Effects of Rare Earth on the Heat Resistance of Ni-Mo Cast iron in Permanent Mould

Wang Qiang; Luo Yi

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Effects of Rare Earth on the Heat Resistance of Ni-Mo Cast iron in Permanent Mould
Issue 6, Pages: 369-371(2006)
Published： 2006 ，
DOI：

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[1]王强,罗毅.RE对金属型Ni-Mo铸铁耐热性能的影响[J].特种铸造及有色合金,2006(06):369-371+319.

Wang Qiang, Luo Yi. Effects of Rare Earth on the Heat Resistance of Ni-Mo Cast iron in Permanent Mould. [J]. Special Casting & Nonferrous Alloys (6):369-371(2006)
[1]王强,罗毅.RE对金属型Ni-Mo铸铁耐热性能的影响[J].特种铸造及有色合金,2006(06):369-371+319. DOI：

Wang Qiang, Luo Yi. Effects of Rare Earth on the Heat Resistance of Ni-Mo Cast iron in Permanent Mould. [J]. Special Casting & Nonferrous Alloys (6):369-371(2006) DOI：

摘要

研究了RE对金属型铸铁件热疲劳性能和抗氧化性能的影响。RE中的Ce和La加入这种低合金铸铁中形成了NiMoRE灰铸铁

并对该铸铁试样在900℃退火和在自制的热疲劳试验机上进行了热疲劳试验。试验结果表明

RE的加入可使NiMo灰铸铁具有较好的高温力学性能

其加入量为0.5%（质量分数）时尤为显著。

Abstract

Effects of rare earth on the heat fatigue resistance and oxidation resistant of cast iron parts in permanent mould were investigated to improve heat fatigue resistance of cast iron tool materials for glass industry. Ni-Mo-Re cast iron is formed in the low alloying cast iron with adding RE containing 0.05%Ce and 0.1% La. Heat fatigue experiment of the samples annealed at 900 ℃ on a self-developed heat fatigue tester indicates that Re elements can obviously improve the mechanical properties at high temperature of Ni-Mo grey cast iron.