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多相Mo-Si-B合金材料的性质

The properties of multiphase Mo-Si-B alloy
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摘要 多相Mo-Si-B合金是非常具有吸引力的新型高温结构材料.它熔点高、抗氧化性、抗蠕变性和室温断裂韧性好.阐述了Mo-Si-B微观结构对多相Mo-Si-B合金性能的影响,举例说明了多相Mo-Si-B合金的抗氧化性及断裂韧性比钼或钼的硅化物有明显提高.指出了存在的问题和今后努力方向. Multiphase Mo-Si-B alloys are attractive materials for high temperature structural applications because of their high melting temperature, excellent strength, creep resistance and relatively good oxidation-resistant and fracture toughness at room temperature. Recent results about properties of multiphase Mo-Si-B alloy are reviewed, it is illustrated with examples that the oxidation-resistant and fracture toughness of Mo-Si-B alloys are much better than that of Mo or MoSi2. It is indicated that the properties of multiphase Mo-Si-B alloy could be varied with their intermetallic phases. The development of multiphase Mo-Si-B alloys are prospected.
作者 朱艳 杨双平 孙军
机构地区 西安交通大学金属材料强度国家重点实验室
出处 《西安工程科技学院学报》 CAS 2006年第2期215-218,238,共5页 Journal of Xi an University of Engineering Science and Technology
基金 国家自然科学基金资助项目(50371069) 陕西省教委专项科研基金资助项目(05JK213) 陕西省重点实验室基金资助项目(05JF21)
关键词 多相Mo-Si-B合金 微观组织组成相 抗氧化性 断裂韧性 multiphase Mo-Si-B alloys intermetallic phases oxidation-resistant fracture toughness
分类号 TG146.4 [金属学及工艺—金属材料]
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参考文献12

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西安工程科技学院学报
2006年 第2期

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