Evaluation of Non-Basal Slip Activity in Rolled Mg-Li Alloys

被引：7

作者：

Miyano, Haruka ^{[1
,2
,5
]}

Takemoto, Keisuke ^{[1
,3
,5
,6
]}

Tsushida, Masayuki ^{[2
]}

Kitahara, Hiromoto ^{[3
,4
]}

Ando, Shinji ^{[4
]}

机构：

[1] Kumamoto Univ, Grad Sch Sci & Technol, Kumamoto 8608555, Japan

[2] Kumamoto Univ, Tech Div, Kumamoto 8608555, Japan

[3] Kumamoto Univ, Inst Ind Nanomat, Kumamoto 8608555, Japan

[4] Kumamoto Univ, Magnesium Res Ctr, Kumamoto 8608555, Japan

[5] Kumamoto Univ, Kumamoto, Japan

[6] AICHI STEEL Corp, Tokai, Ibaraki 4768666, Japan

来源：

MATERIALS TRANSACTIONS | 2021年 / 62卷 / 08期

关键词：

rolling texture; pyramidal slip; prismatic slip; basal slip; CRSS; PYRAMIDAL SLIP; MAGNESIUM; DEFORMATION; MECHANISMS; DUCTILITY; BEHAVIOR; TEXTURE;

D O I：

10.2320/matertrans.L-M2021826

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tensile tests of rolled Mg -6.2 mol%Li and Mg 11.7 mol%Li alloys were carried out at room temperature to clarify effects of lithium addition on the relationship between mechanical properties and activities of slip systems. Ductility increased with increasing lithium content. 0.2% proof stress increased when 6.2 mol%Li was added. However, Mg-11.7 mol%Li showed low 0.2% proof stress, compared to pure magnesium. On the other hand, maximum stress decreased with increasing lithium content. Frequency of non-basal slips increased with increasing lithium content. Also, first order pyramidal (c + a) slip showed the highest frequency among non-basal slips in Mg-Li alloys. Critical resolved shear stresses for non-basal slips, which were reduced by lithium addition, increased ductility but decreased tensile strength of magnesium.

引用

页码：1097 / 1101

页数：5

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