Effect of Ti Addition on Carbide Modification and the Microscopic Simulation of Impact Toughness in High-Carbon Cr-V Tool Steels

被引：15

作者：

Cho, Ki Sub ^{[1
]}

Kim, Sang Il ^{[1
]}

Park, Sung Soo ^{[1
]}

Choi, Won Suk ^{[1
]}

Moon, Hee Kwon ^{[2
]}

Kwon, Hoon ^{[1
]}

机构：

[1] Kookmin Univ, CAMT, Seoul 136702, South Korea

[2] Human Resources Dev Serv Korea, Ulsan 44538, South Korea

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2016年 / 47A卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

HIGH-SPEED STEEL; SECONDARY HARDENING STEEL; FRACTURE-TOUGHNESS; WEAR-RESISTANCE; HEAT-TREATMENT; MICROSTRUCTURE; ROLLS; CONSTITUTION; BEHAVIOR; SURFACE;

D O I：

10.1007/s11661-015-3216-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In D7 tool steel, which contains high levels of primary carbides, the influence of carbide modification by Ti addition was quantitatively analyzed. Considering the Griffith-Irwin energy criterion for crack growth, the impact energy was evaluated by substituting a microscopic factor of the normalized number density of carbides cracked during hardness indentation tests for the crack length. The impact energy was enhanced with Ti addition because Ti reduced and refined the primary M7C3 carbide phase of elongated morphology, reducing the probability of crack generation.

引用

页码：26 / 32

页数：7

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