Manufacturing and inspection method of 1Cr13 evaluation test bar

• Main Authors: HUANG ZHI, SONG LEIJUN, LI ZHUMAO
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a manufacturing and inspection method of a 1Cr13 evaluation test bar. The manufacturing and inspection method comprises the following steps: 1) forging a square billet; 2) carrying out quenching and tempering heat treatment; (3) inspecting a test bar; and 4) carrying out conclusion analysis: performing analyzing in combination with macroscopic and microscopic form of the crack. If the cracks are in the form of rigid and straight appearance, discontinuous and dispersed distribution, round and blunt tail parts and decarburized two sides of the cracks, the cracks exist before heat treatment; if the cracks are continuously and intensively distributed, the tail parts are sharp, and the cracks are not decarbonized, the cracks are formed in the heat treatment process. Through a series of inspection methods such as macroscopic analysis, anatomical sampling, macroscopic inspection, metallographic inspection and the like, the generation reason of the crack of the test bar is contrastively analyz