Transactions of Materials and Heat Treatment

Title：Thermal protection characteristics of glass fiber lubricant in hot forming of titanium alloys

Authors： Liu Qing Wen Tong Ou Wenxue

Unit： Chongqing University

KeyWords： titanium alloys hot forming lubricant glass fiber thermal protection characteristics initial softening temperature

ClassificationCode：TG316

year,vol(issue):pagenumber：2016,41(9):106-110

Abstract：

Lubricant plays a decisive role in the hot forming process of titanium alloys. For its

defects of uneven insulation coating, narrow temperature range of protection and difficult to

use, thermal protection characteristics of glass fiber as a new lubricating and thermal

insulation material in the hot forming of titanium alloys were investigated. Based on the

process properties of hot forming for titanium alloys, the required protection performance of

the lubricant and related test methods were discussed. Furthermore, the key indexes of the

glass fiber characteristics including the initial softening temperature, oxidation protection,

insulation, specific heat and high temperature viscosity were tested, and its protective

effect was compared with the conventional glass suspension lubricant. Finally, the feasibility

of the glass fiber as a protective insulation lubricant for titanium alloy in hot forging was

discussed. The results illustrate that except the initial softening temperature needs to be

lowered, the glass fiber can meet requirements of lubricant properties for titanium alloys in

hot forming in terms of oxidation protection, heat preservation and transfer, and high

temperature viscosity.

Funds：

刘清（1990-），女，硕士温彤（1968-），男，博士，副教授

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