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According to the composition of titanium alloy phase can be divided into three categories
| Update:2011-12-8 |
According to the composition of titanium alloy phase can be divided into three categories: ¦Á alloy, (¦Á ¦Â) alloys and ¦Â alloys, the Chinese were to TA, TC, TB said.
1, (¦Á ¦Â) alloys containing a certain amount of stability of ¦Á-and ¦Â-phase elements, equilibrium alloy of ¦Á and ¦Â phases. (¦Á ¦Â) alloys have moderate strength, and heat strengthened, but the welding performance is poor. (¦Á ¦Â) alloys are widely used, in which Ti-6Al-4V titanium alloy in production in more than half full.
2, ¦Á alloys containing a certain amount of stability of ¦Á-elements, mainly by the equilibrium ¦Á phase. small proportion of ¦Á alloy, hot and strong, good, good weldability and excellent corrosion resistance, the disadvantage is the low temperature strength, usually used as a heat-resistant materials and corrosion resistant materials. ¦Á alloys generally can be divided into full-¦Á alloy (TA7), near ¦Á alloy (Ti-8Al-1Mo-1V) and a small amount of compounds of the ¦Á alloy (Ti-2.5Cu
3, ¦Â ¦Â-phase alloys containing a large number of stable elements, high-temperature ¦Â phase can be fully retained to room temperature. ¦Â alloys generally can be divided into ¦Â alloys can be heat treated (metastable ¦Â alloys and nearly metastable ¦Â alloys) and thermal stability of ¦Â alloys. ¦¢ can be heat-treated alloy quenched state has excellent ductility and tensile strength through aging to reach 130 ~ 140kgf/mm2. ¦Â alloy materials commonly used for high strength and toughness. Than the major drawback is high cost, poor performance welding, cutting difficult.
Heat-resistant titanium alloys can be divided according to purpose, high-strength alloy, corrosion resistant alloys (titanium - molybdenum, titanium - palladium alloys, etc.), low-temperature alloys and special features alloy (titanium - iron hydrogen storage materials and Ti - Ni shape memory alloys) . Typical alloy composition and performance table.
Heat-treated titanium alloy heat treatment process can be obtained by adjusting the phase of different composition and organization. Generally believed that the fine equiaxed organization has good plasticity, thermal stability and fatigue strength; needle-like tissue has a high rupture strength, creep strength and fracture toughness; equiaxed and needle-like hybrid organization has a better overall performance.According to the composition of titanium alloy phase can be divided into three categories: ¦Á alloy, (¦Á ¦Â) alloys and ¦Â alloys, the Chinese were to TA, TC, TB said.
1, (¦Á ¦Â) alloys containing a certain amount of stability of ¦Á-and ¦Â-phase elements, equilibrium alloy of ¦Á and ¦Â phases. (¦Á ¦Â) alloys have moderate strength, and heat strengthened, but the welding performance is poor. (¦Á ¦Â) alloys are widely used, in which Ti-6Al-4V titanium alloy in production in more than half full.
2, ¦Á alloys containing a certain amount of stability of ¦Á-elements, mainly by the equilibrium ¦Á phase. small proportion of ¦Á alloy, hot and strong, good, good weldability and excellent corrosion resistance, the disadvantage is the low temperature strength, usually used as a heat-resistant materials and corrosion resistant materials. ¦Á alloys generally can be divided into full-¦Á alloy (TA7), near ¦Á alloy (Ti-8Al-1Mo-1V) and a small amount of compounds of the ¦Á alloy (Ti-2.5Cu
3, ¦Â ¦Â-phase alloys containing a large number of stable elements, high-temperature ¦Â phase can be fully retained to room temperature. ¦Â alloys generally can be divided into ¦Â alloys can be heat treated (metastable ¦Â alloys and nearly metastable ¦Â alloys) and thermal stability of ¦Â alloys. ¦¢ can be heat-treated alloy quenched state has excellent ductility and tensile strength through aging to reach 130 ~ 140kgf/mm2. ¦Â alloy materials commonly used for high strength and toughness. Than the major drawback is high cost, poor performance welding, cutting difficult.
Heat-resistant titanium alloys can be divided according to purpose, high-strength alloy, corrosion resistant alloys (titanium - molybdenum, titanium - palladium alloys, etc.), low-temperature alloys and special features alloy (titanium - iron hydrogen storage materials and Ti - Ni shape memory alloys) . Typical alloy composition and performance table.
Heat-treated titanium alloy heat treatment process can be obtained by adjusting the phase of different composition and organization. Generally believed that the fine equiaxed organization has good plasticity, thermal stability and fatigue strength; needle-like tissue has a high rupture strength, creep strength and fracture toughness; equiaxed and needle-like hybrid organization has a better overall performance.
Ningbo Intelligent Stainless Steel Co.,Ltd. http://www.cn-steelpipe.net/stainless-steel-news/2011128222637.html
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