On the deformation characteristics of solution treated Cu-Ti alloys

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00381-5· OSTI ID:116074

Nagarjuna, S; Srinivas, M ^[1]; Balasubramanian, K ^[2]; Sarma, D S ^[3]

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1. Defence Metallurgical Research Lab., Hyderabad (India)
2. Nonferrous Materials Technology Development Centre, Hyderabad (India)
3. Banaras Hindu Univ., Varanasi (India). Dept. of Metallurgical Engineering

The aim of the present work is to study the deformation characteristics of four Cu-Ti alloys. This paper presents results on true stress-strain relationship, variation of strain hardening exponent(n) with Ti content, and the Transmission Electron Microscopy (TEM) microstructures of interrupted tensile test specimens, revealing the two kinds of deformation in these alloys. From the studies on deformation behavior in solution treated Cu-Ti alloys, it is concluded that: (1) flow stress increases with decreasing grain size and increasing Ti content; (2) strain hardening exponent, n, is independent of grain size, but decreases with increasing Ti content; (3) Cu-1.5 Ti and Cu-2.7 Ti alloys deform by slip, whereas Cu-4.5 Ti and Cu-5.4 Ti alloys exhibiting modulations and fine scale precipitation respectively, deform predominantly by twinning.

• OSTI ID: 116074
• Journal Information: Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 9 Vol. 33; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHEMICAL COMPOSITION
COPPER BASE ALLOYS
FLOW STRESS
GRAIN SIZE
MICROSTRUCTURE
PRECIPITATION
SLIP
STRAIN HARDENING
TENSILE PROPERTIES
TITANIUM ALLOYS
TRANSMISSION ELECTRON MICROSCOPY
TWINNING