Research on Residual Stress Measurement of Magnesium Alloy Cabin Castings  

作　　者：YIN Lan FANG Yu WU Yunxin ZHANG Tao LI Chengxin GONG Hai 

机构地区：[1]Light Alloy Research Institute,Central South University,Changsha 410083,Hunan,China [2]State Key Laboratory of High Performance Complex Manufacturing,Central South University,Changsha 410083,Hunan,China [3]College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,Hunan,China [4]Shanghai Spaceflight Precision Machinery Institute,Shanghai 201600,China

出　　处：《上海航天（中英文）》2022年第1期46-54,共9页Aerospace Shanghai（Chinese&English）

摘　　要：Owing to the nonuniform wall thickness and complex internal structure,the measurement of the residual stress on magnesium alloy cabin castings is complex and difficult extremely,and thus seldom research has focused on the residual stress of magnesium alloy castings.In this paper,the blind-hole method,the X-ray diffraction(XRD)method,and the contour method are used to conduct comprehensive and systematic residual stress tests for a magnesium alloy cabin casting.The results show that the residual stress on the surface of the casting obtained by the blind-hole method is between-20.03 MPa and-71.03 MPa,the residual stress obtained by the XRD method is between-26.01 MPa and-87.11 MPa,while the residual stress obtained by the contour method is between-45.89 MPa and 76.87 MPa.The study can lay a basis for the subsequent research of magnesium alloy cabin castings,and provide a reference for the residual stress test of magnesium alloy castings.

关 键 词：magnesium alloy residual stress XRD method blind-hole method contour method 

分 类 号：TB302[一般工业技术—材料科学与工程]