Ti-55鈦合金超塑性板材的顯微組織與力學(xué)性能
發(fā)布人：上海艾荔艾金屬材料有限公司bt990.com.cn
更新時(shí)間：2016-01-04
將二次真空自耗熔煉的Ti-55鈦合金鑄錠軋制成1.2 mm厚的薄板，研究Ti-55鈦合金超塑性板材的顯微組織與力學(xué)性能。
Ti-55鈦合金超塑性板材的顯微組織與力學(xué)性能Microstructure and properties of superplastic plate of Ti-55 alloy將二次真空自耗熔煉的Ti-55鈦合金鑄錠軋制成1.2 mm厚的薄板，研究Ti-55鈦合金超塑性板材的顯微組織與力學(xué)性能。結(jié)果表明，顯微組織均勻，晶粒極細(xì)的Ti-55鈦合金超塑性板材, 具有良好的室溫拉伸性能和超塑性能。超塑性拉伸試驗(yàn)表明，在一定的變形溫度范圍(880~920 ℃)與變形速率(1.4×10?3?s?1)下，Ti-55鈦合金板材超塑性伸長率可達(dá)到700%以上。
The 1.2 mm thick plates of Ti-55 alloy were rolled from ingots melted by twice vacuum arc furnaces. Microstructure and properties of superplastic plate of Ti-55 alloy were studied. The results show that very fine crystalline grain and good room temperature tensile property have obtained through improved rolling processing.? With this processing, a total elongation above 700% could be obtained at 880?920 ℃ at strain rate of 1.4×10?3?s?1.
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