附图为Ti-Al二元合金相图: 8)请剖析并区分写出1285℃、1125℃和665℃三个恒温转变的类型和反响式,以及882℃时发作两相恒温转变的类型和反响式。 9)请绘出w=31%合金平衡结晶的冷却曲线,并注明各阶段的主要相变反响。 10)请剖析500℃时,w=31%的合金平衡结晶的相组成物和组织组成物,并计算其质量分数。
附图为Ti-Al二元合金相图: 8)请分析并别离写出1285℃、1125℃和665℃三个恒温转变的类型和反映式,和882℃时发生两相恒温转变的类型和反映式。 9)请绘出w=31%合金平稳结晶的冷却曲线,并注明各时期的要紧相变反映。 10)请分析500℃时,w=31%的合金平稳结晶的相组成物和组织组成物,并计算其质量分数。
Ti-Al二元合金相图如图所示。 1.分别写出图中1285℃、1125℃、665℃三个温度时所发生的三相恒温转变的名称及反应式,以及882℃时所发生的两相恒温转变的名称及反应式。 2.分析Al质量分数wAl=30%的合金的平衡结晶过程,写出500℃时的相组成物及组织组成物,并计算它们的质量分数。
Ti-Al相图 一、钛的基本性质与合金化 ①有同素异构转变。α，hcp|882℃|β，bcc②比强度高。3，可保持到550～600℃③耐蚀性好。形成保护膜,耐海水腐蚀性是最好的 ④低温性能好。在77K下仍有良好的力学性能 ⑤导热系数低。比铁低4.5倍，易产生热应力主要合金元素有A1、Zr、V、Mo、Mn、Cr等 另补加少量...
: . JPEDAV (2006) 27:255-277 ve character unless further the Al-Ti system, the present assessment also makes exten-experimental data are added.”) This referred to the already sive reference to it. The original phase diagr
合金等温截面tiaiphaseregions杨志尚 广西大学硕士学位论文Ti-Al-Pr三元系合金相图500℃等温截面姓名:***学位级别:硕士专业:材料物理与化学指导教师:**营19990501Ti.A1.Pr三元系合金相圈500℃等温截面摘要本文采用X射线衍射、垒塑坌堑.、差热分析等方法,对Ti—A1.Pr三元系合金相图500℃等温截面进行了研究。实验...
Al-Ti二元合金相图.pdf,JPEDAV (2006) 27:255-277 Basic and Applied Research: Section I DOI: 10.1361/154770306X109809 1547-7037/$19.00 ©ASM International Reassessment of the Binary Aluminum-Titanium Phase Diagram Julius C. Schuster and Martin Palm (Submi
which account for the reported data, but such dia-grams would have a speculative character unless furtherexperimental data are added.”) This referred to the alreadyobserved fact that because of a considerable interest in in-termetallic materials based on titanium aluminides, the Al-Ti system has...
“Onecaneasilyconstructphasedia-grams,whichaccountforthereporteddata,butsuchdia-gramswouldhaveaspeculativecharacterunlessfurtherexperimentaldataareadded.”)Thisreferredtothealreadyobservedfactthatbecauseofaconsiderableinterestinin-termetallicmaterialsbasedontitaniumaluminides,theAl-Tisystemhasbeenstudiedveryfrequently,but...
“Onecaneasilyconstructphasedia-grams,whichaccountforthereporteddata,butsuchdia-gramswouldhaveaspeculativecharacterunlessfurtherexperimentaldataareadded.”)Thisreferredtothealreadyobservedfactthatbecauseofaconsiderableinterestinin-termetallicmaterialsbasedontitaniumaluminides,theAl-Tisystemhasbeenstudiedveryfrequently,but...