孙中华,孙道柱,刘洁,佟琛,张雲飞,彭会芬

• 1:河钢集团钢研总院
• 2:河北工业大学材料科学与工程学院

摘要(Abstract)：

采用光学显微镜、扫描电镜(SEM)、维氏硬度计、拉伸试验机、热膨胀仪等手段,分别研究了Ti、Nb、Mo、Cr对热轧Fe-36Ni因瓦合金显微组织、碳化物析出相特征、力学性能和热膨胀性能的影响。发现Ti和Mo的碳化物容易以圆形颗粒形式析出,Nb和Cr的碳化物则以短棒状形式析出。碳化物析出相的存在状态以及物理性质显著影响因瓦合金的力学性能和热膨胀性能,其中,Mo合金化的因瓦合金具有最高的抗拉强度,而Cr合金化的因瓦合金则具有最大的热膨胀系数。

关键词(KeyWords)： 因瓦合金;碳化物;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(51671076);; 河北省自然科学基金-钢铁联合研究基金(E2014318003)

作者(Author): 孙中华,孙道柱,刘洁,佟琛,张雲飞,彭会芬

DOI: 10.13289/j.issn.1009-6264.2017.04.013

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