Internal friction associated with dislocation relaxations in virgin martensite; 2: Interpretation

Journal Article · Tue Mar 01 04:00:00 EST 1994 · Acta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-7151(94)90258-5· OSTI ID:5054435

Liu, Yong ^[1]

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1. Helsinki Univ. of Technology, Espoo (Finland). Lab. of Engineering Materials

Interpretations for the M2, M3, and M4 internal friction peaks observed during heating of virgin martensite from 82 to 350 K are presented. M4 and M3 peaks can be attributed to the generation of kink-pairs along non-screw dislocations, respectively, while M2 peak is related to the interaction between non-screw dislocations and interstitial carbon atoms. Activation energies and pre-exponential factors of relaxation time [tau][sub 0] are determined for each peak. Peierls stress of martensite is estimated.

• OSTI ID: 5054435
• Journal Information: Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 42:3; ISSN 0956-7151; ISSN AMATEB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
CARBON ADDITIONS
COMPUTERIZED SIMULATION
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
FRICTION
INTERNAL FRICTION
IRON ALLOYS
LINE DEFECTS
MARTENSITE
NUCLEATION
SIMULATION