Improved Criteria for Acceptable Yield Point Elongation in Surface Critical Steels

Dr. David Matlock ; Dr. John Speer

关键词: COATINGS;    ELONGATION;    STEELS;    STRAINS;    SUBSTRATES;    TESTING Sheet Steel;    YPE;    High Strength Steel;   

DOI  :  10.2172/917023
RP-ID  :  None
PID  :  OSTI ID: 917023
Others  :  TRN: US200816%%232

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Yield point elongation (YPE) is considered undesirable in surface critical applications where steel is formed since "strain lines" or Luders bands are created during forming. This project will examine in detail the formation of luders bands in industrially relevant strain states including the influence of substrate properties and coatings on Luders appearance. Mechanical testing and surface profilometry were the primary methods of investigation.