材料期刊网

超塑成形/扩散连接( SPF/DB)技术为钛合金在航空航天领域的应用打开了一条通道，该技术的发展也对所需的钛合金超塑板提出了更高的要求。介绍了国内外在TC4钛合金超塑板、新型钛合金低温超塑板和新型短时高温钛合金超塑板方面的研究进展。指出，我国经过三十多年的持续技术攻关和应用经验积累，钛合金超塑板的生产技术水平基本与国际先进水平同步，尤其是自主研发的特种轧制技术，能够有效控制钛合金超塑性板材的晶粒度和各向异性，保证后续SPF/DB工艺的需要。最后对我国钛材研发企业提出了几点建议，指出了未来钛合金超塑板研究的工作重点。

Superplastic forming and diffusion bonding ( SPF/DB) technology had opened a channel for the application of titanium alloy in the aerospace field, and the development of the technology also put forward higher requirements for the titanium alloy plate. In this paper, the research progress of TC4 titanium alloy superplastic plate, new type titanium alloy low temperature superplastic plate and new type of short time high temperature titanium alloy plastic plate were introduced. It is pointed out that over thirty years of continuous technical research and application experience, the production technology level of titanium alloy superplastic plate in China basically synchronized with the international advanced level, especially the special rolling technology. It could effectively control the grain size and the anisotropy of titanium alloy superplastic sheet, meet the requirements of the subsequent SPF/DB process.