Al-Ti-B丝在高强BH135活塞上的应用

魏作山; 高希柱; 冯增建

doi:10.15980/j.tzzz.2016.08.026

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Al-Ti-B丝在高强BH135活塞上的应用
Application of Al-Ti-B Wire in the New High Strength Wear Resistant Piston Materials
2016年36卷第8期页码：874-876
纸质出版日期： 2016 ，
DOI： 10.15980/j.tzzz.2016.08.026

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[1]魏作山,高希柱,冯增建.Al-Ti-B丝在高强BH135活塞上的应用[J].特种铸造及有色合金,2016,36(08):874-876.

Wei Zuoshan, Gao Xizhu, Feng Zengjian. Application of Al-Ti-B Wire in the New High Strength Wear Resistant Piston Materials[J]. Special Casting & Nonferrous Alloys, 2016,36(8):874-876.
[1]魏作山,高希柱,冯增建.Al-Ti-B丝在高强BH135活塞上的应用[J].特种铸造及有色合金,2016,36(08):874-876. DOI： 10.15980/j.tzzz.2016.08.026.

Wei Zuoshan, Gao Xizhu, Feng Zengjian. Application of Al-Ti-B Wire in the New High Strength Wear Resistant Piston Materials[J]. Special Casting & Nonferrous Alloys, 2016,36(8):874-876. DOI： 10.15980/j.tzzz.2016.08.026.

摘要

采用在线添加的方式将Al-Ti-B丝加入BH135活塞合金中

并对其细化效果进行研究。结果表明

Al-Ti-B丝的加入对Al-P变质效果没有影响;加入0.1%的Al-Ti-B后

BH135合金中粗大的柱状晶和羽毛晶变成细小的等轴晶

晶粒尺寸为576μm左右;同时抗拉强度提高了3.8%

.0%

伸长率提高了11.4%

7.1%

室温疲劳强度提高了13%。

Abstract

Al-Ti-B alloy wire was added to new high strength wear resistant piston materials—BH135online referring to understand its refining effects.The results reveal that Al-Ti-B wire is independent on the Al-P modification.With 0.1% Al-Ti-B wire

coarse columnar grain and feathery grain in BH135 alloy are converted into fine equiaxed grain

where the grain size is refined to approximately 576μm.Meanwhile

the tensile strength

elongation and fatique rength of the modified BH135 alloy are increased by 3.8%

.0%

13%

11.4%

7.1%

respectibely.