HIGH-STRENGTH AND HIGH-TOUGHNESS ULTRAFINE WIRE ROD AND METHOD FOR PRODUCING SAME

Title:

HIGH-STRENGTH AND HIGH-TOUGHNESS ULTRAFINE WIRE ROD AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2011/139117

Kind Code:

A2

Abstract:

The present invention relates to a high-strength and high-toughness ultrafine wire rod and to a method for producing same, wherein the wire rod is a high-strength and high-toughness ultrafine carbon-steel wire rod produced by controlling a microstructure through process control without adding expensive alloying elements. The microstructure of the carbon-steel wire rod comprises 60% or greater by area percentage of a ferrite structure, with the remainder being a cementite structure, wherein the ferrite has a mean diameter of 15 μm or less.

Inventors:

KIM, Dong-Hyun (5 Dongchon-dong Nam-guPohang, Kyungsangbook-do 790-360, 790-360, KR)
김동현 (경상북도 포항시 남구 동촌동 5번지 포항제철소내, 790-360 Kyungsangbook-do, 790-360, KR)
SHIN, Woo-Gi (5 Dongchon-dong Nam-guPohang, Kyungsangbook-do 790-360, 790-360, KR)

Application Number:

KR2011/003396

Publication Date:

November 10, 2011

Filing Date:

May 06, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

POSCO (1 Koedong-dong, Nam-guPohang, Kyungsangbook-do 790-300, 790-300, KR)
주식회사 포스코 (경상북도 포항시 남구 괴동동 1번지, 790-300 Kyungsangbook-do, 790-300, KR)
KIM, Dong-Hyun (5 Dongchon-dong Nam-guPohang, Kyungsangbook-do 790-360, 790-360, KR)
김동현 (경상북도 포항시 남구 동촌동 5번지 포항제철소내, 790-360 Kyungsangbook-do, 790-360, KR)

International Classes:

C22C38/00; C21D8/06; C21D9/52

Attorney, Agent or Firm:

C&S PATENT AND LAW OFFICE (13th Floor, Seocho-Pyunghwa Building1451-34 Seocho-dong, Seocho-gu, Seoul 137-070, 137-070, KR)

Download PDF:

View/Download PDF PDF Help

Claims:

Previous Patent: REFRIGERATOR

Next Patent: A PHARMACEUTICAL COMPOSITION AND A HEALTH FUNCTIONAL FOOD COMPOSITION FOR PREVENTING, TREATING OR IM...