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| 不同退火温度对Mo-La2O3板材微观组织及力学性能的影响 | |
| 引用本文： | 王林,孙军,孙院军,张国君,李晶,卜春阳,付静波,刘仁智.不同退火温度对Mo-La2O3板材微观组织及力学性能的影响[J].中国钼业,2011,35(5):37-41. |
| 作者姓名： | 王林 孙军 孙院军 张国君 李晶 卜春阳 付静波 刘仁智 |
| 作者单位： | 1. 西安交通大学,陕西西安710049;金堆城钼业股份有限公司,陕西西安710077 2. 西安交通大学,陕西西安,710049 3. 金堆城钼业股份有限公司,陕西西安,710077 4. 西安理工大学,陕西西安,710048 |
| 摘 要： | 本文研究了不同退火温度对Mo-La2O3板材微观组织及力学性能的影响。通过金相显微镜、扫描电镜观察了钼合金显微组织及断口形貌,利用透射电镜研究了La2O3对位错分布的影响规律。结果表明,随着退火温度的升高,钼合金晶粒长大,拉伸性能、断裂韧性及显微硬度显著降低。对于退火后的试样,当La2O3粒径较大时,这种颗粒位于晶界处,在颗粒及晶界处形成位错塞积;在退火后的钼合金中,La2O3粒径较小时,绝大多数颗粒位于晶粒内部,位错越过这些颗粒,在晶界或亚晶界上形成位错塞积。 |
| 关 键 词： | 退火 Mo-La2O3板材 微观组织 力学性能 |
INFLUENCE OF ANNEALING TEMPERATURE ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Mo-La2O3 |
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| WANG Lin,SUN Jun,SUN Yuan-jun,ZHANG Guo-jun,LI Jing,BU Chun-yang,FU Jing-bo,LIU Ren-zhi.INFLUENCE OF ANNEALING TEMPERATURE ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Mo-La2O3[J].China Molybdenum Industry,2011,35(5):37-41. | |
| Authors: | WANG Lin SUN Jun SUN Yuan-jun ZHANG Guo-jun LI Jing BU Chun-yang FU Jing-bo LIU Ren-zhi |
| Affiliation: | WANG Lin1,2,SUN Jun1,SUN Yuan-jun2,ZHANG Guo-jun3,LI Jing2,BU Chun-yang2,FU Jing-bo2,LIU Ren-zhi2(1 Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China)(2 Jinduicheng Molybdenum Co.,Ltd.,Xi'an 710077,China)(3 Xi'an University of Technology,Xi'an 710048,China) |
| Abstract: | Influence of annealing temperature on microstructure and mechanical properties of Mo-La2O3 was investigated.Microstructure,fracture morphology of Mo alloys were observed respectively by optical microscope and SEM.Effect of La2 O3 on distribution of dislocation was investigated by TEM.The results indicate that grains grow up and tensile strength,fracture toughness and microhardness are decreased with increasing annealing temperature.Larger La2O3 particles at which quantities of dislocations pile up locate at... |
| Keywords: | annealing Mo-La2O3 alloy sheet microstructure mechanical properties |
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