The strain dependence of flow stress in an aged Cu-1.5wt% Ti alloy

Journal Article · Mon Jul 15 04:00:00 EDT 1996 · Scripta Materialia

DOI:https://doi.org/10.1016/1359-6462(96)00115-7· OSTI ID:276158

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

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

The flow stress-grain size relationship of a number of metals and alloys can be expressed by a modified Hall-Petch equation. The authors have recently established the Hall-Petch relationship for several Cu-Ti alloys (containing 1.5, 2.7, 4.5 and 5.4 wt% Ti), in the solution treated condition. The present investigation has been taken up to study the flow stress-grain size relationship in the peak aged Cu-1.5wt%Ti alloy and to confirm the earlier observation that precipitation rather than composition variation, is the cause for {sigma}{sub {omicron}{var_epsilon}} and hence {sigma}{sub {var_epsilon}}, the flow stress to vary with strain, i.e. {var_epsilon}{sup 3/2}.

• OSTI ID: 276158
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 2 Vol. 35; ISSN 1359-6462; ISSN XZ503X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AGING
CHEMICAL COMPOSITION
COPPER BASE ALLOYS
EQUATIONS
FLOW STRESS
GRAIN SIZE
PRECIPITATION
SOLID SOLUTIONS
STRAINS
TITANIUM ALLOYS