIOR OF FINE GRAIN MP35N ALLOY DURING ROOM TEMPERATURE TENSILE TESTING

Author(s)

ASGARI SIROUS | Issue Writer Certificate

Keywords

STRAIN HARDENING

LOW SFE

MP35N

DEFORMATION TWINNING

Abstract

In this paper, results of an investigation on the STRAIN HARDENING responses of ‎superalloy MP35N with two average grain sizes of 38 and 1 m#m, during room ‎temperature tensile testing are reported. The micro structural evolution of the ‎deformed samples was studied using optical and transmission electron microscopy ‎‎(TEM) techniques. The STRAIN HARDENING behavior of the 38 m#m material was rather ‎similar to that previously reported for low stacking fault energy FCC alloys. The ‎plastic behavior of the fine-grained material, however, was unexpected. In the strain ‎range of 0.1-0.4, the work hardening rate of the fine grain size sample was evidently ‎lower than that of the large grain size material. Based on the TEM results obtained in ‎this study, it is suggested that the unusual STRAIN HARDENING response of MP35N alloy ‎of 1m#m grain size is related to the difficulty of formation of deformation twins in ‎these samples. Results obtained in this study further support the effectiveness of ‎deformation twins in hindering crystallographic slip in LOW SFE FCC polycrystals and ‎the need to develop new plasticity models to include the role of DEFORMATION TWINNING ‎in these materials‏.‏

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APA: Copy

ASGARI, SIROUS. (2003). ABNORMAL PLASTIC BEHAVIOR OF FINE GRAIN MP35N ALLOY DURING ROOM TEMPERATURE TENSILE TESTING. INTERNATIONAL JOURNAL OF ENGINEERING, 16(2 (TRANSACTIONS B: APPLICATIONS)), 163-170. SID. https://sid.ir/paper/355278/en

Vancouver: Copy

ASGARI SIROUS. ABNORMAL PLASTIC BEHAVIOR OF FINE GRAIN MP35N ALLOY DURING ROOM TEMPERATURE TENSILE TESTING. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2003;16(2 (TRANSACTIONS B: APPLICATIONS)):163-170. Available from: https://sid.ir/paper/355278/en

IEEE: Copy

SIROUS ASGARI, “ABNORMAL PLASTIC BEHAVIOR OF FINE GRAIN MP35N ALLOY DURING ROOM TEMPERATURE TENSILE TESTING,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 16, no. 2 (TRANSACTIONS B: APPLICATIONS), pp. 163–170, 2003, [Online]. Available: https://sid.ir/paper/355278/en

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