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High Temperature Performance of Dispersion Strengthened Pt-3Rh Alloy
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High Temperature Performance of Dispersion Strengthened Pt-3Rh Alloy
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National Technology Support Project; Key Technology Development and Industrialization of Superfine E-glassfiber (2007BAE331301)

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    摘要:

    用粉末冶金-內(nèi)氧化-燒結(jié)方法制備ZrO2彌散強(qiáng)化Pt-3Rh合金并測(cè)試、分析其高溫性能。結(jié)果表明，Pt-3Rh合金被彌散強(qiáng)化以后，800 ℃以下的膨脹系數(shù)比Pt-3Rh大，800 ℃以上的膨脹系數(shù)比Pt-3Rh小；高溫抗拉強(qiáng)度和延伸率得到提高；高溫晶體結(jié)構(gòu)穩(wěn)定性增加；用其制備的拉絲漏板高溫使用壽命與Pt-10Rh合金漏板相當(dāng)。

    Abstract:

    ZrO2 dispersion-strengthened Pt-3Rh alloy was prepared by powder metallurgy-internal oxidation-sintering. The high temperature properties were tested and analyzed. After Pt-3Rh are dispersion strengthened, its coefficient of expansion is bigger than that of Pt-3Rh below 800 °C and smaller than that of Pt-3Rh above 800 °C. The thermal tensile strength and elongation are increased. The stability of crystal structure is strengthened. The service life of strengthened Pt-3Rh drawing bushings is equal to that of Pt-10Rh.

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蘇中華,彭曉東,謝衛(wèi)東,劉偉廷,楊宗倫. High Temperature Performance of Dispersion Strengthened Pt-3Rh Alloy[J].稀有金屬材料與工程,2012,41(3):402~405.[Su Zhonghua, Peng Xiaodong, Xie Weidong, Liu Weiting, Yang Zonglun. High Temperature Performance of Dispersion Strengthened Pt-3Rh Alloy[J]. Rare Metal Materials and Engineering,2012,41(3):402~405.]
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  • 收稿日期:2011-03-21
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