强磁场对Ni-33Al—28Cr-5．0Mo-0．5Hf合金强化及其断裂特征影响

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	强磁场对Ni-33Al—28Cr-5．0Mo-0．5Hf合金强化及其断裂特征影响
其他题名	Influence of strong magnetic field on strength and fracture properties of Ni-33Al-28Cr-5.0Mo-0.5Hf alloys
	马国军; 吴承伟; 周文龙; 郭杏林; 季守华; 郭建亭
	2005
发表期刊	大连理工大学学报
ISSN	1000-8608
卷号	45.0 期号:005 页码:640-643
摘要	研究了Ni-33Al—28Cr-5．0Mo-0．5Hf高温合金在900℃经10T强磁场处理后室温下的力学性能变化．发现合金经过强磁场处理后，抗弯强度增加了75％，但弹性模量几乎没有改变．对试样断口的观察表明，磁场使得试件呈现韧性断裂特征；而没经磁场处理的试件断口形貌呈现脆性断裂特征．微观分析表明，在强磁场和温度场的耦合作用下，原来在NiAl-Cr（Mo）相边界处析出的块状和细小颗粒状的Heusler相（Ni2AlHf）因大量溶解而减少。
其他摘要	The mechanical property of Ni-33Al-28Cr-5.0Mo-0.5Hf super-alloy, treated under 900 ℃ with a 10 T strong magnetic field was studied under room temperature. It was found that the bending strength of the alloy was increased by 75 % after the magnetic field treatment. But the elastic modulus was almost unchanged. Observation of the fracture section showed that the alloy gave rise to some ductile fracture characteristics after treated by the magnetic field. But it exhibited a pure brittle fracture without the magnetic treatment. Microstructure observation showed that piece and fine particle Heusler phases （Ni2AlHf） separated from NiAl-Cr（Mo） phase boundary were partially dissolved after treatment of the strong magnetic field.
关键词	强磁场高温合金抗弯强度韧性断裂
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:2041533
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/154701
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	马国军,吴承伟,周文龙,等. 强磁场对Ni-33Al—28Cr-5．0Mo-0．5Hf合金强化及其断裂特征影响[J]. 大连理工大学学报,2005,45.0(005):640-643.
APA	马国军,吴承伟,周文龙,郭杏林,季守华,&郭建亭.(2005).强磁场对Ni-33Al—28Cr-5．0Mo-0．5Hf合金强化及其断裂特征影响.大连理工大学学报,45.0(005),640-643.
MLA	马国军,et al."强磁场对Ni-33Al—28Cr-5．0Mo-0．5Hf合金强化及其断裂特征影响".大连理工大学学报 45.0.005(2005):640-643.