Tempering of AISI 403 stainless steel

✍ Scribed by L.C. Lim; M.O. Lai; J. Ma; D.O. Northwood; Baihe Miao

• Book ID: 103952116
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 618 KB
• Volume: 171
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(93)90388-u

✦ Synopsis

The tempering behaviour of AISI 403 martensitic stainless steel over the temperature range from 480 to 720 °C has been investigated, with particular anention being paid to the secondary hardening and sensitization effects produced by the tormation of alloy carbides during tempering. The secondary hardening effect was determined by means of a standard hardness test. The extent of sensitization and its effect on the mechanical properties of the tempered steel were assessed by means of a modified Strauss test and a low speed tensile test in brine respectively. The results show that the following four distinctive processes occurred during tempering of AISI 403 martensitic stainless steel: annealing, secondary hardening, sensitization and healing. The tempering conditions over which each of these fimr processes dominates are presented in the form of a tempering map for easy reference.