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根据Ｃｒ－Ｎｉ奥氏体不锈钢的特点，对其焊接残余应力小孔法测量技术要点——电阻应变片粘贴前的表面准备、应变片尺寸、钻孔直径等项进行了试验与分析。指出Ｃｒ－Ｎｉ奥氏体不锈钢焊接残余应力的小孔法测量是可行的
According to the characteristics of Cr-Ni austenitic stainless steel, the key points of measurement of the welding residual stress and the small hole method were tested and analyzed, such as surface preparation, strain gage size and hole diameter before the resistance strain gages were pasted. It is feasible to point out the measurement of the residual stress of Cr-Ni austenitic stainless steel welding