Microstructural evolution analysis of grains and tensile properties of tin bronze in hot extrusion at different temperatures. (2nd January 2019)

• Record Type: Journal Article
• Authors: Hui, Jun; Feng, ZaiXin; Wang, Pengfei; Fan, Wenxin; Liu, Zhuang
• Is Part Of: Materials at high temperatures. Volume 36:Number 1(2019)
• Page Start: 68
• Page End: 75
• Publication Date: 2019-01-02
• Subjects: Tin bronze -- recrystallise -- twins -- plasticity; Materials at high temperatures -- Periodicals; High temperatures -- Periodicals; 620.1121705
• DOI: 10.1080/09603409.2018.1457603
• Languages: English
• ISSNs: 0960-3409

Abstract

Abstract: In this paper, Electron Back-Scattered Diffraction is adopted to analyze the tin bronze microstructural changes of grains and grain boundaries in hot extrusion from 620 to 720°C. The result shows that the size of grains grows as the temperature rises with a competitive status between recrystallisation and subgrains and deformed grains, and shows a random distribution with no obvious preferred orientation in structure. High angle grain boundaries (>30°) are most common with a large quantity of Σ3 boundaries at 60°. Twin grains firstly appear in recrystallisation and grow continuously at subgrains. In the tensile test, re-crystallised grains had certain influence on the plasticity of tin bronze. Along with the elongation of tin bronze at temperatures above 700°C, its plasticity also declined.