Bending Strength and Fracture Behavior of Ni50Mn29Ga21 Alloy with Terbium  

作　　者：ZHAOZeng-qi XIONGWei WUShuang-xia WANGXin-lin 

机构地区：[1]BaotouResearchInstituteofRareEarth,Baotou014010,China [2]CentralIronandSteelResearchInstitute,Beijing100081,China

出　　处：《Journal of Iron and Steel Research International》2004年第5期55-58,共4页

基　　金：Item Sponsored by National Key Fundamental Research Development Project of China(2001AA327022)

摘　　要：The bending strength and fracture behaviors of Ni50Mn29Ga21 alloy with terbium were investigated.The results show that the bending strength of the alloy is increased dramatically with the increase of terbium content.The fracture appearance of the sample without terbium is dominated by grain boundary fracture,while that with terbium is dominated by cleavage fracture with the increase of terbium content.Moreover,the grains are refined obviously and the oxygen content is decreased after adding terbium.The bending strength and fracture behaviors of Ni50Mn29Ga21 alloy with terbium were investigated.The results show that the bending strength of the alloy is increased dramatically with the increase of terbium content.The fracture appearance of the sample without terbium is dominated by grain boundary fracture,while that with terbium is dominated by cleavage fracture with the increase of terbium content.Moreover,the grains are refined obviously and the oxygen content is decreased after adding terbium.

关 键 词：Ni50Mn29Ga21 bending strength FRACTURE TERBIUM 

分 类 号：TG146.15[一般工业技术—材料科学与工程]