(上海交通大學(xué)金屬基復(fù)合材料國(guó)家重點(diǎn)實(shí)驗(yàn)室， 上海 200030
*上海鋼鐵研究所鈦合金分所,上海 200940)
摘 要: 根據(jù)熱力學(xué)理論編程計(jì)算了鈦與B4C反應(yīng)的反應(yīng)生成焓ΔH與Gibbs自由能ΔG以及反應(yīng)式(x+5)Ti+B4C=xTi+4TiB+TiC的絕熱溫度。計(jì)算結(jié)果表明：鈦與B4C反應(yīng)釋放出大量熱，反應(yīng)能自發(fā)維持，而過量鈦與B4C反應(yīng)更易生成TiB和TiC增強(qiáng)體。由于鈦?zhàn)鳛橄♂寗┪諢崃浚S著過剩鈦含量的增加，反應(yīng)的絕熱溫度逐漸下降，過剩鈦完全熔解的初始溫度逐漸升高
關(guān)鍵字: 生成焓 Gibbs自由能 鈦基復(fù)合材料
（State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University, Shanghai 200030, P. R. China
*Titanium Alloys Branch,Shanghai Iron and Steel Research Institute, Shanghai 200940, P. R. China）
Abstract:Reaction formation enthalpy ΔH, Gibbs free energy ΔG and adiabatic temperature of reaction between Ti and B4C were calculated using thermodynamic theory. The results showed that the reaction between Ti and B4C releases much heat, TiB and TiC reinforcer are favourable to synthesize by the reaction between excessive Ti and B4C, adiabatic temperature will decrease and initial temperature which excessive titanium is absolutely melted will increase with excessive titanium increasing.
Key words: formation enthalpy Gibbs free energy titanium matrix composites
