Effects of training temperature on the two way memory effect in a Cu-Zn-al alloy

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90135-X· OSTI ID:7278239

Zhang, Q A; Yin, F X; Wang, R X; Zhang, J X; Gu, N J ^[1]

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1. Hebei Inst. of Technology, Tianjin (China). Dept. of Metal Science and Technology

The applications of Cu-Zn-Al shape memory alloys are associated with the two way memory effect (TWME) in many cases, and thus have been thoroughly studied by many researchers. It was generally believed that the formation of preferential thermoelastic martensite is the origin for the TWME in Cu-Zn-Al alloys. In order to obtain stable forming paths for preferential martensite, samples should be subjected to a thermomechanical training. Presently, the TWME can be achieved by cycles of shape memory effect training or stress induced martensite (SIM) training, as well as a series of combined SIM and SME training. The procedures of combined SIM and SME training are the most effective to the induction of TWME in Cu-Zn-Al shape memory alloys. In the present investigation, the authors focused on the effects of the upper limit training temperature Tp on the reproducibility of the TWME, and as a result, the optimum Tp temperature for the TWME training was found in a Cu26Zn4Al shape memory alloy.

• OSTI ID: 7278239
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 31:5; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
ALUMINIUM ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DATA
DISLOCATIONS
EXPERIMENTAL DATA
FABRICATION
HEAT TREATMENTS
INFORMATION
LINE DEFECTS
MATERIALS WORKING
MICROSTRUCTURE
NUMERICAL DATA
PHASE TRANSFORMATIONS
SHAPE MEMORY EFFECT
TEMPERATURE DEPENDENCE
THERMOMECHANICAL TREATMENTS
ZINC ALLOYS