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onunion of paediatric talar neck fracture

Chinese Journal of Traumatology 2014年第1期17卷 48-49页

作者： Nipun jindal Parmanand Gupta sandeep jindal Department of Orthopaedics Government Medical Col- lege and Hospital Chandigarh India Department of Orthopaedics Giansagar Medical Col- lege and Hosiptal Banur Patiala India

Fractures of the paediatric talus are in- frequent injuries, most complicated by posttraumatic arthro- sis and avascular necrosis in the course of treatment. Non- union in children has not been reported before in literature. We report a case of a 12-year-old boy who had a nonunion of Hawkins type II fracture of talar neck. The nonunion was treated surgically with a good clinical outcome. The goalsof management in nonunion of paediatric talar neck fracture are different from those in fresh fractures. A suboptimal re- duction should be acceptable without trying a radical sur- gery which may cause further impairment.

关键词： Talus Fractures, ununited Paediatrics

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Issues in Welding of HSLA Steels

Issues in Welding of HSLA Steels

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2011 International Conference on Future Materials Engineering and Industry Application(ICFMEIA 2011)

作者： sandeep jindal Rahul Chhibber N.P.Mehta Faculty Member MM Engineering College/Mech.Engg.Dept. Faculty Member Thapar Univ./Mech.Engg.Dept. Director MM Engineering CollegeMullana (Ambala) cum Pro.V.C.MMUMullana (Ambala)India

The application of High Strength Low Alloy（HSLA） steels has expanded to almost all fields viz. automobile industry, ship building, line pipe, pressure vessels, building construction, bridges, storage tanks. HSLA steels were developed primarily for the automotive industry to replace low-carbon steels in order to improve the strength-to-weight ratio and meet the need for higherstrength materials. Due to higher-strength and added excellent toughness and formability, demand for HSLA steel is increasing globally. With the increase of demand;other issues like the selection of filler grade and selection of suitable welding process for the joining of these steels have become very significant. This paper discusses the various issues regarding selection of suitable grade and selection of suitable welding process for joining of HSLA steels and issues concerning the structural integrity of HSLA steel welds.

关键词： HSLA steels Arc Welding Acicular Ferrite Hydrogen Induced Cracking(HIC) and Heat Affected Zone(HAZ)

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