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Ta-10W合金压缩力学性能实验研究

DOI: 10.11858/gywlxb.2010.01.009, PP. 49-54

Keywords: Ta-W合金,力学性能,应变率,压缩实验

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Abstract:

利用MTS材料试验机和分离式Hopkinson压杆(SHPB)实验装置对非退火状态Ta-10W合金进行了准静态和动态压缩实验,给出了材料的静态压缩屈服强度和应变率在700~3100s-1范围内的动态压缩应力-应变曲线,并获得了不同应变率下材料的动态屈服强度。通过对实验结果的分析可以发现,非退火状态Ta-10W合金具有较好的韧性,在所进行的实验中试件表面均未出现可见裂纹;试件材料具有较高的静、动态屈服强度,静态屈服强度达到930MPa,动态屈服强度在1GPa以上,在所进行的700~3100s-1应变率范围内,材料的动态屈服强度随应变率的增加略有提高。

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