Nd2O3对NbCr2/Nb合金组织及性能的影响

Special Casting & Nonferrous Alloys(2021)

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Abstract
采用机械合金化+热压制备了不同Nd2O3摩尔分数的NbCr2/Nb两相合金,研究了Nd2O3含量对合金组织及性能的影响.结果 表明,Nd2O3的添加对合金的物相影响不明显;适量Nd2O3可有效改善合金的室温塑性、韧性,并提高其室温压缩强度,但当Nd2O3含量超过0.125%时,合金的室温性能下降,Nd2O3含量为0.125%的合金室温压缩强度和塑性分别为3 193 MPa和13.0%,相较于未添加Nd2O3的NbCr22.5合金提高了15.9%和137.2%.
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