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油淬Ni64Al36合金的逆马氏体相变
          
Reverse Martensitic Transformation in Oil-Quenched Ni64Al36 Alloy

摘    要
用内耗试验、差示扫描量热和X射线衍射分析等方法对油淬和炉冷的Ni64Al36(原子分数)合金从室温到400 ℃的逆马氏体相变过程进行了研究。结果表明: 在加热过程中油淬Ni64Al36合金在220 ℃出现一个内耗峰, 冷却时内耗峰的温度移到160 ℃, 而炉冷Ni64Al36合金无内耗峰出现;油淬Ni64Al36合金的内耗峰峰位不随振动频率而变化, 但峰高随频率的减小和升温速率的提高而增大;油淬Ni64Al36合金在冷却和加热时出现的两个内耗峰分别是由γ→L10马氏体转变及其逆马氏体转变引起的;在室温到400 ℃有限次数热循环范围内, 热循环次数对油淬Ni64Al36合金正、逆马氏体转变的影响很小。
标    签 油淬   Ni64Al36合金   马氏体相变   内耗   oil-quenching   Ni64Al36 alloy   martensitic transformation   internal friction  
 
Abstract
The reverse martensitic transformations of oil-quenched and furnace-cooled Ni64Al36 (at%) alloys at temperature from room temperature to 400 ℃ were studied by internal friction measurement, differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). The results show that there was an internal friction peak appeared at temperature about 220 ℃ during heating for the oil-quenched Ni64Al36 alloy, and it moved to 160 ℃ in cooling process. But the furnace-cooled Ni64Al36 alloy did not have any internal friction peak. The peak-height increased with decreasing vibration frequency and increasing heating rate. The internal friction peaks of the oil-quenched Ni64Al36 alloy during heating and cooling were attributable to γ→L10 martensitic transformation and its reverse process respectively. The influence of the thermal cycle times on martensitic transformation and its reverse process was not observed in the limited thermal cycles from room temperature to 400 ℃ for oil-quenched Ni64Al36 alloy.

中图分类号 TG111.5

 
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所属栏目 新材料新工艺

基金项目 江苏省高校科研成果产业化推进项目(JHZD2012-48);苏州市科技计划项目(SGZ2012058, SGZ2013128);苏州市职业大学校级项目(2013SZDYJ05)

收稿日期 2014/2/28

修改稿日期 2014/10/17

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备注周正存(1962-), 男, 安徽舒城人, 教授。

引用该论文: ZHOU Zheng-cun,DU Jie,ZHANG Yi-ping,GU Su-yi,YANG Hong,YAN Yong-jian. Reverse Martensitic Transformation in Oil-Quenched Ni64Al36 Alloy[J]. Materials for mechancial engineering, 2014, 38(12): 46~49
周正存,杜洁,张义平,顾苏怡,杨洪,严勇健. 油淬Ni64Al36合金的逆马氏体相变[J]. 机械工程材料, 2014, 38(12): 46~49


被引情况:


【1】徐然,罗丰华,王铸博, "不同温度淬火后Co39Ni34Al27形状记忆合金的组织与性能",机械工程材料 40, 62-66(2016)



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